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| author | Tom de Vries <tom@codesourcery.com> | 2014-06-25 19:23:02 +0000 |
|---|---|---|
| committer | Tom de Vries <vries@gcc.gnu.org> | 2014-06-25 19:23:02 +0000 |
| commit | db88b449589fa989c1f72e4796d2bce291b6cedf (patch) | |
| tree | 8c26ce0a1d1bfecc04855a94d51240ca6553ff42 | |
| parent | f9bb13f37b87855ae980d9e774bd54f11b8d3a3f (diff) | |
| download | gcc-db88b449589fa989c1f72e4796d2bce291b6cedf.zip gcc-db88b449589fa989c1f72e4796d2bce291b6cedf.tar.gz gcc-db88b449589fa989c1f72e4796d2bce291b6cedf.tar.bz2 | |
Remove superfluous clobber of cc in arm_emit_call_insn
2014-06-25 Tom de Vries <tom@codesourcery.com>
* config/arm/arm.c (arm_emit_call_insn): Remove clobber of CC_REGNUM.
From-SVN: r211990
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/config/arm/arm.c | 6 |
2 files changed, 7 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 33c5b48..fba575e 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2014-06-25 Tom de Vries <tom@codesourcery.com> + + * config/arm/arm.c (arm_emit_call_insn): Remove clobber of CC_REGNUM. + 2014-06-25 Bernd Edlinger <bernd.edlinger@hotmail.de> * tree-ssa-forwprop.c (associate_plusminus): For widening conversions diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c index 464dec1..0146fe8 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)); } } |