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21 lines
822 B
LLVM
21 lines
822 B
LLVM
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; RUN: llc -march=x86 %s -o -
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; RUN: llc -march=x86-64 %s -o -
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; PR6497
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; Chain and flag folding issues.
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define i32 @test1() nounwind ssp {
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entry:
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%tmp5.i = volatile load i32* undef ; <i32> [#uses=1]
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%conv.i = zext i32 %tmp5.i to i64 ; <i64> [#uses=1]
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%tmp12.i = volatile load i32* undef ; <i32> [#uses=1]
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%conv13.i = zext i32 %tmp12.i to i64 ; <i64> [#uses=1]
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%shl.i = shl i64 %conv13.i, 32 ; <i64> [#uses=1]
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%or.i = or i64 %shl.i, %conv.i ; <i64> [#uses=1]
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%add16.i = add i64 %or.i, 256 ; <i64> [#uses=1]
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%shr.i = lshr i64 %add16.i, 8 ; <i64> [#uses=1]
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%conv19.i = trunc i64 %shr.i to i32 ; <i32> [#uses=1]
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volatile store i32 %conv19.i, i32* undef
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ret i32 undef
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}
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