https://llvm.org/bugs/show_bug.cgi?id=24199
Bug ID: 24199
Summary: Crash in
llvm::MachineTraceMetrics::Ensemble::computeCrossBlock
CriticalPath
Product: new-bugs
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: new bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Created attachment 14622
--> https://llvm.org/bugs/attachment.cgi?id=14622&action=edit
Test case
The attached reduced test case (test.cpp) causes a crash in
llvm::MachineTraceMetrics::Ensemble::computeCrossBlockCriticalPath.
Compile with:
clang test.cpp -c -ffast-math -O3 -g
Stack trace attached.
Manually bisecting indicates that it started with r241515:
--------------------
[x86] extend machine combiner reassociation optimization to SSE scalar adds
Extend the reassociation optimization of http://reviews.llvm.org/rL240361
(D10460)
to SSE scalar FP SP adds in addition to AVX scalar FP SP adds.
With the 'switch' in place, we can trivially add other opcodes and test cases
in
future patches.
Differential Revision: http://reviews.llvm.org/D10975
--------------------
--
You are receiving this mail because:
You are on the CC list for the bug.
_______________________________________________
LLVMbugs mailing list
[email protected]
http://lists.cs.uiuc.edu/mailman/listinfo/llvmbugs
