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22 lines
572 B
LLVM
22 lines
572 B
LLVM
; This testcase tests to make sure a trapping instruction is hoisted when
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; it is guaranteed to execute.
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;
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; RUN: llvm-as < %s | opt -licm | llvm-dis | %prcontext "test" 2 | grep div
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@X = global i32 0 ; <i32*> [#uses=1]
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declare void @foo(i32)
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define i32 @test(i1 %c) {
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%A = load i32* @X ; <i32> [#uses=2]
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br label %Loop
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Loop: ; preds = %Loop, %0
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;; Should have hoisted this div!
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%B = sdiv i32 4, %A ; <i32> [#uses=2]
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call void @foo( i32 %B )
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br i1 %c, label %Loop, label %Out
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Out: ; preds = %Loop
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%C = sub i32 %A, %B ; <i32> [#uses=1]
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ret i32 %C
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}
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