diff options
| author | Eli Friedman <eli.friedman@gmail.com> | 2009-08-19 08:46:10 +0000 |
|---|---|---|
| committer | Eli Friedman <eli.friedman@gmail.com> | 2009-08-19 08:46:10 +0000 |
| commit | d68eea2b6d5ff284d3c7371c4f201c25ca030747 (patch) | |
| tree | 8905a2711909abba1b9214b7d5a03fc07ba5b1b9 /test | |
| parent | 6793dd9769047706acf34420586716450344fb66 (diff) | |
| download | llvm-d68eea2b6d5ff284d3c7371c4f201c25ca030747.tar.gz llvm-d68eea2b6d5ff284d3c7371c4f201c25ca030747.tar.bz2 llvm-d68eea2b6d5ff284d3c7371c4f201c25ca030747.tar.xz | |
PR4737: Fix a nasty bug in load narrowing with non-power-of-two types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79415 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/X86/2009-08-19-LoadNarrowingMiscompile.ll | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/test/CodeGen/X86/2009-08-19-LoadNarrowingMiscompile.ll b/test/CodeGen/X86/2009-08-19-LoadNarrowingMiscompile.ll new file mode 100644 index 0000000000..447b06483d --- /dev/null +++ b/test/CodeGen/X86/2009-08-19-LoadNarrowingMiscompile.ll @@ -0,0 +1,15 @@ +; RUN: llvm-as < %s | llc -march=x86 | FileCheck %s + +@a = external global i96, align 4 +@b = external global i64, align 8 + +define void @c() nounwind { +; CHECK: movl a+8, %eax + %srcval1 = load i96* @a, align 4 + %sroa.store.elt2 = lshr i96 %srcval1, 64 + %tmp = trunc i96 %sroa.store.elt2 to i64 +; CHECK: movl %eax, b +; CHECK: movl $0, b+4 + store i64 %tmp, i64* @b, align 8 + ret void +} |