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17 lines
425 B
LLVM
17 lines
425 B
LLVM
; RUN: llvm-as < %s | opt -licm | llvm-dis | %prcontext volatile 1 | grep Loop
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@X = global i32 7 ; <i32*> [#uses=2]
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define void @testfunc(i32 %i) {
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br label %Loop
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Loop: ; preds = %Loop, %0
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; Should not promote this to a register
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%x = volatile load i32* @X ; <i32> [#uses=1]
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%x2 = add i32 %x, 1 ; <i32> [#uses=1]
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store i32 %x2, i32* @X
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br i1 true, label %Out, label %Loop
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Out: ; preds = %Loop
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ret void
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}
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