forked from OSchip/llvm-project
19 lines
683 B
LLVM
19 lines
683 B
LLVM
; Test promotion of loads that use the result of a select instruction. This
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; should be simplified by the instcombine pass.
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; RUN: opt < %s -instcombine -mem2reg -S | not grep alloca
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define i32 @main() {
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%mem_tmp.0 = alloca i32 ; <i32*> [#uses=3]
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%mem_tmp.1 = alloca i32 ; <i32*> [#uses=3]
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store i32 0, i32* %mem_tmp.0
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store i32 1, i32* %mem_tmp.1
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%tmp.1.i = load i32* %mem_tmp.1 ; <i32> [#uses=1]
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%tmp.3.i = load i32* %mem_tmp.0 ; <i32> [#uses=1]
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%tmp.4.i = icmp sle i32 %tmp.1.i, %tmp.3.i ; <i1> [#uses=1]
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%mem_tmp.i.0 = select i1 %tmp.4.i, i32* %mem_tmp.1, i32* %mem_tmp.0 ; <i32*> [#uses=1]
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%tmp.3 = load i32* %mem_tmp.i.0 ; <i32> [#uses=1]
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ret i32 %tmp.3
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}
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