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| author | JF Bastien <jfb@google.com> | 2016-01-26 20:22:42 +0000 |
|---|---|---|
| committer | JF Bastien <jfb@google.com> | 2016-01-26 20:22:42 +0000 |
| commit | 1a6c7608b1f47dadf7adae8dbc1fb8345f7ff15e (patch) | |
| tree | 574ee329cac3ed73909e74f1e955bf5eaf6878ee /llvm/test/CodeGen/WebAssembly | |
| parent | bacf7e4f397f5863e52a0fad4155abd9a6b84b8c (diff) | |
| download | bcm5719-llvm-1a6c7608b1f47dadf7adae8dbc1fb8345f7ff15e.tar.gz bcm5719-llvm-1a6c7608b1f47dadf7adae8dbc1fb8345f7ff15e.zip | |
WebAssembly: don't optimize memcpy/memmove/memcpy to frame index
r258781 optimized memcpy/memmove/memcpy so the intrinsic call can return its first argument, but missed the frame index case. Teach it to ignore that case so C code doesn't assert out in these cases.
llvm-svn: 258851
Diffstat (limited to 'llvm/test/CodeGen/WebAssembly')
| -rw-r--r-- | llvm/test/CodeGen/WebAssembly/mem-intrinsics.ll | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/WebAssembly/mem-intrinsics.ll b/llvm/test/CodeGen/WebAssembly/mem-intrinsics.ll index ba2f1e702af..bb7e8dd26d8 100644 --- a/llvm/test/CodeGen/WebAssembly/mem-intrinsics.ll +++ b/llvm/test/CodeGen/WebAssembly/mem-intrinsics.ll @@ -58,3 +58,14 @@ define void @set_no(i8* %dst, i8 %src, i32 %len) { call void @llvm.memset.p0i8.i32(i8* %dst, i8 %src, i32 %len, i32 1, i1 false) ret void } + +; CHECK-LABEL: frame_index: +; CHECK: i32.call $discard=, memset@FUNCTION, $3, $pop1, $pop0{{$}} +; CHECK: return{{$}} +define void @frame_index() { +entry: + %a = alloca [2048 x i8], align 16 + %0 = getelementptr inbounds [2048 x i8], [2048 x i8]* %a, i32 0, i32 0 + call void @llvm.memset.p0i8.i32(i8* %0, i8 256, i32 1024, i32 16, i1 false) + ret void +} |
