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authorChris Lattner <sabre@nondot.org>2008-04-19 22:32:52 +0000
committerChris Lattner <sabre@nondot.org>2008-04-19 22:32:52 +0000
commit5ae21fb23a55427738132a39c8df550c9c1d0771 (patch)
treec6eb6b32b7cc36629c9abb53e6974aafe6dbf32f /test/Transforms/InstCombine/2004-09-20-BadLoadCombine.ll
parent1ce9e00f8b449be9bcf34d16fadaacf074a16362 (diff)
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rename *.llx -> *.ll, last batch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49971 91177308-0d34-0410-b5e6-96231b3b80d8
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diff --git a/test/Transforms/InstCombine/2004-09-20-BadLoadCombine.ll b/test/Transforms/InstCombine/2004-09-20-BadLoadCombine.ll
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+++ b/test/Transforms/InstCombine/2004-09-20-BadLoadCombine.ll
@@ -0,0 +1,18 @@
+; RUN: llvm-as < %s | opt -instcombine -mem2reg | llvm-dis | \
+; RUN: not grep {i32 1}
+
+; When propagating the load through the select, make sure that the load is
+; inserted where the original load was, not where the select is. Not doing
+; so could produce incorrect results!
+
+define i32 @test(i1 %C) {
+ %X = alloca i32 ; <i32*> [#uses=3]
+ %X2 = alloca i32 ; <i32*> [#uses=2]
+ store i32 1, i32* %X
+ store i32 2, i32* %X2
+ %Y = select i1 %C, i32* %X, i32* %X2 ; <i32*> [#uses=1]
+ store i32 3, i32* %X
+ %Z = load i32* %Y ; <i32> [#uses=1]
+ ret i32 %Z
+}
+