Displaying 2 results from an estimated 2 matches for "gettgtmeminstrinsic".
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gettgtmemintrinsic
2012 Nov 06
4
[LLVMdev] FW: Bug in SelectionDAG visitTargetIntrinsic
From: Villmow, Micah
Sent: Tuesday, November 06, 2012 1:37 PM
To: 'llvm-dev at cs.uiuc.edu'
Cc: Guo, Xiaoyi
Subject: Bug in SelectionDAG visitTargetIntrinsic
We ran into a problem where specifying IntrNoMem was causing our instruction selection to fail with target specific intrinsics. After looking into the code and ISel debug it looks like tablegen and SelectionDAG are using different
2012 Nov 06
0
[LLVMdev] Bug in SelectionDAG visitTargetIntrinsic
...getIntrinsic(const CallInst &I,
- unsigned Intrinsic) {
- bool HasChain = !I.doesNotAccessMemory();
- bool OnlyLoad = HasChain && I.onlyReadsMemory();
+ unsigned Intrinsic) {
+ // Info is set by getTgtMemInstrinsic
+ TargetLowering::IntrinsicInfo Info;
+ bool IsTgtIntrinsic = TLI.getTgtMemIntrinsic(Info, I, Intrinsic);
+ bool HasChain = Info.readMem || Info.writeMem;
+ bool OnlyLoad = HasChain && Info.readMem;
This doesn't seem right. If a call is marked ReadNone, it doesn't seem legal to...