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| author | Segher Boessenkool <segher@kernel.crashing.org> | 2016-09-27 02:37:07 +0200 |
|---|---|---|
| committer | Segher Boessenkool <segher@gcc.gnu.org> | 2016-09-27 02:37:07 +0200 |
| commit | 963da599303d6abae1507c2b4fea29c941b10289 (patch) | |
| tree | 320d32ed2ac4f4399b2b648d3d91bb8daf1179f4 /gcc | |
| parent | 0c7d89ee1e244c8430f11f355a14f3109cd7b6b7 (diff) | |
| download | gcc-963da599303d6abae1507c2b4fea29c941b10289.zip gcc-963da599303d6abae1507c2b4fea29c941b10289.tar.gz gcc-963da599303d6abae1507c2b4fea29c941b10289.tar.bz2 | |
rs6000: Disparage CTR and LR in movcc_internal1
LRA likes to use CTR and LR to store CCmode values. Not such a good
idea. All other similar patterns disparage using CTR and LR; do so
here, too.
* config/rs6000/rs6000.md (movcc_internal1): Disparage using CTR or LR.
From-SVN: r240515
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/config/rs6000/rs6000.md | 6 |
2 files changed, 8 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 5bca0c2..55824e5 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2016-09-27 Segher Boessenkool <segher@kernel.crashing.org> + + * config/rs6000/rs6000.md (movcc_internal1): Disparage using CTR or LR. + 2016-09-26 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> * config/i386/i386.c (ix86_print_operand) diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md index 7b995ac..a9fabc1 100644 --- a/gcc/config/rs6000/rs6000.md +++ b/gcc/config/rs6000/rs6000.md @@ -6653,8 +6653,10 @@ "") (define_insn "*movcc_internal1" - [(set (match_operand:CC 0 "nonimmediate_operand" "=y,x,?y,y,r,r,r,r,r,cl,r,m") - (match_operand:CC 1 "general_operand" "y,r,r,O,x,y,r,I,h,r,m,r"))] + [(set (match_operand:CC 0 "nonimmediate_operand" + "=y,x,?y,y,r,r,r,r,r,*c*l,r,m") + (match_operand:CC 1 "general_operand" + " y,r, r,O,x,y,r,I,h, r,m,r"))] "register_operand (operands[0], CCmode) || register_operand (operands[1], CCmode)" "@ |