From db88b449589fa989c1f72e4796d2bce291b6cedf Mon Sep 17 00:00:00 2001 From: Tom de Vries Date: Wed, 25 Jun 2014 19:23:02 +0000 Subject: [PATCH] Remove superfluous clobber of cc in arm_emit_call_insn 2014-06-25 Tom de Vries * config/arm/arm.c (arm_emit_call_insn): Remove clobber of CC_REGNUM. From-SVN: r211990 --- gcc/ChangeLog | 4 ++++ gcc/config/arm/arm.c | 6 +++--- 2 files changed, 7 insertions(+), 3 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 33c5b48e4bc9..fba575ec6355 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2014-06-25 Tom de Vries + + * config/arm/arm.c (arm_emit_call_insn): Remove clobber of CC_REGNUM. + 2014-06-25 Bernd Edlinger * tree-ssa-forwprop.c (associate_plusminus): For widening conversions diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c index 464dec1dd836..0146fe8ef94e 100644 --- a/gcc/config/arm/arm.c +++ b/gcc/config/arm/arm.c @@ -17642,11 +17642,11 @@ arm_emit_call_insn (rtx pat, rtx addr, bool sibcall) if (TARGET_AAPCS_BASED) { /* For AAPCS, IP and CC can be clobbered by veneers inserted by the - linker. We need to add these to allow setting - TARGET_CALL_FUSAGE_CONTAINS_NON_CALLEE_CLOBBERS to true. */ + linker. We need to add an IP clobber to allow setting + TARGET_CALL_FUSAGE_CONTAINS_NON_CALLEE_CLOBBERS to true. A CC clobber + is not needed since it's a fixed register. */ rtx *fusage = &CALL_INSN_FUNCTION_USAGE (insn); clobber_reg (fusage, gen_rtx_REG (word_mode, IP_REGNUM)); - clobber_reg (fusage, gen_rtx_REG (word_mode, CC_REGNUM)); } } -- 2.47.2