[llvm-commits] [llvm] r148213 - /llvm/trunk/test/CodeGen/X86/shift-combine.ll
Chandler Carruth
chandlerc at gmail.com
Sun Jan 15 01:32:58 PST 2012
Author: chandlerc
Date: Sun Jan 15 03:32:57 2012
New Revision: 148213
URL: http://llvm.org/viewvc/llvm-project?rev=148213&view=rev
Log:
FileCheck-ize a test, make it more specific to directly test the shift
removal desired.
Modified:
llvm/trunk/test/CodeGen/X86/shift-combine.ll
Modified: llvm/trunk/test/CodeGen/X86/shift-combine.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/shift-combine.ll?rev=148213&r1=148212&r2=148213&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/shift-combine.ll (original)
+++ llvm/trunk/test/CodeGen/X86/shift-combine.ll Sun Jan 15 03:32:57 2012
@@ -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"
- at array = weak global [4 x i32] zeroinitializer ; <[4 x i32]*> [#uses=1]
+ at 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
}
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