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Don't sink landingpad instructions during ind-var simplification.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138651 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling 2011-08-26 20:40:15 +00:00
parent 6ca06cd8a8
commit 2b18881185
2 changed files with 36 additions and 0 deletions
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4
lib/Transforms/Scalar/IndVarSimplify.cpp
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@ -1724,6 +1724,10 @@ void IndVarSimplify::SinkUnusedInvariants(Loop *L) {
if (isa<DbgInfoIntrinsic>(I))
continue;
// Skip landingpad instructions.
if (isa<LandingPadInst>(I))
continue;
// Don't sink static AllocaInsts out of the entry block, which would
// turn them into dynamic allocas!
if (AllocaInst *AI = dyn_cast<AllocaInst>(I))

32
test/Transforms/IndVarSimplify/crash.ll
View File

@ -53,3 +53,35 @@ bb30: ; preds = %bb29
%2 = add nsw i32 %r.0, 1 ; <i32> [#uses=1]
br label %bb24
}
; PR10770
declare void @__go_panic() noreturn
declare void @__go_undefer()
declare i32 @__gccgo_personality_v0(i32, i64, i8*, i8*)
define void @main.main() uwtable {
entry:
invoke void @__go_panic() noreturn
to label %0 unwind label %"5.i"
; <label>:0 ; preds = %entry
unreachable
"3.i": ; preds = %"7.i", %"5.i"
invoke void @__go_undefer()
to label %main.f.exit unwind label %"7.i"
"5.i": ; preds = %entry
%1 = landingpad { i8*, i32 } personality i32 (i32, i64, i8*, i8*)* @__gccgo_personality_v0
catch i8* null
br label %"3.i"
"7.i": ; preds = %"3.i"
br label %"3.i"
main.f.exit: ; preds = %"3.i"
unreachable
}