[llvm-commits] [llvm] r147603 - /llvm/trunk/test/CodeGen/X86/shift-folding.ll
Chandler Carruth
chandlerc at gmail.com
Thu Jan 5 03:05:47 PST 2012
Author: chandlerc
Date: Thu Jan 5 05:05:47 2012
New Revision: 147603
URL: http://llvm.org/viewvc/llvm-project?rev=147603&view=rev
Log:
Cleanup and FileCheck-ize a test.
Modified:
llvm/trunk/test/CodeGen/X86/shift-folding.ll
Modified: llvm/trunk/test/CodeGen/X86/shift-folding.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/shift-folding.ll?rev=147603&r1=147602&r2=147603&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/shift-folding.ll (original)
+++ llvm/trunk/test/CodeGen/X86/shift-folding.ll Thu Jan 5 05:05:47 2012
@@ -1,27 +1,49 @@
-; RUN: llc < %s -march=x86 | \
-; RUN: grep {s\[ah\]\[rl\]l} | count 1
+; RUN: llc < %s -march=x86 | FileCheck %s
-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
+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
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