mirror of
https://github.com/c64scene-ar/llvm-6502.git
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d84c3ab4a7
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42108 91177308-0d34-0410-b5e6-96231b3b80d8
27 lines
799 B
LLVM
27 lines
799 B
LLVM
; ModuleID = 'PR1657.bc'
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; Do not promote getelementptr because it may exposes load from a null pointer
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; and store from a null pointer which are covered by
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; icmp eq %struct.decision* null, null condition.
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; RUN: llvm-as < %s | opt -licm | llvm-dis | not grep promoted
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%struct.decision = type { i8, %struct.decision* }
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define i32 @main() {
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entry:
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br label %blah.i
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blah.i: ; preds = %cond_true.i, %entry
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%tmp3.i = icmp eq %struct.decision* null, null ; <i1> [#uses=1]
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br i1 %tmp3.i, label %clear_modes.exit, label %cond_true.i
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cond_true.i: ; preds = %blah.i
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%tmp1.i = getelementptr %struct.decision* null, i32 0, i32 0 ; <i8*> [#uses=1]
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store i8 0, i8* %tmp1.i
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br label %blah.i
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clear_modes.exit: ; preds = %blah.i
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call void @exit( i32 0 )
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unreachable
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}
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declare void @exit(i32)
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