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| author | Chandler Carruth <chandlerc@gmail.com> | 2012-01-05 11:05:47 +0000 |
|---|---|---|
| committer | Chandler Carruth <chandlerc@gmail.com> | 2012-01-05 11:05:47 +0000 |
| commit | 1e141a854e0ecaace5925039159daf9dd8426196 (patch) | |
| tree | f16736b2bde61a6c51fa8367f2d5d41649b5fe7e /test/CodeGen/X86/shift-folding.ll | |
| parent | 193cf04f5b33ddb8df0d35f73281934701f8eced (diff) | |
| download | external_llvm-1e141a854e0ecaace5925039159daf9dd8426196.zip external_llvm-1e141a854e0ecaace5925039159daf9dd8426196.tar.gz external_llvm-1e141a854e0ecaace5925039159daf9dd8426196.tar.bz2 | |
Cleanup and FileCheck-ize a test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147603 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/shift-folding.ll')
| -rw-r--r-- | test/CodeGen/X86/shift-folding.ll | 58 |
1 files changed, 40 insertions, 18 deletions
diff --git a/test/CodeGen/X86/shift-folding.ll b/test/CodeGen/X86/shift-folding.ll index d9c3061..7eac116 100644 --- a/test/CodeGen/X86/shift-folding.ll +++ b/test/CodeGen/X86/shift-folding.ll @@ -1,27 +1,49 @@ -; RUN: llc < %s -march=x86 | \ -; RUN: grep {s\[ah\]\[rl\]l} | count 1 - -define i32* @test1(i32* %P, i32 %X) nounwind { - %Y = lshr i32 %X, 2 ; <i32> [#uses=1] - %gep.upgrd.1 = zext i32 %Y to i64 ; <i64> [#uses=1] - %P2 = getelementptr i32* %P, i64 %gep.upgrd.1 ; <i32*> [#uses=1] - ret i32* %P2 +; RUN: llc < %s -march=x86 | FileCheck %s + +define i32* @test1(i32* %P, i32 %X) { +; CHECK: test1: +; CHECK-NOT: shrl +; CHECK-NOT: shll +; CHECK: ret + +entry: + %Y = lshr i32 %X, 2 + %gep.upgrd.1 = zext i32 %Y to i64 + %P2 = getelementptr i32* %P, i64 %gep.upgrd.1 + ret i32* %P2 } -define i32* @test2(i32* %P, i32 %X) nounwind { - %Y = shl i32 %X, 2 ; <i32> [#uses=1] - %gep.upgrd.2 = zext i32 %Y to i64 ; <i64> [#uses=1] - %P2 = getelementptr i32* %P, i64 %gep.upgrd.2 ; <i32*> [#uses=1] - ret i32* %P2 +define i32* @test2(i32* %P, i32 %X) { +; CHECK: test2: +; CHECK: shll $4 +; CHECK-NOT: shll +; CHECK: ret + +entry: + %Y = shl i32 %X, 2 + %gep.upgrd.2 = zext i32 %Y to i64 + %P2 = getelementptr i32* %P, i64 %gep.upgrd.2 + ret i32* %P2 } -define i32* @test3(i32* %P, i32 %X) nounwind { - %Y = ashr i32 %X, 2 ; <i32> [#uses=1] - %P2 = getelementptr i32* %P, i32 %Y ; <i32*> [#uses=1] - ret i32* %P2 +define i32* @test3(i32* %P, i32 %X) { +; CHECK: test3: +; CHECK-NOT: shrl +; CHECK-NOT: shll +; CHECK: ret + +entry: + %Y = ashr i32 %X, 2 + %P2 = getelementptr i32* %P, i32 %Y + ret i32* %P2 } -define fastcc i32 @test4(i32* %d) nounwind { +define fastcc i32 @test4(i32* %d) { +; CHECK: test4: +; CHECK-NOT: shrl +; CHECK: ret + +entry: %tmp4 = load i32* %d %tmp512 = lshr i32 %tmp4, 24 ret i32 %tmp512 |