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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 | 482e4a8711ae78a5cb1039c946952294491cd294 (patch) | |
| tree | ce8cdd29b6346e7577fede0358c0e28dc1a44f81 /test/CodeGen/X86/shift-combine.ll | |
| parent | 4aab4ab340863d87f9c566b69099ce60dd8762be (diff) | |
| download | llvm-482e4a8711ae78a5cb1039c946952294491cd294.tar.gz llvm-482e4a8711ae78a5cb1039c946952294491cd294.tar.bz2 llvm-482e4a8711ae78a5cb1039c946952294491cd294.tar.xz | |
FileCheck-ize a test, make it more specific to directly test the shift
removal desired.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148213 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/shift-combine.ll')
| -rw-r--r-- | test/CodeGen/X86/shift-combine.ll | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/test/CodeGen/X86/shift-combine.ll b/test/CodeGen/X86/shift-combine.ll index e443ac19a8..0a6ea28faf 100644 --- a/test/CodeGen/X86/shift-combine.ll +++ b/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 } |