[Bug target/60554] redundant instruction is generated for setting the flags on x86

2017-01-11 Thread ubizjak at gmail dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60554 Uroš Bizjak changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|---

[Bug target/60554] redundant instruction is generated for setting the flags on x86

2017-01-11 Thread ubizjak at gmail dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60554 --- Comment #3 from Uroš Bizjak --- (In reply to Luchezar Belev from comment #0) > consider this simple function: > int is_float_negative(int x) { return (int)(x ^ 0x8000) > 0; } > > for x86, with options "-O3 -march=core2", GCC 4.8.2 gener