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| author | Dale Johannesen <dalej@apple.com> | 2008-12-16 22:13:49 +0000 |
|---|---|---|
| committer | Dale Johannesen <dalej@apple.com> | 2008-12-16 22:13:49 +0000 |
| commit | fd3b7b7df3d539d1244933d375a766d7a7fe6c91 (patch) | |
| tree | 7ec72e2deb3f53010c095518f446503ae560e618 /test/CodeGen/X86/2008-12-16-dagcombine-4.ll | |
| parent | d0b6a0d96764e0d5178dc71d8bd9b68a3eaa026e (diff) | |
| download | external_llvm-fd3b7b7df3d539d1244933d375a766d7a7fe6c91.zip external_llvm-fd3b7b7df3d539d1244933d375a766d7a7fe6c91.tar.gz external_llvm-fd3b7b7df3d539d1244933d375a766d7a7fe6c91.tar.bz2 | |
A new dag combine; several permutations of this
are there under ADD, this one was missing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61107 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/2008-12-16-dagcombine-4.ll')
| -rw-r--r-- | test/CodeGen/X86/2008-12-16-dagcombine-4.ll | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/test/CodeGen/X86/2008-12-16-dagcombine-4.ll b/test/CodeGen/X86/2008-12-16-dagcombine-4.ll new file mode 100644 index 0000000..193d290 --- /dev/null +++ b/test/CodeGen/X86/2008-12-16-dagcombine-4.ll @@ -0,0 +1,14 @@ +; RUN: llvm-as < %s | llc -march=x86 | grep "(%esp)" | count 2 +target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128" +target triple = "i386-apple-darwin9.5" +; a - a should be found and removed, leaving refs to only L and P +define i32 @test(i32 %a, i32 %L, i32 %P) nounwind { +entry: + %0 = sub i32 %a, %L + %1 = add i32 %P, %0 + %2 = sub i32 %1, %a + br label %return + +return: ; preds = %bb3 + ret i32 %2 +} |