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Watch out for blocks that end with a return.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37227 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2007-05-18 17:06:53 +00:00
parent 7d841a4914
commit 6092ca1556
1 changed files with 2 additions and 2 deletions
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4
lib/CodeGen/IfConversion.cpp
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@ -316,7 +316,7 @@ bool IfConverter::IfConvertDiamond(BBInfo &BBI) {
// Either the 'true' block fallthrough to another block or it ends with a
// return. If it's the former, add a conditional branch to its successor.
if (!TrueBBI.TrueBB)
if (!TrueBBI.TrueBB && BBI.TrueBB->succ_size())
TII->InsertBranch(*BBI.TrueBB, *BBI.TrueBB->succ_begin(), NULL, BBI.Cond);
// Predicate the 'false' block.
@ -326,7 +326,7 @@ bool IfConverter::IfConvertDiamond(BBInfo &BBI) {
// Either the 'false' block fallthrough to another block or it ends with a
// return. If it's the former, add a conditional branch to its successor.
if (!FalseBBI.TrueBB)
if (!FalseBBI.TrueBB && BBI.FalseBB->succ_size())
TII->InsertBranch(*BBI.FalseBB, *BBI.FalseBB->succ_begin(), NULL,NewCond);
// Merge the 'true' and 'false' blocks by copying the instructions