From 222e2a7620e6520ffaf4fc4e69d79c18da31542e Mon Sep 17 00:00:00 2001 From: "Zancanaro; Carlo" Date: Mon, 24 Sep 2012 09:58:17 +1000 Subject: Add the clang library to the repo (with some of my changes, too). --- clang/test/CodeGen/bitfield.c | 74 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 clang/test/CodeGen/bitfield.c (limited to 'clang/test/CodeGen/bitfield.c') diff --git a/clang/test/CodeGen/bitfield.c b/clang/test/CodeGen/bitfield.c new file mode 100644 index 0000000..dea5e43 --- /dev/null +++ b/clang/test/CodeGen/bitfield.c @@ -0,0 +1,74 @@ +// RUN: %clang_cc1 -triple i386-unknown-unknown %s -emit-llvm -o %t -O3 +// RUN: grep "ret i32" %t | count 4 +// RUN: grep "ret i32 1" %t | count 4 + +static int f0(int n) { + struct s0 { + int a : 30; + int b : 2; + long long c : 31; + } x = { 0xdeadbeef, 0xdeadbeef, 0xdeadbeef }; + + x.a += n; + x.b += n; + x.c += n; + + return x.a + x.b + x.c; +} + +int g0(void) { + return f0(-1) + 44335655; +} + +static int f1(void) { + struct s1 { + int a:13; + char b; + unsigned short c:7; + } x; + + x.a = -40; + x.b = 10; + x.c = 15; + + return x.a + x.b + x.c; +} + +int g1(void) { + return f1() + 16; +} + +static int f2(void) { + struct s2 { + short a[3]; + int b : 15; + } x; + + x.a[0] = x.a[1] = x.a[2] = -40; + x.b = 10; + + return x.b; +} + +int g2(void) { + return f2() - 9; +} + +static int f3(int n) { + struct s3 { + unsigned a:16; + unsigned b:28 __attribute__ ((packed)); + } x = { 0xdeadbeef, 0xdeadbeef }; + struct s4 { + signed a:16; + signed b:28 __attribute__ ((packed)); + } y; + y.a = -0x56789abcL; + y.b = -0x56789abcL; + return ((y.a += x.a += n) + + (y.b += x.b += n)); +} + +int g3(void) { + return f3(20) + 130725747; +} -- cgit v1.2.3