http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50310
Bug #: 50310
Summary: [4.7 Regression] ICE: in gen_vcondv2div2df, at
config/i386/sse.md:1435 with -O -ftree-vectorize and
__builtin_isunordered()
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: zso...@seznam.cz
CC: rgue...@gcc.gnu.org
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
Created attachment 25208
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25208
reduced testcase
There are three testcases that ICE with a very similiar message:
$ gcc -O -mavx -ftree-vectorize gcc.target/i386/avx-vcmppd-256-1.c
gcc.target/i386/avx-vcmppd-256-1.c: In function 'do_test':
gcc.target/i386/avx-vcmppd-256-1.c:49:5: internal compiler error: in
gen_vcondv4div4df, at config/i386/sse.md:1418
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
$ gcc -O -mavx -ftree-vectorize gcc.target/i386/avx-vcmpps-1.c
gcc.target/i386/avx-vcmpps-1.c: In function 'do_test':
gcc.target/i386/avx-vcmpps-1.c:49:5: internal compiler error: in
gen_vcondv4siv4sf, at config/i386/sse.md:1435
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
$ gcc -O -mavx -ftree-vectorize gcc.target/i386/avx-vcmpps-256-1.c
gcc.target/i386/avx-vcmpps-256-1.c: In function 'do_test':
gcc.target/i386/avx-vcmpps-256-1.c:49:5: internal compiler error: in
gen_vcondv8siv8sf, at config/i386/sse.md:1418
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
As the ICEs look quite similiar, I am opening just one PR for it.
Compiler output:
$ gcc -O -ftree-vectorize testcase.c
testcase.c: In function 'foo':
testcase.c:9:10: internal compiler error: in gen_vcondv2div2df, at
config/i386/sse.md:1435
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
Maybe related to the "Vector Comparison patch".
