https://bugs.llvm.org/show_bug.cgi?id=43571
Bug ID: 43571
Summary: Compilation hang at -O2
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Global Analyses
Assignee: unassignedb...@nondot.org
Reporter: pauls...@linux.vnet.ibm.com
CC: llvm-bugs@lists.llvm.org
Created attachment 22630
--> https://bugs.llvm.org/attachment.cgi?id=22630&action=edit
unreduced test case
time at -O1 is <1s, but at -O3 it's been nearly 10hrs.
clang -cc1 -triple s390x-ibm-linux -S -save-temps=cwd -disable-free
-mrelocation-model static -mthread-model posix -mframe-pointer=none
-fmath-errno -masm-verbose -mconstructor-aliases -fuse-init-array -target-cpu
z10 -dwarf-column-info -debugger-tuning=gdb -v -O3 -w -ferror-limit 19
-fmessage-length 0 -fno-signed-char -fobjc-runtime=gcc
-fdiagnostics-show-option -fcolor-diagnostics -vectorize-loops -vectorize-slp
-faddrsig -o tc_opthang.s -x ir tc_opthang.bc
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