From 6e938effaaf2016eb76e1b73aba2aa38a245cb70 Mon Sep 17 00:00:00 2001 From: Daniel Neilson Date: Fri, 19 Jan 2018 17:12:54 +0000 Subject: Change memcpy/memove/memset to have dest and source alignment attributes (Step 1). Summary: Upstream LLVM is changing the the prototypes of the @llvm.memcpy/memmove/memset intrinsics. This change updates the Clang tests for this change. The @llvm.memcpy/memmove/memset intrinsics currently have an explicit argument which is required to be a constant integer. It represents the alignment of the dest (and source), and so must be the minimum of the actual alignment of the two. This change removes the alignment argument in favour of placing the alignment attribute on the source and destination pointers of the memory intrinsic call. For example, code which used to read: call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* %src, i32 100, i32 4, i1 false) will now read call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 %dest, i8* align 4 %src, i32 100, i1 false) At this time the source and destination alignments must be the same (Step 1). Step 2 of the change, to be landed shortly, will relax that contraint and allow the source and destination to have different alignments. llvm-svn: 322964 --- clang/test/CodeGenCXX/constructor-direct-call.cpp | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'clang/test/CodeGenCXX/constructor-direct-call.cpp') diff --git a/clang/test/CodeGenCXX/constructor-direct-call.cpp b/clang/test/CodeGenCXX/constructor-direct-call.cpp index 9567d0968da..bcddc0fa7a4 100644 --- a/clang/test/CodeGenCXX/constructor-direct-call.cpp +++ b/clang/test/CodeGenCXX/constructor-direct-call.cpp @@ -9,7 +9,7 @@ void f1() { Test1 var; var.Test1::Test1(); - // CHECK: call void @llvm.memcpy.p0i8.p0i8.i32(i8* %{{.*}}, i8* %{{.*}}, i32 4, i32 4, i1 false) + // CHECK: call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 %{{.*}}, i8* align 4 %{{.*}}, i32 4, i1 false) var.Test1::Test1(var); } @@ -28,7 +28,7 @@ void f2() { // CHECK-NEXT: call x86_thiscallcc void @_ZN5Test2C1Ev(%class.Test2* %var) var.Test2::Test2(); - // CHECK: call void @llvm.memcpy.p0i8.p0i8.i32(i8* %{{.*}}, i8* %{{.*}}, i32 8, i32 4, i1 false) + // CHECK: call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 %{{.*}}, i8* align 4 %{{.*}}, i32 8, i1 false) var.Test2::Test2(var); } -- cgit v1.2.3