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

1 files changed, 338 insertions, 0 deletions

diff --git a/clang/utils/OptionalTests/Extra/Runtime/darwin-clang_rt.c b/clang/utils/OptionalTests/Extra/Runtime/darwin-clang_rt.c
new file mode 100644
index 0000000..e527789
--- /dev/null
+++ b/clang/utils/OptionalTests/Extra/Runtime/darwin-clang_rt.c
@@ -0,0 +1,338 @@
+/* This file tests that we can successfully call each compiler-rt function. It is
+   designed to check that the runtime libraries are available for linking and
+   that they contain the expected contents. It is not designed to test the
+   correctness of the individual functions in compiler-rt.
+
+   This test is assumed to be run on a 10.6 machine. The two environment
+   variables below should be set to 10.4 and 10.5 machines which can be directly
+   ssh/rsync'd to in order to actually test the executables can run on the
+   desired targets.
+*/
+
+// RUN: export TENFOUR_X86_MACHINE=localhost
+// RUN: export TENFIVE_X86_MACHINE=localhost
+// RUN: export ARM_MACHINE=localhost
+// RUN: export ARM_SYSROOT=$(xcodebuild -sdk iphoneos -version Path)
+
+// RUN: echo iPhoneOS, ARM, v6, thumb
+// RUN: %clang -isysroot $ARM_SYSROOT -arch armv6 -mthumb -c %s -o %t.o
+// RUN: %clang -isysroot $ARM_SYSROOT -arch armv6 -mthumb -v -Wl,-t,-v -o %t %t.o 1>&2
+// RUN: rsync -arv %t $ARM_MACHINE:/tmp/a.out
+// RUN: ssh $ARM_MACHINE /tmp/a.out
+// RUN: echo
+
+// RUN: echo iPhoneOS, ARM, v6, no-thumb
+// RUN: %clang -isysroot $ARM_SYSROOT -arch armv6 -mno-thumb -c %s -o %t.o
+// RUN: %clang -isysroot $ARM_SYSROOT -arch armv6 -mno-thumb -v -Wl,-t,-v -o %t %t.o 1>&2
+// RUN: rsync -arv %t $ARM_MACHINE:/tmp/a.out
+// RUN: ssh $ARM_MACHINE /tmp/a.out
+// RUN: echo
+
+// RUN: echo iPhoneOS, ARM, v7, thumb
+// RUN: %clang -isysroot $ARM_SYSROOT -arch armv7 -mthumb -c %s -o %t.o
+// RUN: %clang -isysroot $ARM_SYSROOT -arch armv7 -mthumb -v -Wl,-t,-v -o %t %t.o 1>&2
+// RUN: rsync -arv %t $ARM_MACHINE:/tmp/a.out
+// RUN: ssh $ARM_MACHINE /tmp/a.out
+// RUN: echo
+
+// RUN: echo iPhoneOS, ARM, v7, no-thumb
+// RUN: %clang -isysroot $ARM_SYSROOT -arch armv7 -mno-thumb -c %s -o %t.o
+// RUN: %clang -isysroot $ARM_SYSROOT -arch armv7 -mno-thumb -v -Wl,-t,-v -o %t %t.o 1>&2
+// RUN: rsync -arv %t $ARM_MACHINE:/tmp/a.out
+// RUN: ssh $ARM_MACHINE /tmp/a.out
+// RUN: echo
+
+// RUN: echo 10.4, i386
+// RUN: %clang -arch i386 -mmacosx-version-min=10.4 -c %s -o %t.o
+// RUN: %clang -arch i386 -mmacosx-version-min=10.4 -v -Wl,-t,-v -o %t %t.o 1>&2
+// RUN: %t
+// RUN: echo
+
+// RUN: rsync -arv %t $TENFOUR_X86_MACHINE:/tmp/a.out
+// RUN: ssh $TENFOUR_X86_MACHINE /tmp/a.out
+// RUN: echo
+
+// RUX: rsync -arv %t $TENFIVE_X86_MACHINE:/tmp/a.out
+// RUX: ssh $TENFIVE_X86_MACHINE /tmp/a.out
+// RUN: echo
+
+// RUN: echo 10.5, i386
+// RUN: %clang -arch i386 -mmacosx-version-min=10.5 -c %s -o %t.o
+// RUN: %clang -arch i386 -mmacosx-version-min=10.5 -v -Wl,-t,-v -o %t %t.o 1>&2
+// RUN: %t
+// RUN: echo
+
+// RUN: rsync -arv %t $TENFIVE_X86_MACHINE:/tmp/a.out
+// RUN: ssh $TENFIVE_X86_MACHINE /tmp/a.out
+// RUN: echo
+
+// RUN: echo 10.6, i386
+// RUN: %clang -arch i386 -mmacosx-version-min=10.6 -c %s -o %t.o
+// RUN: %clang -arch i386 -mmacosx-version-min=10.6 -v -Wl,-t,-v -o %t %t.o 1>&2
+// RUN: %t
+// RUN: echo
+
+// RUN: echo 10.4, x86_64
+// RUN: %clang -arch x86_64 -mmacosx-version-min=10.4 -c %s -o %t.o
+// RUN: %clang -arch x86_64 -mmacosx-version-min=10.4 -v -Wl,-t,-v -o %t %t.o 1>&2
+// RUN: %t
+// RUN: echo
+
+// RUN: rsync -arv %t $TENFOUR_X86_MACHINE:/tmp/a.out
+// RUN: ssh $TENFOUR_X86_MACHINE /tmp/a.out
+// RUN: echo
+
+// RUN: rsync -arv %t $TENFIVE_X86_MACHINE:/tmp/a.out
+// RUN: ssh $TENFIVE_X86_MACHINE /tmp/a.out
+// RUN: echo
+
+// RUN: echo 10.5, x86_64
+// RUN: %clang -arch x86_64 -mmacosx-version-min=10.5 -c %s -o %t.o
+// RUN: %clang -arch x86_64 -mmacosx-version-min=10.5 -v -Wl,-t,-v -o %t %t.o 1>&2
+// RUN: %t
+// RUN: echo
+
+// RUN: rsync -arv %t $TENFIVE_X86_MACHINE:/tmp/a.out
+// RUN: ssh $TENFIVE_X86_MACHINE /tmp/a.out
+// RUN: echo
+
+// RUN: echo 10.6, x86_64
+// RUN: %clang -arch x86_64 -mmacosx-version-min=10.6 -c %s -o %t.o
+// RUN: %clang -arch x86_64 -mmacosx-version-min=10.6 -v -Wl,-t,-v -o %t %t.o 1>&2
+// RUN: %t
+// RUN: echo
+
+#include <assert.h>
+#include <stdio.h>
+#include <sys/utsname.h>
+
+typedef int si_int;
+typedef unsigned su_int;
+
+typedef long long di_int;
+typedef unsigned long long du_int;
+
+// Integral bit manipulation
+
+di_int __ashldi3(di_int a, si_int b);      // a << b
+di_int __ashrdi3(di_int a, si_int b);      // a >> b  arithmetic (sign fill)
+di_int __lshrdi3(di_int a, si_int b);      // a >> b  logical    (zero fill)
+
+si_int __clzsi2(si_int a);  // count leading zeros
+si_int __clzdi2(di_int a);  // count leading zeros
+si_int __ctzsi2(si_int a);  // count trailing zeros
+si_int __ctzdi2(di_int a);  // count trailing zeros
+
+si_int __ffsdi2(di_int a);  // find least significant 1 bit
+
+si_int __paritysi2(si_int a);  // bit parity
+si_int __paritydi2(di_int a);  // bit parity
+
+si_int __popcountsi2(si_int a);  // bit population
+si_int __popcountdi2(di_int a);  // bit population
+
+// Integral arithmetic
+
+di_int __negdi2    (di_int a);                         // -a
+di_int __muldi3    (di_int a, di_int b);               // a * b
+di_int __divdi3    (di_int a, di_int b);               // a / b   signed
+du_int __udivdi3   (du_int a, du_int b);               // a / b   unsigned
+di_int __moddi3    (di_int a, di_int b);               // a % b   signed
+du_int __umoddi3   (du_int a, du_int b);               // a % b   unsigned
+du_int __udivmoddi4(du_int a, du_int b, du_int* rem);  // a / b, *rem = a % b
+
+//  Integral arithmetic with trapping overflow
+
+si_int __absvsi2(si_int a);           // abs(a)
+di_int __absvdi2(di_int a);           // abs(a)
+
+si_int __negvsi2(si_int a);           // -a
+di_int __negvdi2(di_int a);           // -a
+
+si_int __addvsi3(si_int a, si_int b);  // a + b
+di_int __addvdi3(di_int a, di_int b);  // a + b
+
+si_int __subvsi3(si_int a, si_int b);  // a - b
+di_int __subvdi3(di_int a, di_int b);  // a - b
+
+si_int __mulvsi3(si_int a, si_int b);  // a * b
+di_int __mulvdi3(di_int a, di_int b);  // a * b
+
+//  Integral comparison: a  < b -> 0
+//                       a == b -> 1
+//                       a  > b -> 2
+
+si_int __cmpdi2 (di_int a, di_int b);
+si_int __ucmpdi2(du_int a, du_int b);
+
+//  Integral / floating point conversion
+
+di_int __fixsfdi(      float a);
+di_int __fixdfdi(     double a);
+di_int __fixxfdi(long double a);
+
+su_int __fixunssfsi(      float a);
+su_int __fixunsdfsi(     double a);
+su_int __fixunsxfsi(long double a);
+
+du_int __fixunssfdi(      float a);
+du_int __fixunsdfdi(     double a);
+du_int __fixunsxfdi(long double a);
+
+float       __floatdisf(di_int a);
+double      __floatdidf(di_int a);
+long double __floatdixf(di_int a);
+
+float       __floatundisf(du_int a);
+double      __floatundidf(du_int a);
+long double __floatundixf(du_int a);
+
+//  Floating point raised to integer power
+
+float       __powisf2(      float a, si_int b);  // a ^ b
+double      __powidf2(     double a, si_int b);  // a ^ b
+long double __powixf2(long double a, si_int b);  // a ^ b
+
+//  Complex arithmetic
+
+//  (a + ib) * (c + id)
+
+      float _Complex __mulsc3( float a,  float b,  float c,  float d);
+     double _Complex __muldc3(double a, double b, double c, double d);
+long double _Complex __mulxc3(long double a, long double b,
+                              long double c, long double d);
+
+//  (a + ib) / (c + id)
+
+      float _Complex __divsc3( float a,  float b,  float c,  float d);
+     double _Complex __divdc3(double a, double b, double c, double d);
+long double _Complex __divxc3(long double a, long double b,
+                              long double c, long double d);
+
+#ifndef __arm
+#define HAS_LONG_DOUBLE
+#endif
+
+int main(int argc, char **argv) {
+  du_int du_tmp;
+  struct utsname name;
+#ifdef __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__
+  const char *target_name = "OS X";
+  unsigned target_version = __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__;
+  unsigned target_maj = target_version / 100;
+  unsigned target_min = (target_version / 10) % 10;
+  unsigned target_micro = target_version % 10;
+#else
+  const char *target_name = "iPhoneOS";
+  unsigned target_version = __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__;
+  unsigned target_maj = target_version / 10000;
+  unsigned target_min = (target_version / 100) % 100;
+  unsigned target_micro = target_version % 100;
+#endif
+
+  if (uname(&name))
+    return 1;
+
+  fprintf(stderr, "%s: clang_rt test:\n", argv[0]);
+  fprintf(stderr, "  target  : %s %d.%d.%d\n\n", target_name,
+          target_maj, target_min, target_micro);
+  fprintf(stderr, "  sysname : %s\n", name.sysname);
+  fprintf(stderr, "  nodename: %s\n", name.nodename);
+  fprintf(stderr, "  release : %s\n", name.release);
+  fprintf(stderr, "  version : %s\n", name.version);
+  fprintf(stderr, "  machine : %s\n", name.machine);
+
+  assert(__ashldi3(1, 1) == 2);
+  assert(__ashrdi3(2, 1) == 1);
+  assert(__lshrdi3(2, 1) == 1);
+  assert(__clzsi2(1) == 31);
+  assert(__clzdi2(1) == 63);
+  assert(__ctzsi2(2) == 1);
+  assert(__ctzdi2(2) == 1);
+  assert(__ffsdi2(12) == 3);
+  assert(__paritysi2(13) == 1);
+  assert(__paritydi2(13) == 1);
+  assert(__popcountsi2(13) == 3);
+  assert(__popcountdi2(13) == 3);
+  assert(__negdi2(3) == -3);
+  assert(__muldi3(2,2) == 4);
+  assert(__divdi3(-4,2) == -2);
+  assert(__udivdi3(4,2) == 2);
+  assert(__moddi3(3,2) == 1);
+  assert(__umoddi3(3,2) == 1);
+  assert(__udivmoddi4(5,2,&du_tmp) == 2 && du_tmp == 1);
+  assert(__absvsi2(-2) == 2);
+  assert(__absvdi2(-2) == 2);
+  assert(__negvsi2(2) == -2);
+  assert(__negvdi2(2) == -2);
+  assert(__addvsi3(2, 3) == 5);
+  assert(__addvdi3(2, 3) == 5);
+  assert(__subvsi3(2, 3) == -1);
+  assert(__subvdi3(2, 3) == -1);
+  assert(__mulvsi3(2, 3) == 6);
+  assert(__mulvdi3(2, 3) == 6);
+  assert(__cmpdi2(3, 2) == 2);
+  assert(__ucmpdi2(3, 2) == 2);
+  assert(__fixsfdi(2.0) == 2);
+  assert(__fixdfdi(2.0) == 2);
+  assert(__fixunssfsi(2.0) == 2);
+  assert(__fixunsdfsi(2.0) == 2);
+  assert(__fixunssfdi(2.0) == 2);
+  assert(__fixunsdfdi(2.0) == 2);
+  assert(__floatdisf(2) == 2.0);
+  assert(__floatdidf(2) == 2.0);
+  assert(__floatundisf(2) == 2.0);
+  assert(__floatundidf(2) == 2.0);
+  assert(__powisf2(2.0, 2) == 4.0);
+  assert(__powidf2(2.0, 2) == 4.0);
+
+  // FIXME: Clang/LLVM seems to be miscompiling _Complex currently, probably an
+  // ABI issue.
+#ifndef __arm
+  {
+    _Complex float a = __mulsc3(1.0, 2.0, 4.0, 8.0);
+    _Complex float b = (-12.0 + 16.0j);
+    fprintf(stderr, "a: (%f + %f), b: (%f + %f)\n",
+            __real a, __imag a, __real b, __imag b);
+  }
+  assert(__mulsc3(1.0, 2.0, 4.0, 8.0) == (-12.0 + 16.0j));
+  assert(__muldc3(1.0, 2.0, 4.0, 8.0) == (-12.0 + 16.0j));
+  assert(__divsc3(1.0, 2.0, 4.0, 8.0) == (0.25 + 0j));
+  assert(__divdc3(1.0, 2.0, 4.0, 8.0) == (0.25 + 0j));
+#endif
+
+#ifdef HAS_LONG_DOUBLE
+  assert(__divxc3(1.0, 2.0, 4.0, 8.0) == (0.25 + 0j));
+  assert(__fixunsxfdi(2.0) == 2);
+  assert(__fixunsxfsi(2.0) == 2);
+  assert(__fixxfdi(2.0) == 2);
+  assert(__floatdixf(2) == 2.0);
+  assert(__floatundixf(2) == 2);
+  assert(__mulxc3(1.0, 2.0, 4.0, 8.0) == (-12.0 + 16.0j));
+  assert(__powixf2(2.0, 2) == 4.0);
+#endif
+
+  // Test some calls which are used on armv6/thumb. The calls/prototypes are
+  // fake, it would be nice to test correctness, but mostly we just want to
+  // make sure we resolve symbols correctly.
+#if defined(__arm) && defined(__ARM_ARCH_6K__) && defined(__thumb__)
+  if (argc == 100) {
+    extern void __restore_vfp_d8_d15_regs(void), __save_vfp_d8_d15_regs(void);
+    extern void __switch8(void), __switchu8(void),
+      __switch16(void), __switch32(void);
+    extern void __addsf3vfp(void);
+
+    __addsf3vfp();
+    __restore_vfp_d8_d15_regs();
+    __save_vfp_d8_d15_regs();
+    __switch8();
+    __switchu8();
+    __switch16();
+    __switch32();
+  }
+#endif
+
+  fprintf(stderr, "    OK!\n");
+
+  return 0;
+}