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author | Carlo Zancanaro <carlo@pc-4w14-0.cs.usyd.edu.au> | 2012-10-15 17:10:06 +1100 |
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committer | Carlo Zancanaro <carlo@pc-4w14-0.cs.usyd.edu.au> | 2012-10-15 17:10:06 +1100 |
commit | be1de4be954c80875ad4108e0a33e8e131b2f2c0 (patch) | |
tree | 1fbbecf276bf7c7bdcbb4dd446099d6d90eaa516 /clang/test/CodeGen/alignment.c | |
parent | c4626a62754862d20b41e8a46a3574264ea80e6d (diff) | |
parent | f1bd2e48c5324d3f7cda4090c87f8a5b6f463ce2 (diff) |
Merge branch 'master' of ssh://bitbucket.org/czan/honours
Diffstat (limited to 'clang/test/CodeGen/alignment.c')
-rw-r--r-- | clang/test/CodeGen/alignment.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/clang/test/CodeGen/alignment.c b/clang/test/CodeGen/alignment.c new file mode 100644 index 0000000..8882c91 --- /dev/null +++ b/clang/test/CodeGen/alignment.c @@ -0,0 +1,59 @@ +// RUN: %clang_cc1 -emit-llvm %s -o - | FileCheck %s + +__attribute((aligned(16))) float a[128]; +union {int a[4]; __attribute((aligned(16))) float b[4];} b; + +// CHECK: @a = {{.*}}zeroinitializer, align 16 +// CHECK: @b = {{.*}}zeroinitializer, align 16 + + + +// PR5279 - Reduced alignment on typedef. +typedef int myint __attribute__((aligned(1))); + +void test1(myint *p) { + *p = 0; +} +// CHECK: @test1( +// CHECK: store i32 0, i32* {{.*}}, align 1 +// CHECK: ret void + +int test1a(myint *p) { + return *p; +} +// CHECK: @test1a( +// CHECK: load i32* {{.*}}, align 1 +// CHECK: ret i32 + + +// PR5279 - Reduced alignment on typedef. +typedef float __attribute__((vector_size(16), aligned(4))) packedfloat4; + +void test2(packedfloat4 *p) { + *p = (packedfloat4) { 3.2f, 2.3f, 0.1f, 0.0f }; +} +// CHECK: @test2( +// CHECK: store <4 x float> {{.*}}, align 4 +// CHECK: ret void + + +// PR5279 - Reduced alignment on typedef. +typedef float __attribute__((ext_vector_type(3), aligned(4))) packedfloat3; +void test3(packedfloat3 *p) { + *p = (packedfloat3) { 3.2f, 2.3f, 0.1f }; +} +// CHECK: @test3( +// CHECK: store <3 x float> {{.*}}, align 4 +// CHECK: ret void + + + +typedef float __attribute__((vector_size(16), aligned(64))) float4align64; + +// rdar://10639962 - Typedef alignment lost in p[]-style dereferencing +void test4(float4align64 *p) { + p[0] = (float4align64){ 3.2f, 2.3f, 0.1f, 0.0f }; +} +// CHECK: @test4( +// CHECK: store <4 x float> {{.*}}, <4 x float>* {{.*}}, align 64 + |