6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-09-24 23:28:41 +00:00
Code Issues Projects Releases Wiki Activity

LoopVectorize: Fix a bug in the scalarization of instructions.

Browse Source 
Before if-conversion we could check if a value is loop invariant
if it was declared inside the basic block. Now that loops have
multiple blocks this check is incorrect.

This fixes External/SPEC/CINT95/099_go/099_go



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170756 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nadav Rotem
2012-12-20 20:24:40 +00:00
parent 139e407d52
commit 8386acd734
2 changed files with 49 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
lib/Transforms/Vectorize/LoopVectorize.cpp
View File

@@ -284,7 +284,7 @@ void InnerLoopVectorizer::scalarizeInstruction(Instruction *Instr) {
// If the src is an instruction that appeared earlier in the basic block
// then it should already be vectorized.
if (SrcInst && SrcInst->getParent() == Instr->getParent()) {
if (SrcInst && OrigLoop->contains(SrcInst)) {
assert(WidenMap.count(SrcInst) && "Source operand is unavailable");
// The parameter is a vector value from earlier.
Params.push_back(WidenMap[SrcInst]);