http://llvm.org/bugs/show_bug.cgi?id=17912
Bug ID: 17912
Summary: LICM doesn't handle intrinsics
Product: tools
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: opt
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Created attachment 11534
--> http://llvm.org/bugs/attachment.cgi?id=11534&action=edit
Reproducer
LICM doesn't handle intrinsics. Compiler should recognize most of intrinsics
and hoist them out of the loop if their arguments are loop invariants.
This seems to be the general problem, but I may be mistaken (and actually I
hope so!). The intrinsics that I've stuck with is @llvm.x86.sse41.blendvps().
I've attached short reproducer.
> opt -licm licm_intrinsics.ll | llvm-dis
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