http://llvm.org/bugs/show_bug.cgi?id=21919
Bug ID: 21919
Summary: PBQP takes ages (infloops?) to compile this testcase
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Register Allocator
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Created attachment 13544
--> http://llvm.org/bugs/attachment.cgi?id=13544&action=edit
test case
time clang -Oz -march=i386 -m32 -std=gnu99 -c boot2-minimal.c
0.184u 0.016s 0:00.20 95.0% 50273+3673k 4+1io 0pf+0w
clang -Oz -march=i386 -mllvm -regalloc=pbqp -m32 -std=gnu99 -c boot2-minimal.c
doesnt finish within 10 minutes
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