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Fix PR1896

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45568 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2008-01-04 05:04:53 +00:00
parent 331bf92fb5
commit 9027b3cc7f
2 changed files with 27 additions and 1 deletions
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2
lib/Transforms/IPO/GlobalOpt.cpp
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@ -640,7 +640,7 @@ static bool OptimizeAwayTrappingUsesOfLoads(GlobalVariable *GV, Constant *LV) {
// If we get here we could have stores, selects, or phi nodes whose values
// are loaded.
assert((isa<StoreInst>(*GUI) || isa<PHINode>(*GUI) ||
isa<SelectInst>(*GUI)) &&
isa<SelectInst>(*GUI) || isa<ConstantExpr>(*GUI)) &&
"Only expect load and stores!");
}

26
test/Transforms/GlobalOpt/2008-01-03-Crash.ll Normal file
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@ -0,0 +1,26 @@
; RUN: llvm-as < %s | opt -globalopt | llvm-dis
; PR1896
@indirect1 = internal global void (i32)* null ; <void (i32)**> [#uses=2]
declare void @indirectmarked(i32)
define i32 @main() {
entry:
br i1 false, label %cond_next20.i, label %cond_true.i9
cond_true.i9: ; preds = %entry
ret i32 0
cond_next20.i: ; preds = %entry
store void (i32)* @indirectmarked, void (i32)** @indirect1, align 4
br i1 false, label %cond_next21.i.i23.i, label %stack_restore
stack_restore: ; preds = %cond_next20.i
ret i32 0
cond_next21.i.i23.i: ; preds = %cond_next20.i
%tmp6.i4.i = load i32* bitcast (void (i32)** @indirect1 to i32*), align 4 ; <i32> [#uses=0]
ret i32 0
}