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Fix typo, fix PR 2865.

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llvm-svn: 57221
This commit is contained in:
Devang Patel 2008-10-06 23:22:54 +00:00
parent 40d00c0979
commit 378c8633e5
2 changed files with 33 additions and 2 deletions
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4
lib/Transforms/Scalar/LoopIndexSplit.cpp
View File

@ -940,8 +940,8 @@ bool LoopIndexSplit::updateLoopIterationSpace(SplitInfo &SD) {
if (Op0->getPredicate() == ICmpInst::ICMP_EQ
|| Op0->getPredicate() == ICmpInst::ICMP_NE
|| Op0->getPredicate() == ICmpInst::ICMP_EQ
|| Op0->getPredicate() == ICmpInst::ICMP_NE)
|| Op1->getPredicate() == ICmpInst::ICMP_EQ
|| Op1->getPredicate() == ICmpInst::ICMP_NE)
return false;
// Check if SplitCondition dominates entire loop body

31
test/Transforms/LoopIndexSplit/2008-10-06-Crash.ll Normal file
View File

@ -0,0 +1,31 @@
; RUN: llvm-as < %s | opt -loop-index-split -disable-output
%struct.RExC_state_t = type { i32, i8*, %struct.regexp*, i8*, i8*, i8*, i32, %struct.regnode*, %struct.regnode*, i32, i32, i32, i32, i32, i32, i32, i32, i32 }
%struct.SV = type { i8*, i32, i32 }
%struct.reg_data = type { i32, i8*, [1 x i8*] }
%struct.reg_substr_data = type { [3 x %struct.reg_substr_datum] }
%struct.reg_substr_datum = type { i32, i32, %struct.SV*, %struct.SV* }
%struct.regexp = type { i32*, i32*, %struct.regnode*, %struct.reg_substr_data*, i8*, %struct.reg_data*, i8*, i32*, i32, i32, i32, i32, i32, i32, i32, i32, [1 x %struct.regnode] }
%struct.regnode = type { i8, i8, i16 }
define fastcc %struct.regnode* @S_regclass(%struct.RExC_state_t* %pRExC_state) nounwind {
entry:
br label %bb439
bb439: ; preds = %bb444, %entry
%value23.16.reg2mem.0 = phi i32 [ %3, %bb444 ], [ 0, %entry ] ; <i32> [#uses=3]
%0 = icmp ugt i32 %value23.16.reg2mem.0, 31 ; <i1> [#uses=1]
%1 = icmp ne i32 %value23.16.reg2mem.0, 127 ; <i1> [#uses=1]
%2 = and i1 %0, %1 ; <i1> [#uses=1]
br i1 %2, label %bb443, label %bb444
bb443: ; preds = %bb439
br label %bb444
bb444: ; preds = %bb443, %bb439
%3 = add i32 %value23.16.reg2mem.0, 1 ; <i32> [#uses=2]
%4 = icmp ugt i32 %3, 255 ; <i1> [#uses=1]
br i1 %4, label %bb675, label %bb439
bb675: ; preds = %bb444
unreachable
}