diff options
Diffstat (limited to 'test/CodeGen')
| -rw-r--r-- | test/CodeGen/X86/jump_sign.ll | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/test/CodeGen/X86/jump_sign.ll b/test/CodeGen/X86/jump_sign.ll index cf5408e071..c1fad43fe5 100644 --- a/test/CodeGen/X86/jump_sign.ll +++ b/test/CodeGen/X86/jump_sign.ll @@ -83,6 +83,25 @@ entry: %cond = select i1 %cmp, i32 %sub, i32 0 ret i32 %cond } +; redundant cmp instruction +define i32 @l(i32 %a, i32 %b) nounwind { +entry: +; CHECK: l: +; CHECK-NOT: cmp + %cmp = icmp slt i32 %b, %a + %sub = sub nsw i32 %a, %b + %cond = select i1 %cmp, i32 %sub, i32 %a + ret i32 %cond +} +define i32 @m(i32 %a, i32 %b) nounwind { +entry: +; CHECK: m: +; CHECK-NOT: cmp + %cmp = icmp sgt i32 %a, %b + %sub = sub nsw i32 %a, %b + %cond = select i1 %cmp, i32 %b, i32 %sub + ret i32 %cond +} ; rdar://11540023 define i64 @n(i64 %x, i64 %y) nounwind { entry: |