Add the clang library to the repo (with some of my changes, too).

14 files changed, 999 insertions, 0 deletions

diff --git a/clang/INPUTS/Cocoa_h.m b/clang/INPUTS/Cocoa_h.m
new file mode 100644
index 0000000..e6ba599
--- /dev/null
+++ b/clang/INPUTS/Cocoa_h.m
@@ -0,0 +1,2 @@
+
+#import <Cocoa/Cocoa.h>
diff --git a/clang/INPUTS/all-std-headers.cpp b/clang/INPUTS/all-std-headers.cpp
new file mode 100644
index 0000000..5b5f4ec
--- /dev/null
+++ b/clang/INPUTS/all-std-headers.cpp
@@ -0,0 +1,86 @@
+#include <algorithm> 
+#include <bitset> 
+#include <cassert>
+#include <cctype>
+#include <cerrno>
+#include <cfloat>
+#include <ciso646>
+#include <climits>
+#include <clocale>
+#include <cmath>
+#include <complex>
+#include <csetjmp>
+#include <csignal>
+#include <cstdarg>
+#include <cstddef>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <ctime>
+#include <cwchar>
+#include <cwctype>
+#include <deque>
+#include <exception>
+#include <fstream> 
+#include <functional> 
+#include <iomanip> 
+#include <ios> 
+#include <iosfwd>
+#include <iostream>
+#include <istream>
+#include <iterator>
+#include <limits> 
+#include <list> 
+#include <locale> 
+#include <map>
+#include <memory>
+#include <new>
+#include <numeric> 
+#include <ostream>
+#include <queue> 
+#include <set> 
+#include <sstream>
+#include <stack>
+#include <stdexcept>
+#include <streambuf>
+#include <string>
+#if __has_include(<strstream>)
+#include <strstream>
+#endif
+#include <typeinfo>
+#include <utility>
+#include <valarray>
+#include <vector>
+
+#if __cplusplus >= 201103 || defined(__GXX_EXPERIMENTAL_CXX0X__)
+#include <array>
+#if __has_include(<atomic>)
+#include <atomic>
+#endif
+#include <chrono>
+#if __has_include(<codecvt>)
+#include <codecvt>
+#endif
+#include <condition_variable>
+#include <forward_list>
+#if __has_include(<future>)
+#include <future>
+#endif
+#include <initializer_list>
+#include <mutex>
+#include <random>
+#include <ratio>
+#include <regex>
+#if __has_include(<scoped_allocator>)
+#include <scoped_allocator>
+#endif
+#include <system_error>
+#include <thread>
+#include <tuple>
+#include <type_traits>
+#if __has_include(<typeindex>)
+#include <typeindex>
+#endif
+#include <unordered_map>
+#include <unordered_set>
+#endif
diff --git a/clang/INPUTS/c99-intconst-1.c b/clang/INPUTS/c99-intconst-1.c
new file mode 100644
index 0000000..629b0bc
--- /dev/null
+++ b/clang/INPUTS/c99-intconst-1.c
@@ -0,0 +1,639 @@
+/* Test for integer constant types.  */
+
+/* Origin: Joseph Myers <jsm28@cam.ac.uk>.  */
+/* { dg-do compile } */
+/* { dg-options "-std=iso9899:1999 -pedantic-errors" } */
+
+#include <limits.h>
+
+/* Assertion that constant C is of type T.  */
+#define ASSERT_CONST_TYPE(C, T)			\
+	do {					\
+	  typedef T type;			\
+	  typedef type **typepp;		\
+	  typedef __typeof__((C)) ctype;	\
+	  typedef ctype **ctypepp;		\
+	  typepp x = 0;				\
+	  ctypepp y = 0;			\
+	  x = y;				\
+	  y = x;				\
+	} while (0)
+
+/* (T *) if E is zero, (void *) otherwise.  */
+#define type_if_not(T, E) __typeof__(0 ? (T *)0 : (void *)(E))
+
+/* (T *) if E is nonzero, (void *) otherwise.  */
+#define type_if(T, E) type_if_not(T, !(E))
+
+/* Combine pointer types, all but one (void *).  */
+#define type_comb2(T1, T2) __typeof__(0 ? (T1)0 : (T2)0)
+#define type_comb3(T1, T2, T3) type_comb2(T1, type_comb2(T2, T3))
+#define type_comb4(T1, T2, T3, T4)				\
+	type_comb2(T1, type_comb2(T2, type_comb2(T3, T4)))
+#define type_comb6(T1, T2, T3, T4, T5, T6)				   \
+	type_comb2(T1,							   \
+		   type_comb2(T2,					   \
+			      type_comb2(T3,				   \
+					 type_comb2(T4,			   \
+						    type_comb2(T5, T6)))))
+
+/* (T1 *) if E1, otherwise (T2 *) if E2.  */
+#define first_of2p(T1, E1, T2, E2) type_comb2(type_if(T1, (E1)),	   \
+					     type_if(T2, (!(E1) && (E2))))
+/* (T1 *) if E1, otherwise (T2 *) if E2, otherwise (T3 *) if E3.  */
+#define first_of3p(T1, E1, T2, E2, T3, E3)			\
+	type_comb3(type_if(T1, (E1)),				\
+		   type_if(T2, (!(E1) && (E2))),		\
+		   type_if(T3, (!(E1) && !(E2) && (E3))))
+/* (T1 *) if E1, otherwise (T2 *) if E2, otherwise (T3 *) if E3, otherwise
+   (T4 *) if E4.  */
+#define first_of4p(T1, E1, T2, E2, T3, E3, T4, E4)			\
+	type_comb4(type_if(T1, (E1)),					\
+		   type_if(T2, (!(E1) && (E2))),			\
+		   type_if(T3, (!(E1) && !(E2) && (E3))),		\
+		   type_if(T4, (!(E1) && !(E2) && !(E3) && (E4))))
+/* (T1 *) if E1, otherwise (T2 *) if E2, otherwise (T3 *) if E3, otherwise
+   (T4 *) if E4, otherwise (T5 *) if E5, otherwise (T6 *) if E6.  */
+#define first_of6p(T1, E1, T2, E2, T3, E3, T4, E4, T5, E5, T6, E6)	    \
+	type_comb6(type_if(T1, (E1)),					    \
+		   type_if(T2, (!(E1) && (E2))),			    \
+		   type_if(T3, (!(E1) && !(E2) && (E3))),		    \
+		   type_if(T4, (!(E1) && !(E2) && !(E3) && (E4))),	    \
+		   type_if(T5, (!(E1) && !(E2) && !(E3) && !(E4) && (E5))), \
+		   type_if(T6, (!(E1) && !(E2) && !(E3)			    \
+				&& !(E4) && !(E5) && (E6))))
+
+/* Likewise, but return the original type rather than a pointer type.  */
+#define first_of2(T1, E1, T2, E2)			\
+	__typeof__(*((first_of2p(T1, (E1), T2, (E2)))0))
+#define first_of3(T1, E1, T2, E2, T3, E3)				\
+	__typeof__(*((first_of3p(T1, (E1), T2, (E2), T3, (E3)))0))
+#define first_of4(T1, E1, T2, E2, T3, E3, T4, E4)			    \
+	__typeof__(*((first_of4p(T1, (E1), T2, (E2), T3, (E3), T4, (E4)))0))
+#define first_of6(T1, E1, T2, E2, T3, E3, T4, E4, T5, E5, T6, E6)	\
+	__typeof__(*((first_of6p(T1, (E1), T2, (E2), T3, (E3),		\
+				 T4, (E4), T5, (E5), T6, (E6)))0))
+
+/* Types of constants according to the C99 rules.  */
+#define C99_UNSUF_DEC_TYPE(C)				\
+	first_of3(int, (C) <= INT_MAX,			\
+		  long int, (C) <= LONG_MAX,		\
+		  long long int, (C) <= LLONG_MAX)
+#define C99_UNSUF_OCTHEX_TYPE(C)				\
+	first_of6(int, (C) <= INT_MAX,				\
+		  unsigned int, (C) <= UINT_MAX,		\
+		  long int, (C) <= LONG_MAX,			\
+		  unsigned long int, (C) <= ULONG_MAX,		\
+		  long long int, (C) <= LLONG_MAX,		\
+		  unsigned long long int, (C) <= ULLONG_MAX)
+#define C99_SUFu_TYPE(C)					\
+	first_of3(unsigned int, (C) <= UINT_MAX,		\
+		  unsigned long int, (C) <= ULONG_MAX,		\
+		  unsigned long long int, (C) <= ULLONG_MAX)
+#define C99_SUFl_DEC_TYPE(C)				\
+	first_of2(long int, (C) <= LONG_MAX,		\
+		  long long int, (C) <= LLONG_MAX)
+#define C99_SUFl_OCTHEX_TYPE(C)					\
+	first_of4(long int, (C) <= LONG_MAX,			\
+		  unsigned long int, (C) <= ULONG_MAX,		\
+		  long long int, (C) <= LLONG_MAX,		\
+		  unsigned long long int, (C) <= ULLONG_MAX)
+#define C99_SUFul_TYPE(C)					\
+	first_of2(unsigned long int, (C) <= ULONG_MAX,		\
+		  unsigned long long int, (C) <= ULLONG_MAX)
+#define C99_SUFll_OCTHEX_TYPE(C)				\
+	first_of2(long long int, (C) <= LLONG_MAX,		\
+		  unsigned long long int, (C) <= ULLONG_MAX)
+
+/* Checks that constants have correct type.  */
+#define CHECK_UNSUF_DEC_TYPE(C) ASSERT_CONST_TYPE((C), C99_UNSUF_DEC_TYPE((C)))
+#define CHECK_UNSUF_OCTHEX_TYPE(C)				\
+	ASSERT_CONST_TYPE((C), C99_UNSUF_OCTHEX_TYPE((C)))
+#define CHECK_SUFu_TYPE(C) ASSERT_CONST_TYPE((C), C99_SUFu_TYPE((C)))
+#define CHECK_SUFl_DEC_TYPE(C) ASSERT_CONST_TYPE((C), C99_SUFl_DEC_TYPE((C)))
+#define CHECK_SUFl_OCTHEX_TYPE(C)				\
+	ASSERT_CONST_TYPE((C), C99_SUFl_OCTHEX_TYPE((C)))
+#define CHECK_SUFul_TYPE(C) ASSERT_CONST_TYPE((C), C99_SUFul_TYPE((C)))
+#define CHECK_SUFll_DEC_TYPE(C) ASSERT_CONST_TYPE((C), long long int)
+#define CHECK_SUFll_OCTHEX_TYPE(C)				\
+	ASSERT_CONST_TYPE((C), C99_SUFll_OCTHEX_TYPE((C)))
+#define CHECK_SUFull_TYPE(C) ASSERT_CONST_TYPE((C), unsigned long long int)
+
+/* Check a decimal value, with all suffixes.  */
+#define CHECK_DEC_CONST(C)			\
+	CHECK_UNSUF_DEC_TYPE(C);		\
+	CHECK_SUFu_TYPE(C##u);			\
+	CHECK_SUFu_TYPE(C##U);			\
+	CHECK_SUFl_DEC_TYPE(C##l);		\
+	CHECK_SUFl_DEC_TYPE(C##L);		\
+	CHECK_SUFul_TYPE(C##ul);		\
+	CHECK_SUFul_TYPE(C##uL);		\
+	CHECK_SUFul_TYPE(C##Ul);		\
+	CHECK_SUFul_TYPE(C##UL);		\
+	CHECK_SUFll_DEC_TYPE(C##ll);		\
+	CHECK_SUFll_DEC_TYPE(C##LL);		\
+	CHECK_SUFull_TYPE(C##ull);		\
+	CHECK_SUFull_TYPE(C##uLL);		\
+	CHECK_SUFull_TYPE(C##Ull);		\
+	CHECK_SUFull_TYPE(C##ULL);
+
+/* Check an octal or hexadecimal value, with all suffixes.  */
+#define CHECK_OCTHEX_CONST(C)			\
+	CHECK_UNSUF_OCTHEX_TYPE(C);		\
+	CHECK_SUFu_TYPE(C##u);			\
+	CHECK_SUFu_TYPE(C##U);			\
+	CHECK_SUFl_OCTHEX_TYPE(C##l);		\
+	CHECK_SUFl_OCTHEX_TYPE(C##L);		\
+	CHECK_SUFul_TYPE(C##ul);		\
+	CHECK_SUFul_TYPE(C##uL);		\
+	CHECK_SUFul_TYPE(C##Ul);		\
+	CHECK_SUFul_TYPE(C##UL);		\
+	CHECK_SUFll_OCTHEX_TYPE(C##ll);		\
+	CHECK_SUFll_OCTHEX_TYPE(C##LL);		\
+	CHECK_SUFull_TYPE(C##ull);		\
+	CHECK_SUFull_TYPE(C##uLL);		\
+	CHECK_SUFull_TYPE(C##Ull);		\
+	CHECK_SUFull_TYPE(C##ULL);
+
+#define CHECK_OCT_CONST(C) CHECK_OCTHEX_CONST(C)
+#define CHECK_HEX_CONST(C)			\
+	CHECK_OCTHEX_CONST(0x##C);		\
+	CHECK_OCTHEX_CONST(0X##C);
+
+/* True iff "long long" is at least B bits.  This presumes that (B-2)/3 is at
+   most 63.  */
+#define LLONG_AT_LEAST(B)			\
+	(LLONG_MAX >> ((B)-2)/3 >> ((B)-2)/3	\
+	 >> ((B)-2 - ((B)-2)/3 - ((B)-2)/3))
+
+#define LLONG_HAS_BITS(B) (LLONG_AT_LEAST((B)) && !LLONG_AT_LEAST((B) + 1))
+
+void
+foo (void)
+{
+  /* Decimal.  */
+  /* Check all 2^n and 2^n - 1 up to 2^71 - 1.  */
+  CHECK_DEC_CONST(1);
+  CHECK_DEC_CONST(2);
+  CHECK_DEC_CONST(3);
+  CHECK_DEC_CONST(4);
+  CHECK_DEC_CONST(7);
+  CHECK_DEC_CONST(8);
+  CHECK_DEC_CONST(15);
+  CHECK_DEC_CONST(16);
+  CHECK_DEC_CONST(31);
+  CHECK_DEC_CONST(32);
+  CHECK_DEC_CONST(63);
+  CHECK_DEC_CONST(64);
+  CHECK_DEC_CONST(127);
+  CHECK_DEC_CONST(128);
+  CHECK_DEC_CONST(255);
+  CHECK_DEC_CONST(256);
+  CHECK_DEC_CONST(511);
+  CHECK_DEC_CONST(512);
+  CHECK_DEC_CONST(1023);
+  CHECK_DEC_CONST(1024);
+  CHECK_DEC_CONST(2047);
+  CHECK_DEC_CONST(2048);
+  CHECK_DEC_CONST(4095);
+  CHECK_DEC_CONST(4096);
+  CHECK_DEC_CONST(8191);
+  CHECK_DEC_CONST(8192);
+  CHECK_DEC_CONST(16383);
+  CHECK_DEC_CONST(16384);
+  CHECK_DEC_CONST(32767);
+  CHECK_DEC_CONST(32768);
+  CHECK_DEC_CONST(65535);
+  CHECK_DEC_CONST(65536);
+  CHECK_DEC_CONST(131071);
+  CHECK_DEC_CONST(131072);
+  CHECK_DEC_CONST(262143);
+  CHECK_DEC_CONST(262144);
+  CHECK_DEC_CONST(524287);
+  CHECK_DEC_CONST(524288);
+  CHECK_DEC_CONST(1048575);
+  CHECK_DEC_CONST(1048576);
+  CHECK_DEC_CONST(2097151);
+  CHECK_DEC_CONST(2097152);
+  CHECK_DEC_CONST(4194303);
+  CHECK_DEC_CONST(4194304);
+  CHECK_DEC_CONST(8388607);
+  CHECK_DEC_CONST(8388608);
+  CHECK_DEC_CONST(16777215);
+  CHECK_DEC_CONST(16777216);
+  CHECK_DEC_CONST(33554431);
+  CHECK_DEC_CONST(33554432);
+  CHECK_DEC_CONST(67108863);
+  CHECK_DEC_CONST(67108864);
+  CHECK_DEC_CONST(134217727);
+  CHECK_DEC_CONST(134217728);
+  CHECK_DEC_CONST(268435455);
+  CHECK_DEC_CONST(268435456);
+  CHECK_DEC_CONST(536870911);
+  CHECK_DEC_CONST(536870912);
+  CHECK_DEC_CONST(1073741823);
+  CHECK_DEC_CONST(1073741824);
+  CHECK_DEC_CONST(2147483647);
+  CHECK_DEC_CONST(2147483648);
+  CHECK_DEC_CONST(4294967295);
+  CHECK_DEC_CONST(4294967296);
+  CHECK_DEC_CONST(8589934591);
+  CHECK_DEC_CONST(8589934592);
+  CHECK_DEC_CONST(17179869183);
+  CHECK_DEC_CONST(17179869184);
+  CHECK_DEC_CONST(34359738367);
+  CHECK_DEC_CONST(34359738368);
+  CHECK_DEC_CONST(68719476735);
+  CHECK_DEC_CONST(68719476736);
+  CHECK_DEC_CONST(137438953471);
+  CHECK_DEC_CONST(137438953472);
+  CHECK_DEC_CONST(274877906943);
+  CHECK_DEC_CONST(274877906944);
+  CHECK_DEC_CONST(549755813887);
+  CHECK_DEC_CONST(549755813888);
+  CHECK_DEC_CONST(1099511627775);
+  CHECK_DEC_CONST(1099511627776);
+  CHECK_DEC_CONST(2199023255551);
+  CHECK_DEC_CONST(2199023255552);
+  CHECK_DEC_CONST(4398046511103);
+  CHECK_DEC_CONST(4398046511104);
+  CHECK_DEC_CONST(8796093022207);
+  CHECK_DEC_CONST(8796093022208);
+  CHECK_DEC_CONST(17592186044415);
+  CHECK_DEC_CONST(17592186044416);
+  CHECK_DEC_CONST(35184372088831);
+  CHECK_DEC_CONST(35184372088832);
+  CHECK_DEC_CONST(70368744177663);
+  CHECK_DEC_CONST(70368744177664);
+  CHECK_DEC_CONST(140737488355327);
+  CHECK_DEC_CONST(140737488355328);
+  CHECK_DEC_CONST(281474976710655);
+  CHECK_DEC_CONST(281474976710656);
+  CHECK_DEC_CONST(562949953421311);
+  CHECK_DEC_CONST(562949953421312);
+  CHECK_DEC_CONST(1125899906842623);
+  CHECK_DEC_CONST(1125899906842624);
+  CHECK_DEC_CONST(2251799813685247);
+  CHECK_DEC_CONST(2251799813685248);
+  CHECK_DEC_CONST(4503599627370495);
+  CHECK_DEC_CONST(4503599627370496);
+  CHECK_DEC_CONST(9007199254740991);
+  CHECK_DEC_CONST(9007199254740992);
+  CHECK_DEC_CONST(18014398509481983);
+  CHECK_DEC_CONST(18014398509481984);
+  CHECK_DEC_CONST(36028797018963967);
+  CHECK_DEC_CONST(36028797018963968);
+  CHECK_DEC_CONST(72057594037927935);
+  CHECK_DEC_CONST(72057594037927936);
+  CHECK_DEC_CONST(144115188075855871);
+  CHECK_DEC_CONST(144115188075855872);
+  CHECK_DEC_CONST(288230376151711743);
+  CHECK_DEC_CONST(288230376151711744);
+  CHECK_DEC_CONST(576460752303423487);
+  CHECK_DEC_CONST(576460752303423488);
+  CHECK_DEC_CONST(1152921504606846975);
+  CHECK_DEC_CONST(1152921504606846976);
+  CHECK_DEC_CONST(2305843009213693951);
+  CHECK_DEC_CONST(2305843009213693952);
+  CHECK_DEC_CONST(4611686018427387903);
+  CHECK_DEC_CONST(4611686018427387904);
+  CHECK_DEC_CONST(9223372036854775807);
+#if LLONG_AT_LEAST(65)
+  CHECK_DEC_CONST(9223372036854775808);
+  CHECK_DEC_CONST(18446744073709551615);
+#endif
+#if LLONG_AT_LEAST(66)
+  CHECK_DEC_CONST(18446744073709551616);
+  CHECK_DEC_CONST(36893488147419103231);
+#endif
+#if LLONG_AT_LEAST(67)
+  CHECK_DEC_CONST(36893488147419103232);
+  CHECK_DEC_CONST(73786976294838206463);
+#endif
+#if LLONG_AT_LEAST(68)
+  CHECK_DEC_CONST(73786976294838206464);
+  CHECK_DEC_CONST(147573952589676412927);
+#endif
+#if LLONG_AT_LEAST(69)
+  CHECK_DEC_CONST(147573952589676412928);
+  CHECK_DEC_CONST(295147905179352825855);
+#endif
+#if LLONG_AT_LEAST(70)
+  CHECK_DEC_CONST(295147905179352825856);
+  CHECK_DEC_CONST(590295810358705651711);
+#endif
+#if LLONG_AT_LEAST(71)
+  CHECK_DEC_CONST(590295810358705651712);
+  CHECK_DEC_CONST(1180591620717411303423);
+#endif
+#if LLONG_AT_LEAST(72)
+  CHECK_DEC_CONST(1180591620717411303424);
+  CHECK_DEC_CONST(2361183241434822606847);
+#endif
+  /* Octal and hexadecimal.  */
+  /* Check all 2^n and 2^n - 1 up to 2^72 - 1.  */
+  CHECK_OCT_CONST(0);
+  CHECK_HEX_CONST(0);
+  CHECK_OCT_CONST(01);
+  CHECK_HEX_CONST(1);
+  CHECK_OCT_CONST(02);
+  CHECK_HEX_CONST(2);
+  CHECK_OCT_CONST(03);
+  CHECK_HEX_CONST(3);
+  CHECK_OCT_CONST(04);
+  CHECK_HEX_CONST(4);
+  CHECK_OCT_CONST(07);
+  CHECK_HEX_CONST(7);
+  CHECK_OCT_CONST(010);
+  CHECK_HEX_CONST(8);
+  CHECK_OCT_CONST(017);
+  CHECK_HEX_CONST(f);
+  CHECK_OCT_CONST(020);
+  CHECK_HEX_CONST(10);
+  CHECK_OCT_CONST(037);
+  CHECK_HEX_CONST(1f);
+  CHECK_OCT_CONST(040);
+  CHECK_HEX_CONST(20);
+  CHECK_OCT_CONST(077);
+  CHECK_HEX_CONST(3f);
+  CHECK_OCT_CONST(0100);
+  CHECK_HEX_CONST(40);
+  CHECK_OCT_CONST(0177);
+  CHECK_HEX_CONST(7f);
+  CHECK_OCT_CONST(0200);
+  CHECK_HEX_CONST(80);
+  CHECK_OCT_CONST(0377);
+  CHECK_HEX_CONST(ff);
+  CHECK_OCT_CONST(0400);
+  CHECK_HEX_CONST(100);
+  CHECK_OCT_CONST(0777);
+  CHECK_HEX_CONST(1ff);
+  CHECK_OCT_CONST(01000);
+  CHECK_HEX_CONST(200);
+  CHECK_OCT_CONST(01777);
+  CHECK_HEX_CONST(3ff);
+  CHECK_OCT_CONST(02000);
+  CHECK_HEX_CONST(400);
+  CHECK_OCT_CONST(03777);
+  CHECK_HEX_CONST(7ff);
+  CHECK_OCT_CONST(04000);
+  CHECK_HEX_CONST(800);
+  CHECK_OCT_CONST(07777);
+  CHECK_HEX_CONST(fff);
+  CHECK_OCT_CONST(010000);
+  CHECK_HEX_CONST(1000);
+  CHECK_OCT_CONST(017777);
+  CHECK_HEX_CONST(1fff);
+  CHECK_OCT_CONST(020000);
+  CHECK_HEX_CONST(2000);
+  CHECK_OCT_CONST(037777);
+  CHECK_HEX_CONST(3fff);
+  CHECK_OCT_CONST(040000);
+  CHECK_HEX_CONST(4000);
+  CHECK_OCT_CONST(077777);
+  CHECK_HEX_CONST(7fff);
+  CHECK_OCT_CONST(0100000);
+  CHECK_HEX_CONST(8000);
+  CHECK_OCT_CONST(0177777);
+  CHECK_HEX_CONST(ffff);
+  CHECK_OCT_CONST(0200000);
+  CHECK_HEX_CONST(10000);
+  CHECK_OCT_CONST(0377777);
+  CHECK_HEX_CONST(1ffff);
+  CHECK_OCT_CONST(0400000);
+  CHECK_HEX_CONST(20000);
+  CHECK_OCT_CONST(0777777);
+  CHECK_HEX_CONST(3ffff);
+  CHECK_OCT_CONST(01000000);
+  CHECK_HEX_CONST(40000);
+  CHECK_OCT_CONST(01777777);
+  CHECK_HEX_CONST(7ffff);
+  CHECK_OCT_CONST(02000000);
+  CHECK_HEX_CONST(80000);
+  CHECK_OCT_CONST(03777777);
+  CHECK_HEX_CONST(fffff);
+  CHECK_OCT_CONST(04000000);
+  CHECK_HEX_CONST(100000);
+  CHECK_OCT_CONST(07777777);
+  CHECK_HEX_CONST(1fffff);
+  CHECK_OCT_CONST(010000000);
+  CHECK_HEX_CONST(200000);
+  CHECK_OCT_CONST(017777777);
+  CHECK_HEX_CONST(3fffff);
+  CHECK_OCT_CONST(020000000);
+  CHECK_HEX_CONST(400000);
+  CHECK_OCT_CONST(037777777);
+  CHECK_HEX_CONST(7fffff);
+  CHECK_OCT_CONST(040000000);
+  CHECK_HEX_CONST(800000);
+  CHECK_OCT_CONST(077777777);
+  CHECK_HEX_CONST(ffffff);
+  CHECK_OCT_CONST(0100000000);
+  CHECK_HEX_CONST(1000000);
+  CHECK_OCT_CONST(0177777777);
+  CHECK_HEX_CONST(1ffffff);
+  CHECK_OCT_CONST(0200000000);
+  CHECK_HEX_CONST(2000000);
+  CHECK_OCT_CONST(0377777777);
+  CHECK_HEX_CONST(3ffffff);
+  CHECK_OCT_CONST(0400000000);
+  CHECK_HEX_CONST(4000000);
+  CHECK_OCT_CONST(0777777777);
+  CHECK_HEX_CONST(7ffffff);
+  CHECK_OCT_CONST(01000000000);
+  CHECK_HEX_CONST(8000000);
+  CHECK_OCT_CONST(01777777777);
+  CHECK_HEX_CONST(fffffff);
+  CHECK_OCT_CONST(02000000000);
+  CHECK_HEX_CONST(10000000);
+  CHECK_OCT_CONST(03777777777);
+  CHECK_HEX_CONST(1fffffff);
+  CHECK_OCT_CONST(04000000000);
+  CHECK_HEX_CONST(20000000);
+  CHECK_OCT_CONST(07777777777);
+  CHECK_HEX_CONST(3fffffff);
+  CHECK_OCT_CONST(010000000000);
+  CHECK_HEX_CONST(40000000);
+  CHECK_OCT_CONST(017777777777);
+  CHECK_HEX_CONST(7fffffff);
+  CHECK_OCT_CONST(020000000000);
+  CHECK_HEX_CONST(80000000);
+  CHECK_OCT_CONST(037777777777);
+  CHECK_HEX_CONST(ffffffff);
+  CHECK_OCT_CONST(040000000000);
+  CHECK_HEX_CONST(100000000);
+  CHECK_OCT_CONST(077777777777);
+  CHECK_HEX_CONST(1ffffffff);
+  CHECK_OCT_CONST(0100000000000);
+  CHECK_HEX_CONST(200000000);
+  CHECK_OCT_CONST(0177777777777);
+  CHECK_HEX_CONST(3ffffffff);
+  CHECK_OCT_CONST(0200000000000);
+  CHECK_HEX_CONST(400000000);
+  CHECK_OCT_CONST(0377777777777);
+  CHECK_HEX_CONST(7ffffffff);
+  CHECK_OCT_CONST(0400000000000);
+  CHECK_HEX_CONST(800000000);
+  CHECK_OCT_CONST(0777777777777);
+  CHECK_HEX_CONST(fffffffff);
+  CHECK_OCT_CONST(01000000000000);
+  CHECK_HEX_CONST(1000000000);
+  CHECK_OCT_CONST(01777777777777);
+  CHECK_HEX_CONST(1fffffffff);
+  CHECK_OCT_CONST(02000000000000);
+  CHECK_HEX_CONST(2000000000);
+  CHECK_OCT_CONST(03777777777777);
+  CHECK_HEX_CONST(3fffffffff);
+  CHECK_OCT_CONST(04000000000000);
+  CHECK_HEX_CONST(4000000000);
+  CHECK_OCT_CONST(07777777777777);
+  CHECK_HEX_CONST(7fffffffff);
+  CHECK_OCT_CONST(010000000000000);
+  CHECK_HEX_CONST(8000000000);
+  CHECK_OCT_CONST(017777777777777);
+  CHECK_HEX_CONST(ffffffffff);
+  CHECK_OCT_CONST(020000000000000);
+  CHECK_HEX_CONST(10000000000);
+  CHECK_OCT_CONST(037777777777777);
+  CHECK_HEX_CONST(1ffffffffff);
+  CHECK_OCT_CONST(040000000000000);
+  CHECK_HEX_CONST(20000000000);
+  CHECK_OCT_CONST(077777777777777);
+  CHECK_HEX_CONST(3ffffffffff);
+  CHECK_OCT_CONST(0100000000000000);
+  CHECK_HEX_CONST(40000000000);
+  CHECK_OCT_CONST(0177777777777777);
+  CHECK_HEX_CONST(7ffffffffff);
+  CHECK_OCT_CONST(0200000000000000);
+  CHECK_HEX_CONST(80000000000);
+  CHECK_OCT_CONST(0377777777777777);
+  CHECK_HEX_CONST(fffffffffff);
+  CHECK_OCT_CONST(0400000000000000);
+  CHECK_HEX_CONST(100000000000);
+  CHECK_OCT_CONST(0777777777777777);
+  CHECK_HEX_CONST(1fffffffffff);
+  CHECK_OCT_CONST(01000000000000000);
+  CHECK_HEX_CONST(200000000000);
+  CHECK_OCT_CONST(01777777777777777);
+  CHECK_HEX_CONST(3fffffffffff);
+  CHECK_OCT_CONST(02000000000000000);
+  CHECK_HEX_CONST(400000000000);
+  CHECK_OCT_CONST(03777777777777777);
+  CHECK_HEX_CONST(7fffffffffff);
+  CHECK_OCT_CONST(04000000000000000);
+  CHECK_HEX_CONST(800000000000);
+  CHECK_OCT_CONST(07777777777777777);
+  CHECK_HEX_CONST(ffffffffffff);
+  CHECK_OCT_CONST(010000000000000000);
+  CHECK_HEX_CONST(1000000000000);
+  CHECK_OCT_CONST(017777777777777777);
+  CHECK_HEX_CONST(1ffffffffffff);
+  CHECK_OCT_CONST(020000000000000000);
+  CHECK_HEX_CONST(2000000000000);
+  CHECK_OCT_CONST(037777777777777777);
+  CHECK_HEX_CONST(3ffffffffffff);
+  CHECK_OCT_CONST(040000000000000000);
+  CHECK_HEX_CONST(4000000000000);
+  CHECK_OCT_CONST(077777777777777777);
+  CHECK_HEX_CONST(7ffffffffffff);
+  CHECK_OCT_CONST(0100000000000000000);
+  CHECK_HEX_CONST(8000000000000);
+  CHECK_OCT_CONST(0177777777777777777);
+  CHECK_HEX_CONST(fffffffffffff);
+  CHECK_OCT_CONST(0200000000000000000);
+  CHECK_HEX_CONST(10000000000000);
+  CHECK_OCT_CONST(0377777777777777777);
+  CHECK_HEX_CONST(1fffffffffffff);
+  CHECK_OCT_CONST(0400000000000000000);
+  CHECK_HEX_CONST(20000000000000);
+  CHECK_OCT_CONST(0777777777777777777);
+  CHECK_HEX_CONST(3fffffffffffff);
+  CHECK_OCT_CONST(01000000000000000000);
+  CHECK_HEX_CONST(40000000000000);
+  CHECK_OCT_CONST(01777777777777777777);
+  CHECK_HEX_CONST(7fffffffffffff);
+  CHECK_OCT_CONST(02000000000000000000);
+  CHECK_HEX_CONST(80000000000000);
+  CHECK_OCT_CONST(03777777777777777777);
+  CHECK_HEX_CONST(ffffffffffffff);
+  CHECK_OCT_CONST(04000000000000000000);
+  CHECK_HEX_CONST(100000000000000);
+  CHECK_OCT_CONST(07777777777777777777);
+  CHECK_HEX_CONST(1ffffffffffffff);
+  CHECK_OCT_CONST(010000000000000000000);
+  CHECK_HEX_CONST(200000000000000);
+  CHECK_OCT_CONST(017777777777777777777);
+  CHECK_HEX_CONST(3ffffffffffffff);
+  CHECK_OCT_CONST(020000000000000000000);
+  CHECK_HEX_CONST(400000000000000);
+  CHECK_OCT_CONST(037777777777777777777);
+  CHECK_HEX_CONST(7ffffffffffffff);
+  CHECK_OCT_CONST(040000000000000000000);
+  CHECK_HEX_CONST(800000000000000);
+  CHECK_OCT_CONST(077777777777777777777);
+  CHECK_HEX_CONST(fffffffffffffff);
+  CHECK_OCT_CONST(0100000000000000000000);
+  CHECK_HEX_CONST(1000000000000000);
+  CHECK_OCT_CONST(0177777777777777777777);
+  CHECK_HEX_CONST(1fffffffffffffff);
+  CHECK_OCT_CONST(0200000000000000000000);
+  CHECK_HEX_CONST(2000000000000000);
+  CHECK_OCT_CONST(0377777777777777777777);
+  CHECK_HEX_CONST(3fffffffffffffff);
+  CHECK_OCT_CONST(0400000000000000000000);
+  CHECK_HEX_CONST(4000000000000000);
+  CHECK_OCT_CONST(0777777777777777777777);
+  CHECK_HEX_CONST(7fffffffffffffff);
+  CHECK_OCT_CONST(01000000000000000000000);
+  CHECK_HEX_CONST(8000000000000000);
+  CHECK_OCT_CONST(01777777777777777777777);
+  CHECK_HEX_CONST(ffffffffffffffff);
+#if LLONG_AT_LEAST(65)
+  CHECK_OCT_CONST(02000000000000000000000);
+  CHECK_HEX_CONST(10000000000000000);
+  CHECK_OCT_CONST(03777777777777777777777);
+  CHECK_HEX_CONST(1ffffffffffffffff);
+#endif
+#if LLONG_AT_LEAST(66)
+  CHECK_OCT_CONST(04000000000000000000000);
+  CHECK_HEX_CONST(20000000000000000);
+  CHECK_OCT_CONST(07777777777777777777777);
+  CHECK_HEX_CONST(3ffffffffffffffff);
+#endif
+#if LLONG_AT_LEAST(67)
+  CHECK_OCT_CONST(010000000000000000000000);
+  CHECK_HEX_CONST(40000000000000000);
+  CHECK_OCT_CONST(017777777777777777777777);
+  CHECK_HEX_CONST(7ffffffffffffffff);
+#endif
+#if LLONG_AT_LEAST(68)
+  CHECK_OCT_CONST(020000000000000000000000);
+  CHECK_HEX_CONST(80000000000000000);
+  CHECK_OCT_CONST(037777777777777777777777);
+  CHECK_HEX_CONST(fffffffffffffffff);
+#endif
+#if LLONG_AT_LEAST(69)
+  CHECK_OCT_CONST(040000000000000000000000);
+  CHECK_HEX_CONST(100000000000000000);
+  CHECK_OCT_CONST(077777777777777777777777);
+  CHECK_HEX_CONST(1fffffffffffffffff);
+#endif
+#if LLONG_AT_LEAST(70)
+  CHECK_OCT_CONST(0100000000000000000000000);
+  CHECK_HEX_CONST(200000000000000000);
+  CHECK_OCT_CONST(0177777777777777777777777);
+  CHECK_HEX_CONST(3fffffffffffffffff);
+#endif
+#if LLONG_AT_LEAST(71)
+  CHECK_OCT_CONST(0200000000000000000000000);
+  CHECK_HEX_CONST(400000000000000000);
+  CHECK_OCT_CONST(0377777777777777777777777);
+  CHECK_HEX_CONST(7fffffffffffffffff);
+#endif
+#if LLONG_AT_LEAST(72)
+  CHECK_OCT_CONST(0400000000000000000000000);
+  CHECK_HEX_CONST(800000000000000000);
+  CHECK_OCT_CONST(0777777777777777777777777);
+  CHECK_HEX_CONST(ffffffffffffffffff);
+#endif
+}
diff --git a/clang/INPUTS/carbon_h.c b/clang/INPUTS/carbon_h.c
new file mode 100644
index 0000000..599f123
--- /dev/null
+++ b/clang/INPUTS/carbon_h.c
@@ -0,0 +1,4 @@
+
+#include <Carbon/Carbon.h>
+
+//#import<vecLib/vecLib.h>
diff --git a/clang/INPUTS/cfg-big-switch.c b/clang/INPUTS/cfg-big-switch.c
new file mode 100644
index 0000000..a48b51a
--- /dev/null
+++ b/clang/INPUTS/cfg-big-switch.c
@@ -0,0 +1,27 @@
+#define EXPAND_2_CASES(i, x, y)    CASE(i, x, y);             CASE(i + 1, x, y);
+#define EXPAND_4_CASES(i, x, y)    EXPAND_2_CASES(i, x, y)    EXPAND_2_CASES(i + 2, x, y)
+#define EXPAND_8_CASES(i, x, y)    EXPAND_4_CASES(i, x, y)    EXPAND_4_CASES(i + 4, x, y)
+#define EXPAND_16_CASES(i, x, y)   EXPAND_8_CASES(i, x, y)    EXPAND_8_CASES(i + 8, x, y)
+#define EXPAND_32_CASES(i, x, y)   EXPAND_16_CASES(i, x, y)   EXPAND_16_CASES(i + 16, x, y)
+#define EXPAND_64_CASES(i, x, y)   EXPAND_32_CASES(i, x, y)   EXPAND_32_CASES(i + 32, x, y)
+#define EXPAND_128_CASES(i, x, y)  EXPAND_64_CASES(i, x, y)   EXPAND_64_CASES(i + 64, x, y)
+#define EXPAND_256_CASES(i, x, y)  EXPAND_128_CASES(i, x, y)  EXPAND_128_CASES(i + 128, x, y)
+#define EXPAND_512_CASES(i, x, y)  EXPAND_256_CASES(i, x, y)  EXPAND_256_CASES(i + 256, x, y)
+#define EXPAND_1024_CASES(i, x, y) EXPAND_512_CASES(i, x, y)  EXPAND_512_CASES(i + 512, x, y)
+#define EXPAND_2048_CASES(i, x, y) EXPAND_1024_CASES(i, x, y) EXPAND_1024_CASES(i + 1024, x, y)
+#define EXPAND_4096_CASES(i, x, y) EXPAND_2048_CASES(i, x, y) EXPAND_2048_CASES(i + 2048, x, y)
+
+// This has a *monstrous* single fan-out in the CFG, across 8000 blocks inside
+// the while loop.
+unsigned cfg_big_switch(int x) {
+  unsigned y = 0;
+  while (x > 0) {
+    switch(x) {
+#define CASE(i, x, y) \
+      case i: { int case_var = 3*x + i; y += case_var - 1; break; }
+EXPAND_4096_CASES(0, x, y);
+    }
+    --x;
+  }
+  return y;
+}
diff --git a/clang/INPUTS/cfg-long-chain1.c b/clang/INPUTS/cfg-long-chain1.c
new file mode 100644
index 0000000..2f55b2a
--- /dev/null
+++ b/clang/INPUTS/cfg-long-chain1.c
@@ -0,0 +1,20 @@
+#define EXPAND_2_BRANCHES(i, x, y)    BRANCH(i, x, y);              BRANCH(i + 1, x, y);
+#define EXPAND_4_BRANCHES(i, x, y)    EXPAND_2_BRANCHES(i, x, y)    EXPAND_2_BRANCHES(i + 2, x, y)
+#define EXPAND_8_BRANCHES(i, x, y)    EXPAND_4_BRANCHES(i, x, y)    EXPAND_4_BRANCHES(i + 4, x, y)
+#define EXPAND_16_BRANCHES(i, x, y)   EXPAND_8_BRANCHES(i, x, y)    EXPAND_8_BRANCHES(i + 8, x, y)
+#define EXPAND_32_BRANCHES(i, x, y)   EXPAND_16_BRANCHES(i, x, y)   EXPAND_16_BRANCHES(i + 16, x, y)
+#define EXPAND_64_BRANCHES(i, x, y)   EXPAND_32_BRANCHES(i, x, y)   EXPAND_32_BRANCHES(i + 32, x, y)
+#define EXPAND_128_BRANCHES(i, x, y)  EXPAND_64_BRANCHES(i, x, y)   EXPAND_64_BRANCHES(i + 64, x, y)
+#define EXPAND_256_BRANCHES(i, x, y)  EXPAND_128_BRANCHES(i, x, y)  EXPAND_128_BRANCHES(i + 128, x, y)
+#define EXPAND_512_BRANCHES(i, x, y)  EXPAND_256_BRANCHES(i, x, y)  EXPAND_256_BRANCHES(i + 256, x, y)
+#define EXPAND_1024_BRANCHES(i, x, y) EXPAND_512_BRANCHES(i, x, y)  EXPAND_512_BRANCHES(i + 512, x, y)
+#define EXPAND_2048_BRANCHES(i, x, y) EXPAND_1024_BRANCHES(i, x, y) EXPAND_1024_BRANCHES(i + 1024, x, y)
+#define EXPAND_4096_BRANCHES(i, x, y) EXPAND_2048_BRANCHES(i, x, y) EXPAND_2048_BRANCHES(i + 2048, x, y)
+
+unsigned cfg_long_chain_single_exit(unsigned x) {
+  unsigned y = 0;
+#define BRANCH(i, x, y) if ((x % 13171) < i) { int var = x / 13171; y ^= var; }
+  EXPAND_4096_BRANCHES(1, x, y);
+#undef BRANCH
+  return y;
+}
diff --git a/clang/INPUTS/cfg-long-chain2.c b/clang/INPUTS/cfg-long-chain2.c
new file mode 100644
index 0000000..150a084
--- /dev/null
+++ b/clang/INPUTS/cfg-long-chain2.c
@@ -0,0 +1,20 @@
+#define EXPAND_2_BRANCHES(i, x, y)    BRANCH(i, x, y);              BRANCH(i + 1, x, y);
+#define EXPAND_4_BRANCHES(i, x, y)    EXPAND_2_BRANCHES(i, x, y)    EXPAND_2_BRANCHES(i + 2, x, y)
+#define EXPAND_8_BRANCHES(i, x, y)    EXPAND_4_BRANCHES(i, x, y)    EXPAND_4_BRANCHES(i + 4, x, y)
+#define EXPAND_16_BRANCHES(i, x, y)   EXPAND_8_BRANCHES(i, x, y)    EXPAND_8_BRANCHES(i + 8, x, y)
+#define EXPAND_32_BRANCHES(i, x, y)   EXPAND_16_BRANCHES(i, x, y)   EXPAND_16_BRANCHES(i + 16, x, y)
+#define EXPAND_64_BRANCHES(i, x, y)   EXPAND_32_BRANCHES(i, x, y)   EXPAND_32_BRANCHES(i + 32, x, y)
+#define EXPAND_128_BRANCHES(i, x, y)  EXPAND_64_BRANCHES(i, x, y)   EXPAND_64_BRANCHES(i + 64, x, y)
+#define EXPAND_256_BRANCHES(i, x, y)  EXPAND_128_BRANCHES(i, x, y)  EXPAND_128_BRANCHES(i + 128, x, y)
+#define EXPAND_512_BRANCHES(i, x, y)  EXPAND_256_BRANCHES(i, x, y)  EXPAND_256_BRANCHES(i + 256, x, y)
+#define EXPAND_1024_BRANCHES(i, x, y) EXPAND_512_BRANCHES(i, x, y)  EXPAND_512_BRANCHES(i + 512, x, y)
+#define EXPAND_2048_BRANCHES(i, x, y) EXPAND_1024_BRANCHES(i, x, y) EXPAND_1024_BRANCHES(i + 1024, x, y)
+#define EXPAND_4096_BRANCHES(i, x, y) EXPAND_2048_BRANCHES(i, x, y) EXPAND_2048_BRANCHES(i + 2048, x, y)
+
+unsigned cfg_long_chain_multiple_exit(unsigned x) {
+  unsigned y = 0;
+#define BRANCH(i, x, y) if (((x % 13171) + ++y) < i) { int var = x / 13171 + y; return var; } 
+  EXPAND_4096_BRANCHES(1, x, y);
+#undef BRANCH
+  return 42;
+}
diff --git a/clang/INPUTS/cfg-long-chain3.c b/clang/INPUTS/cfg-long-chain3.c
new file mode 100644
index 0000000..cca4bdc
--- /dev/null
+++ b/clang/INPUTS/cfg-long-chain3.c
@@ -0,0 +1,21 @@
+#define EXPAND_2_BRANCHES(i, x, y)    BRANCH(i, x, y);              BRANCH(i + 1, x, y);
+#define EXPAND_4_BRANCHES(i, x, y)    EXPAND_2_BRANCHES(i, x, y)    EXPAND_2_BRANCHES(i + 2, x, y)
+#define EXPAND_8_BRANCHES(i, x, y)    EXPAND_4_BRANCHES(i, x, y)    EXPAND_4_BRANCHES(i + 4, x, y)
+#define EXPAND_16_BRANCHES(i, x, y)   EXPAND_8_BRANCHES(i, x, y)    EXPAND_8_BRANCHES(i + 8, x, y)
+#define EXPAND_32_BRANCHES(i, x, y)   EXPAND_16_BRANCHES(i, x, y)   EXPAND_16_BRANCHES(i + 16, x, y)
+#define EXPAND_64_BRANCHES(i, x, y)   EXPAND_32_BRANCHES(i, x, y)   EXPAND_32_BRANCHES(i + 32, x, y)
+#define EXPAND_128_BRANCHES(i, x, y)  EXPAND_64_BRANCHES(i, x, y)   EXPAND_64_BRANCHES(i + 64, x, y)
+#define EXPAND_256_BRANCHES(i, x, y)  EXPAND_128_BRANCHES(i, x, y)  EXPAND_128_BRANCHES(i + 128, x, y)
+#define EXPAND_512_BRANCHES(i, x, y)  EXPAND_256_BRANCHES(i, x, y)  EXPAND_256_BRANCHES(i + 256, x, y)
+#define EXPAND_1024_BRANCHES(i, x, y) EXPAND_512_BRANCHES(i, x, y)  EXPAND_512_BRANCHES(i + 512, x, y)
+#define EXPAND_2048_BRANCHES(i, x, y) EXPAND_1024_BRANCHES(i, x, y) EXPAND_1024_BRANCHES(i + 1024, x, y)
+#define EXPAND_4096_BRANCHES(i, x, y) EXPAND_2048_BRANCHES(i, x, y) EXPAND_2048_BRANCHES(i + 2048, x, y)
+
+unsigned cfg_long_chain_many_preds(unsigned x) {
+  unsigned y = 0;
+#define BRANCH(i, x, y) if ((x % 13171) < i) { int var = x / 13171; y ^= var; } else
+  EXPAND_4096_BRANCHES(1, x, y);
+#undef BRANCH
+  int var = x / 13171; y^= var;
+  return y;
+}
diff --git a/clang/INPUTS/cfg-nested-switches.c b/clang/INPUTS/cfg-nested-switches.c
new file mode 100644
index 0000000..3db10b4
--- /dev/null
+++ b/clang/INPUTS/cfg-nested-switches.c
@@ -0,0 +1,36 @@
+#define EXPAND_2_INNER_CASES(i, x, y)    INNER_CASE(i, x, y);             INNER_CASE(i + 1, x, y);
+#define EXPAND_4_INNER_CASES(i, x, y)    EXPAND_2_INNER_CASES(i, x, y)    EXPAND_2_INNER_CASES(i + 2, x, y)
+#define EXPAND_8_INNER_CASES(i, x, y)    EXPAND_4_INNER_CASES(i, x, y)    EXPAND_4_INNER_CASES(i + 4, x, y)
+#define EXPAND_16_INNER_CASES(i, x, y)   EXPAND_8_INNER_CASES(i, x, y)    EXPAND_8_INNER_CASES(i + 8, x, y)
+#define EXPAND_32_INNER_CASES(i, x, y)   EXPAND_16_INNER_CASES(i, x, y)   EXPAND_16_INNER_CASES(i + 16, x, y)
+#define EXPAND_64_INNER_CASES(i, x, y)   EXPAND_32_INNER_CASES(i, x, y)   EXPAND_32_INNER_CASES(i + 32, x, y)
+
+#define EXPAND_2_OUTER_CASES(i, x, y)    OUTER_CASE(i, x, y);             OUTER_CASE(i + 1, x, y);
+#define EXPAND_4_OUTER_CASES(i, x, y)    EXPAND_2_OUTER_CASES(i, x, y)    EXPAND_2_OUTER_CASES(i + 2, x, y)
+#define EXPAND_8_OUTER_CASES(i, x, y)    EXPAND_4_OUTER_CASES(i, x, y)    EXPAND_4_OUTER_CASES(i + 4, x, y)
+#define EXPAND_16_OUTER_CASES(i, x, y)   EXPAND_8_OUTER_CASES(i, x, y)    EXPAND_8_OUTER_CASES(i + 8, x, y)
+#define EXPAND_32_OUTER_CASES(i, x, y)   EXPAND_16_OUTER_CASES(i, x, y)   EXPAND_16_OUTER_CASES(i + 16, x, y)
+#define EXPAND_64_OUTER_CASES(i, x, y)   EXPAND_32_OUTER_CASES(i, x, y)   EXPAND_32_OUTER_CASES(i + 32, x, y)
+
+// Rather than a single monstrous fan-out, this fans out in smaller increments,
+// but to a similar size.
+unsigned cfg_nested_switch(int x) {
+  unsigned y = 0;
+  while (x > 0) {
+    switch (x) {
+#define INNER_CASE(i, x, y) \
+          case i: { int case_var = 3*x + i; y += case_var - 1; break; }
+#define OUTER_CASE(i, x, y) \
+      case i: { \
+        int case_var = y >> 8; \
+        switch (case_var) { \
+          EXPAND_64_INNER_CASES(0, x, y); \
+        } \
+        break; \
+      }
+EXPAND_64_OUTER_CASES(0, x, y);
+    }
+    --x;
+  }
+  return y;
+}
diff --git a/clang/INPUTS/cfg-nested-var-scopes.cpp b/clang/INPUTS/cfg-nested-var-scopes.cpp
new file mode 100644
index 0000000..0944ec2
--- /dev/null
+++ b/clang/INPUTS/cfg-nested-var-scopes.cpp
@@ -0,0 +1,59 @@
+// Hammer the CFG with large numbers of overlapping variable scopes, which
+// implicit destructors triggered at each edge.
+
+#define EXPAND_BASIC_STRUCT(i) struct X##i { X##i(int); ~X##i(); };
+#define EXPAND_NORET_STRUCT(i) struct X##i { X##i(int); ~X##i() __attribute__((noreturn)); };
+EXPAND_BASIC_STRUCT(0000); EXPAND_NORET_STRUCT(0001);
+EXPAND_BASIC_STRUCT(0010); EXPAND_BASIC_STRUCT(0011);
+EXPAND_BASIC_STRUCT(0100); EXPAND_NORET_STRUCT(0101);
+EXPAND_NORET_STRUCT(0110); EXPAND_BASIC_STRUCT(0111);
+EXPAND_BASIC_STRUCT(1000); EXPAND_NORET_STRUCT(1001);
+EXPAND_BASIC_STRUCT(1010); EXPAND_BASIC_STRUCT(1011);
+EXPAND_NORET_STRUCT(1100); EXPAND_NORET_STRUCT(1101);
+EXPAND_BASIC_STRUCT(1110); EXPAND_BASIC_STRUCT(1111);
+
+#define EXPAND_2_VARS(c, i, x)  const X##i var_##c##_##i##0(x), &var_##c##_##i##1 = X##i(x)
+#define EXPAND_4_VARS(c, i, x)  EXPAND_2_VARS(c, i##0, x);  EXPAND_2_VARS(c, i##1, x)
+#define EXPAND_8_VARS(c, i, x)  EXPAND_4_VARS(c, i##0, x);  EXPAND_4_VARS(c, i##1, x)
+#define EXPAND_16_VARS(c, i, x) EXPAND_8_VARS(c, i##0, x);  EXPAND_8_VARS(c, i##1, x)
+#define EXPAND_32_VARS(c, x)    EXPAND_16_VARS(c, 0, x);    EXPAND_16_VARS(c, 1, x)
+
+#define EXPAND_2_INNER_CASES(i, x, y)    INNER_CASE(i, x, y);             INNER_CASE(i + 1, x, y);
+#define EXPAND_4_INNER_CASES(i, x, y)    EXPAND_2_INNER_CASES(i, x, y)    EXPAND_2_INNER_CASES(i + 2, x, y)
+#define EXPAND_8_INNER_CASES(i, x, y)    EXPAND_4_INNER_CASES(i, x, y)    EXPAND_4_INNER_CASES(i + 4, x, y)
+#define EXPAND_16_INNER_CASES(i, x, y)   EXPAND_8_INNER_CASES(i, x, y)    EXPAND_8_INNER_CASES(i + 8, x, y)
+#define EXPAND_32_INNER_CASES(i, x, y)   EXPAND_16_INNER_CASES(i, x, y)   EXPAND_16_INNER_CASES(i + 16, x, y)
+
+#define EXPAND_2_OUTER_CASES(i, x, y)    OUTER_CASE(i, x, y);             OUTER_CASE(i + 1, x, y);
+#define EXPAND_4_OUTER_CASES(i, x, y)    EXPAND_2_OUTER_CASES(i, x, y)    EXPAND_2_OUTER_CASES(i + 2, x, y)
+#define EXPAND_8_OUTER_CASES(i, x, y)    EXPAND_4_OUTER_CASES(i, x, y)    EXPAND_4_OUTER_CASES(i + 4, x, y)
+#define EXPAND_16_OUTER_CASES(i, x, y)   EXPAND_8_OUTER_CASES(i, x, y)    EXPAND_8_OUTER_CASES(i + 8, x, y)
+#define EXPAND_32_OUTER_CASES(i, x, y)   EXPAND_16_OUTER_CASES(i, x, y)   EXPAND_16_OUTER_CASES(i + 16, x, y)
+
+unsigned cfg_nested_vars(int x) {
+  int y = 0;
+  while (x > 0) {
+    EXPAND_32_VARS(a, x);
+    switch (x) {
+#define INNER_CASE(i, x, y) \
+          case i: { \
+            int case_var = 3*x + i; \
+            EXPAND_32_VARS(c, case_var); \
+            y += case_var - 1; \
+            break; \
+          }
+#define OUTER_CASE(i, x, y) \
+      case i: { \
+        int case_var = y >> 8; \
+        EXPAND_32_VARS(b, y); \
+        switch (case_var) { \
+          EXPAND_32_INNER_CASES(0, x, y); \
+        } \
+        break; \
+      }
+EXPAND_32_OUTER_CASES(0, x, y);
+    }
+    --x;
+  }
+  return y;
+}
diff --git a/clang/INPUTS/iostream.cc b/clang/INPUTS/iostream.cc
new file mode 100644
index 0000000..eb12fc9
--- /dev/null
+++ b/clang/INPUTS/iostream.cc
@@ -0,0 +1,5 @@
+// clang -I/usr/include/c++/4.0.0 -I/usr/include/c++/4.0.0/powerpc-apple-darwin8 -I/usr/include/c++/4.0.0/backward INPUTS/iostream.cc -Eonly
+
+#include <iostream>
+
+#include <stdint.h>
diff --git a/clang/INPUTS/macro_pounder_fn.c b/clang/INPUTS/macro_pounder_fn.c
new file mode 100644
index 0000000..73f40a1
--- /dev/null
+++ b/clang/INPUTS/macro_pounder_fn.c
@@ -0,0 +1,17 @@
+
+// This pounds on macro expansion for performance reasons.  This is currently
+// heavily constrained by darwin's malloc.
+
+// Function-like macros.
+#define A0(A, B) A B
+#define A1(A, B) A0(A,B) A0(A,B) A0(A,B) A0(A,B) A0(A,B) A0(A,B)
+#define A2(A, B) A1(A,B) A1(A,B) A1(A,B) A1(A,B) A1(A,B) A1(A,B)
+#define A3(A, B) A2(A,B) A2(A,B) A2(A,B) A2(A,B) A2(A,B) A2(A,B)
+#define A4(A, B) A3(A,B) A3(A,B) A3(A,B) A3(A,B) A3(A,B) A3(A,B)
+#define A5(A, B) A4(A,B) A4(A,B) A4(A,B) A4(A,B) A4(A,B) A4(A,B)
+#define A6(A, B) A5(A,B) A5(A,B) A5(A,B) A5(A,B) A5(A,B) A5(A,B)
+#define A7(A, B) A6(A,B) A6(A,B) A6(A,B) A6(A,B) A6(A,B) A6(A,B)
+#define A8(A, B) A7(A,B) A7(A,B) A7(A,B) A7(A,B) A7(A,B) A7(A,B)
+
+A8(a, b)
+
diff --git a/clang/INPUTS/macro_pounder_obj.c b/clang/INPUTS/macro_pounder_obj.c
new file mode 100644
index 0000000..d2465f3
--- /dev/null
+++ b/clang/INPUTS/macro_pounder_obj.c
@@ -0,0 +1,16 @@
+
+// This pounds on macro expansion for performance reasons.  This is currently
+// heavily constrained by darwin's malloc.
+
+// Object-like expansions
+#define A0 a b
+#define A1 A0 A0 A0 A0 A0 A0
+#define A2 A1 A1 A1 A1 A1 A1
+#define A3 A2 A2 A2 A2 A2 A2
+#define A4 A3 A3 A3 A3 A3 A3
+#define A5 A4 A4 A4 A4 A4 A4
+#define A6 A5 A5 A5 A5 A5 A5
+#define A7 A6 A6 A6 A6 A6 A6
+#define A8 A7 A7 A7 A7 A7 A7
+
+A8
diff --git a/clang/INPUTS/stpcpy-test.c b/clang/INPUTS/stpcpy-test.c
new file mode 100644
index 0000000..b96a806
--- /dev/null
+++ b/clang/INPUTS/stpcpy-test.c
@@ -0,0 +1,47 @@
+#define __extension__
+
+#define __stpcpy(dest, src) (__extension__ (__builtin_constant_p (src) ? (__string2_1bptr_p (src) && strlen (src) + 1 <= 8 ? __stpcpy_small (dest, __stpcpy_args (src), strlen (src) + 1) : ((char *) __mempcpy (dest, src, strlen (src) + 1) - 1)) : __stpcpy (dest, src)))
+#define stpcpy(dest, src) __stpcpy (dest, src)
+#define __stpcpy_args(src) __extension__ __STRING2_SMALL_GET16 (src, 0), __extension__ __STRING2_SMALL_GET16 (src, 4), __extension__ __STRING2_SMALL_GET32 (src, 0), __extension__ __STRING2_SMALL_GET32 (src, 4)
+
+#define __mempcpy(dest, src, n) (__extension__ (__builtin_constant_p (src) && __builtin_constant_p (n) && __string2_1bptr_p (src) && n <= 8 ? __mempcpy_small (dest, __mempcpy_args (src), n) : __mempcpy (dest, src, n)))
+#define mempcpy(dest, src, n) __mempcpy (dest, src, n)
+#define __mempcpy_args(src) ((char *) (src))[0], ((char *) (src))[2], ((char *) (src))[4], ((char *) (src))[6], __extension__ __STRING2_SMALL_GET16 (src, 0), __extension__ __STRING2_SMALL_GET16 (src, 4), __extension__ __STRING2_SMALL_GET32 (src, 0), __extension__ __STRING2_SMALL_GET32 (src, 4)
+
+#define __STRING2_SMALL_GET16(src, idx) (((__const unsigned char *) (__const char *) (src))[idx + 1] << 8 | ((__const unsigned char *) (__const char *) (src))[idx])
+
+#define __STRING2_SMALL_GET32(src, idx) (((((__const unsigned char *) (__const char *) (src))[idx + 3] << 8 | ((__const unsigned char *) (__const char *) (src))[idx + 2]) << 8 | ((__const unsigned char *) (__const char *) (src))[idx + 1]) << 8 | ((__const unsigned char *) (__const char *) (src))[idx])
+
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)
+stpcpy (stpcpy (stpcpy (stpcpy (a, b), c), d), e)