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| author | Cameron Zwarich <zwarich@apple.com> | 2011-04-15 21:24:38 +0000 |
|---|---|---|
| committer | Cameron Zwarich <zwarich@apple.com> | 2011-04-15 21:24:38 +0000 |
| commit | 0cb11ac32fc09c5db42fb801db242ac9fb51f6b1 (patch) | |
| tree | 9ab277597e35edd12827665a3179cdd1b21e595f /test | |
| parent | 3e03e5d2a95670efec327550d15895c25e7fc43b (diff) | |
| download | external_llvm-0cb11ac32fc09c5db42fb801db242ac9fb51f6b1.zip external_llvm-0cb11ac32fc09c5db42fb801db242ac9fb51f6b1.tar.gz external_llvm-0cb11ac32fc09c5db42fb801db242ac9fb51f6b1.tar.bz2 | |
Add ORR and EOR to the CMP peephole optimizer. It's hard to get isel to generate
a case involving EOR, so I only added a test for ORR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129610 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/ARM/2011-04-15-RegisterCmpPeephole.ll | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/test/CodeGen/ARM/2011-04-15-RegisterCmpPeephole.ll b/test/CodeGen/ARM/2011-04-15-RegisterCmpPeephole.ll index a98d3f6..5404cf5 100644 --- a/test/CodeGen/ARM/2011-04-15-RegisterCmpPeephole.ll +++ b/test/CodeGen/ARM/2011-04-15-RegisterCmpPeephole.ll @@ -3,7 +3,7 @@ ; CHECK: _f ; CHECK: adds ; CHECK-NOT: cmp -; CHECK: blxeq _g +; CHECK: blxeq _h define i32 @f(i32 %a, i32 %b) nounwind ssp { entry: @@ -12,11 +12,30 @@ entry: br i1 %cmp, label %if.then, label %if.end if.then: ; preds = %entry - tail call void (...)* @g(i32 %a, i32 %b) nounwind + tail call void (...)* @h(i32 %a, i32 %b) nounwind br label %if.end if.end: ; preds = %if.then, %entry ret i32 %add } -declare void @g(...) +; CHECK: _g +; CHECK: orrs +; CHECK-NOT: cmp +; CHECK: blxeq _h + +define i32 @g(i32 %a, i32 %b) nounwind ssp { +entry: + %add = or i32 %b, %a + %cmp = icmp eq i32 %add, 0 + br i1 %cmp, label %if.then, label %if.end + +if.then: ; preds = %entry + tail call void (...)* @h(i32 %a, i32 %b) nounwind + br label %if.end + +if.end: ; preds = %if.then, %entry + ret i32 %add +} + +declare void @h(...) |