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[37.158.56.184]) by smtp.gmail.com with ESMTPSA id x26sm5359539wmc.14.2019.11.14.02.07.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Nov 2019 02:07:32 -0800 (PST) From: Richard Henderson To: gcc-patches@gcc.gnu.org Cc: richard.earnshaw@arm.com, kyrylo.tkachov@arm.com, richard.sandiford@arm.com Subject: [PATCH v2 2/6] arm: Fix the "c" constraint Date: Thu, 14 Nov 2019 11:07:12 +0100 Message-Id: <20191114100716.28827-3-richard.henderson@linaro.org> In-Reply-To: <20191114100716.28827-1-richard.henderson@linaro.org> References: <20191114100716.28827-1-richard.henderson@linaro.org> The existing definition using register class CC_REG does not work because CC_REGNUM does not support normal modes, and so fails to match register_operand. Use a non-register constraint and the cc_register predicate instead. * config/arm/constraints.md (c): Use cc_register predicate. --- gcc/config/arm/constraints.md | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/gcc/config/arm/constraints.md b/gcc/config/arm/constraints.md index b76de81b85c..e02b678d26d 100644 --- a/gcc/config/arm/constraints.md +++ b/gcc/config/arm/constraints.md @@ -94,8 +94,9 @@ "@internal Thumb only. The union of the low registers and the stack register.") -(define_register_constraint "c" "CC_REG" - "@internal The condition code register.") +(define_constraint "c" + "@internal The condition code register." + (match_operand 0 "cc_register")) (define_register_constraint "Cs" "CALLER_SAVE_REGS" "@internal The caller save registers. Useful for sibcalls.")