diff options
| author | Dale Johannesen <dalej@apple.com> | 2009-11-20 22:16:40 +0000 |
|---|---|---|
| committer | Dale Johannesen <dalej@apple.com> | 2009-11-20 22:16:40 +0000 |
| commit | 5ca124691bc81ed013593151c500d8104f7068dd (patch) | |
| tree | 57c0c4831190eb4ba56a9e69d389323aec7476ed /test/CodeGen | |
| parent | 1bbf6d1a6f850001498b51377eccf77bd070200d (diff) | |
| download | llvm-5ca124691bc81ed013593151c500d8104f7068dd.tar.gz llvm-5ca124691bc81ed013593151c500d8104f7068dd.tar.bz2 llvm-5ca124691bc81ed013593151c500d8104f7068dd.tar.xz | |
Remove an incorrect overaggressive optimization
(PPC specific).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89496 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen')
| -rw-r--r-- | test/CodeGen/PowerPC/rlwimi-keep-rsh.ll | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/test/CodeGen/PowerPC/rlwimi-keep-rsh.ll b/test/CodeGen/PowerPC/rlwimi-keep-rsh.ll new file mode 100644 index 0000000000..7bce01c00a --- /dev/null +++ b/test/CodeGen/PowerPC/rlwimi-keep-rsh.ll @@ -0,0 +1,28 @@ +; RUN: llc < %s -march=ppc32 -mtriple=powerpc-apple-darwin | FileCheck %s +; Formerly dropped the RHS of %tmp6 when constructing rlwimi. +; 7346117 + +@foo = external global i32 + +define void @xxx(i32 %a, i32 %b, i32 %c, i32 %d) nounwind optsize { +; CHECK: _xxx: +; CHECK: or +; CHECK: and +; CHECK: rlwimi +entry: + %tmp0 = ashr i32 %d, 31 + %tmp1 = and i32 %tmp0, 255 + %tmp2 = xor i32 %tmp1, 255 + %tmp3 = ashr i32 %b, 31 + %tmp4 = ashr i32 %a, 4 + %tmp5 = or i32 %tmp3, %tmp4 + %tmp6 = and i32 %tmp2, %tmp5 + %tmp7 = shl i32 %c, 8 + %tmp8 = or i32 %tmp6, %tmp7 + store i32 %tmp8, i32* @foo, align 4 + br label %return + +return: + ret void +; CHECK: blr +}
\ No newline at end of file |