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llvm-project/clang/test/CodeGen/2007-11-07-CopyAggregateAli...

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Migrate most of the rest of test/FrontendC from llvm and migrate most of them to FileCheck. llvm-svn: 136159
2011-07-27 06:17:02 +08:00
// RUN: %clang_cc1 -emit-llvm %s -o - | FileCheck %s
struct A { char s, t, u, v; short a; };
// CHECK: %a = alloca %struct.A, align 2
// CHECK: %b = alloca %struct.A, align 2
Change memcpy/memset/memmove to have dest and source alignments. This is a follow on from a similar LLVM commit: r253511. Note, this was reviewed (and more details are in) http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20151109/312083.html These intrinsics currently have an explicit alignment argument which is required to be a constant integer. It represents the alignment of the source and dest, and so must be the minimum of those. This change allows source and dest to each have their own alignments by using the alignment attribute on their arguments. The alignment argument itself is removed. The only code change to clang is hidden in CGBuilder.h which now passes both dest and source alignment to IRBuilder, instead of taking the minimum of dest and source alignments. Reviewed by Hal Finkel. llvm-svn: 253512
2015-11-19 06:18:45 +08:00
// CHECK: call void @llvm.memcpy.p0i8.p0i8.i{{[0-9]*}}(i8* align 2 %{{[0-9]*}}, i8* align 2 %{{[0-9]*}}, {{.*}}, i1 false)
Migrate most of the rest of test/FrontendC from llvm and migrate most of them to FileCheck. llvm-svn: 136159
2011-07-27 06:17:02 +08:00
void q() { struct A a, b; a = b; }