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[Bug target/79947] [6/7 Regression] ICE in rs6000_emit_swsqrt at gcc/config/rs6000/rs6000.c:37570
- From: "meissner at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 14 Mar 2017 19:49:11 +0000
- Subject: [Bug target/79947] [6/7 Regression] ICE in rs6000_emit_swsqrt at gcc/config/rs6000/rs6000.c:37570
- Auto-submitted: auto-generated
- References: <bug-79947-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79947
--- Comment #3 from Michael Meissner <meissner at gcc dot gnu.org> ---
The problem is the -mno-powerpc-gfxopt option disables floating point
conditional moves, which is needed to use the floating point reciprocal
estimate instructions.
The macro TARGET_FRSQRTES did not have a check for GFXOPT.