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author | Chris Lattner <sabre@nondot.org> | 2011-12-19 21:16:08 +0000 |
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committer | Chris Lattner <sabre@nondot.org> | 2011-12-19 21:16:08 +0000 |
commit | 4cac9e169bd85bea592a49a0f4a0d2f37260b29a (patch) | |
tree | cc7521b2b5d705557c6a6e2053af6499c80623c3 /test/CodeGen/alignment.c | |
parent | 4f1aefce52f3878cb5afeed6fdad926c7b4da603 (diff) |
Fix PR5279 - don't sliently drop alignment information on stores of types that have alignment less than the natural alignment of the type when it comes from a typedef.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146908 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/alignment.c')
-rw-r--r-- | test/CodeGen/alignment.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/test/CodeGen/alignment.c b/test/CodeGen/alignment.c index 831e850f88..8e5931859a 100644 --- a/test/CodeGen/alignment.c +++ b/test/CodeGen/alignment.c @@ -5,3 +5,37 @@ 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 + + +// 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 + |