6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-11-02 22:04:55 +00:00
Code Issues Projects Releases Wiki Activity

[SROA] Fix two total think-os in r225061 that should have been caught on

Browse Source 
a +asserts bootstrap, but my bootstrap had asserts off. Oops.

Anyways, in some places it is reasonable to cast (as a sanity check) the
pointer operand to a load or store to an instruction within SROA --
namely when the pointer operand is expected to be derived from an
alloca, and thus always an instruction. However, the pre-splitting code
also deals with loads and stores to non-alloca pointers and there we
need to just use the Value*. Nothing about the code relied on the
instruction cast, it was only there essentially as an invariant
assertion. Remove the two that don't actually hold.

This should fix the proximate issue in PR22080, but I'm also doing an
asserts bootstrap myself to see if there are other issues lurking.

I'll craft a reduced test case in a moment, but I wanted to get the tree
healthy as quickly as possible.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225068 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chandler Carruth 2015-01-01 23:26:16 +00:00
parent 32399786f9
commit ed3f2c6761
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
lib/Transforms/Scalar/SROA.cpp
View File

@ -3726,7 +3726,7 @@ bool SROA::presplitLoadsAndStores(AllocaInst &AI, AllocaSlices &AS) {
continue;
}
Instruction *StoreBasePtr = cast<Instruction>(SI->getPointerOperand());
Value *StoreBasePtr = SI->getPointerOperand();
IRB.SetInsertPoint(BasicBlock::iterator(SI));
DEBUG(dbgs() << " Splitting store of load: " << *SI << "\n");
@ -3789,7 +3789,7 @@ bool SROA::presplitLoadsAndStores(AllocaInst &AI, AllocaSlices &AS) {
assert(BaseOffset + StoreSize > BaseOffset &&
"Cannot represent alloca access size using 64-bit integers!");
Instruction *LoadBasePtr = cast<Instruction>(LI->getPointerOperand());
Value *LoadBasePtr = LI->getPointerOperand();
Instruction *StoreBasePtr = cast<Instruction>(SI->getPointerOperand());
DEBUG(dbgs() << " Splitting store: " << *SI << "\n");