From fd14d6cbc4c82fd22a77d7c38ec37b5c8a97f23c Mon Sep 17 00:00:00 2001 From: Segher Boessenkool Date: Fri, 8 Nov 2019 15:53:42 +0100 Subject: [PATCH] rs6000: Fix branch_comparison_operator * config/rs6000/predicates.md (branch_comparison_operator): Allow only the comparison codes that make sense for the mode used, and only the codes that can be done with a single branch instruction. From-SVN: r277976 --- gcc/ChangeLog | 6 ++++++ gcc/config/rs6000/predicates.md | 12 ++++++++---- 2 files changed, 14 insertions(+), 4 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index b61665df3e8..c68960c9d8b 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2019-11-08 Segher Boessenkool + + * config/rs6000/predicates.md (branch_comparison_operator): Allow only + the comparison codes that make sense for the mode used, and only the + codes that can be done with a single branch instruction. + 2019-11-08 Andre Vieira PR tree-optimization/92351 diff --git a/gcc/config/rs6000/predicates.md b/gcc/config/rs6000/predicates.md index 51cdd3a129d..d0c3f9a73b5 100644 --- a/gcc/config/rs6000/predicates.md +++ b/gcc/config/rs6000/predicates.md @@ -1134,10 +1134,14 @@ ;; validate_condition_mode is an assertion. (define_predicate "branch_comparison_operator" (and (match_operand 0 "comparison_operator") - (and (match_test "GET_MODE_CLASS (GET_MODE (XEXP (op, 0))) == MODE_CC") - (match_test "validate_condition_mode (GET_CODE (op), - GET_MODE (XEXP (op, 0))), - 1")))) + (match_test "GET_MODE_CLASS (GET_MODE (XEXP (op, 0))) == MODE_CC") + (if_then_else (match_test "GET_MODE (XEXP (op, 0)) == CCFPmode + && !flag_finite_math_only") + (match_code "lt,gt,eq,unordered,unge,unle,ne,ordered") + (match_code "lt,ltu,le,leu,gt,gtu,ge,geu,eq,ne")) + (match_test "validate_condition_mode (GET_CODE (op), + GET_MODE (XEXP (op, 0))), + 1"))) ;; Return 1 if OP is an unsigned comparison operator. (define_predicate "unsigned_comparison_operator" -- 2.30.2