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| author | Chandler Carruth <chandlerc@gmail.com> | 2012-01-15 09:32:57 +0000 |
|---|---|---|
| committer | Chandler Carruth <chandlerc@gmail.com> | 2012-01-15 09:32:57 +0000 |
| commit | 4bb2eb15d4da76d880f8920f1f5fa94204a23eb0 (patch) | |
| tree | 63b2739b3be3df2a331aceeffebcfcacebb40f07 | |
| parent | 5b15a9be6ae49b4f5d65578820613c47fee8782c (diff) | |
| download | bcm5719-llvm-4bb2eb15d4da76d880f8920f1f5fa94204a23eb0.tar.gz bcm5719-llvm-4bb2eb15d4da76d880f8920f1f5fa94204a23eb0.zip | |
FileCheck-ize a test, make it more specific to directly test the shift
removal desired.
llvm-svn: 148213
| -rw-r--r-- | llvm/test/CodeGen/X86/shift-combine.ll | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/llvm/test/CodeGen/X86/shift-combine.ll b/llvm/test/CodeGen/X86/shift-combine.ll index e443ac19a80..0a6ea28faff 100644 --- a/llvm/test/CodeGen/X86/shift-combine.ll +++ b/llvm/test/CodeGen/X86/shift-combine.ll @@ -1,15 +1,19 @@ -; RUN: llc < %s | not grep shrl +; RUN: llc -march=x86 < %s | FileCheck %s -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 = "i686-apple-darwin8" -@array = weak global [4 x i32] zeroinitializer ; <[4 x i32]*> [#uses=1] +@array = weak global [4 x i32] zeroinitializer + +define i32 @test_lshr_and(i32 %x) { +; CHECK: test_lshr_and: +; CHECK-NOT: shrl +; CHECK: andl $12, +; CHECK: movl array(%{{...}}), +; CHECK: ret -define i32 @foo(i32 %x) { entry: - %tmp2 = lshr i32 %x, 2 ; <i32> [#uses=1] - %tmp3 = and i32 %tmp2, 3 ; <i32> [#uses=1] - %tmp4 = getelementptr [4 x i32]* @array, i32 0, i32 %tmp3 ; <i32*> [#uses=1] - %tmp5 = load i32* %tmp4, align 4 ; <i32> [#uses=1] - ret i32 %tmp5 + %tmp2 = lshr i32 %x, 2 + %tmp3 = and i32 %tmp2, 3 + %tmp4 = getelementptr [4 x i32]* @array, i32 0, i32 %tmp3 + %tmp5 = load i32* %tmp4, align 4 + ret i32 %tmp5 } |
