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1) Check that trapping instructionns that are not guaranteed to execute are not hoisted. 2) Check that trapping instructions that are guaranteed to execute are hoisted. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7613 91177308-0d34-0410-b5e6-96231b3b80d8
21 lines
429 B
LLVM
21 lines
429 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: as < %s | opt -licm | dis | grep -C 2 "test" | grep div
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%X = global int 0
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declare void %foo()
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int %test(bool %c) {
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%A = load int *%X
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br label %Loop
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Loop:
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call void %foo()
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%B = div int 4, %A ;; Should have hoisted this div!
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br bool %c, label %Loop, label %Out
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Out:
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%C = sub int %A, %B
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ret int %C
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}
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