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| author | wilson <wilson@138bc75d-0d04-0410-961f-82ee72b054a4> | 1997-12-05 01:10:51 +0000 |
|---|---|---|
| committer | wilson <wilson@138bc75d-0d04-0410-961f-82ee72b054a4> | 1997-12-05 01:10:51 +0000 |
| commit | 4d14e18755680e50f217bb0da6ef18198a3efe08 (patch) | |
| tree | 37399725b7ef195a6d8331fdab268fff48c07a1b | |
| parent | 0b2d5a8332f0c860245a2b6bff17940ac8c8c56e (diff) | |
| download | gcc-4d14e18755680e50f217bb0da6ef18198a3efe08.tar.gz | |
Add patch from release branch accidentally left off the mainline.
* mips.md (fix_truncdfsi2, fix_truncsfsi2, fix_truncdfdi2,
fix_truncsfdi2): Change *X to ?*X.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@16954 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/mips/mips.md | 14 |
2 files changed, 15 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 4394e75bf15..bccce410e2a 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -118,6 +118,11 @@ Tue Nov 25 23:33:29 1997 scott snyder <snyder@d0sgif.fnal.gov> * libgcc2.c (__throw): Initialize HANDLER. +Tue Nov 25 14:08:12 1997 Jim Wilson <wilson@cygnus.com> + + * mips.md (fix_truncdfsi2, fix_truncsfsi2, fix_truncdfdi2, + fix_truncsfdi2): Change *X to ?*X. + Tue Nov 25 10:00:42 1997 Richard Henderson (rth@cygnus.com) * alpha.h (CONST_OK_FOR_LETTER): Fix 'L' handling. diff --git a/gcc/config/mips/mips.md b/gcc/config/mips/mips.md index dcd82fde571..27958ca0efc 100644 --- a/gcc/config/mips/mips.md +++ b/gcc/config/mips/mips.md @@ -2773,11 +2773,17 @@ move\\t%0,%z4\\n\\ ;; operand zero, because then the address in the move instruction will be ;; clobbered. We mark the scratch register as early clobbered to prevent this. +;; We need the ?X in alternative 1 so that it will be choosen only if the +;; destination is a floating point register. Otherwise, alternative 1 can +;; have lower cost than alternative 0 (because there is one less loser), and +;; can be choosen when it won't work (because integral reloads into FP +;; registers are not supported). + (define_insn "fix_truncdfsi2" [(set (match_operand:SI 0 "general_operand" "=d,*f,R,o") (fix:SI (match_operand:DF 1 "register_operand" "f,*f,f,f"))) (clobber (match_scratch:SI 2 "=d,*d,&d,&d")) - (clobber (match_scratch:DF 3 "=f,*X,f,f"))] + (clobber (match_scratch:DF 3 "=f,?*X,f,f"))] "TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT" "* { @@ -2802,7 +2808,7 @@ move\\t%0,%z4\\n\\ [(set (match_operand:SI 0 "general_operand" "=d,*f,R,o") (fix:SI (match_operand:SF 1 "register_operand" "f,*f,f,f"))) (clobber (match_scratch:SI 2 "=d,*d,&d,&d")) - (clobber (match_scratch:SF 3 "=f,*X,f,f"))] + (clobber (match_scratch:SF 3 "=f,?*X,f,f"))] "TARGET_HARD_FLOAT" "* { @@ -2835,7 +2841,7 @@ move\\t%0,%z4\\n\\ (define_insn "fix_truncdfdi2" [(set (match_operand:DI 0 "general_operand" "=d,*f,R,o") (fix:DI (match_operand:DF 1 "register_operand" "f,*f,f,f"))) - (clobber (match_scratch:DF 2 "=f,*X,f,f"))] + (clobber (match_scratch:DF 2 "=f,?*X,f,f"))] "TARGET_HARD_FLOAT && TARGET_64BIT && TARGET_DOUBLE_FLOAT" "* { @@ -2862,7 +2868,7 @@ move\\t%0,%z4\\n\\ (define_insn "fix_truncsfdi2" [(set (match_operand:DI 0 "general_operand" "=d,*f,R,o") (fix:DI (match_operand:SF 1 "register_operand" "f,*f,f,f"))) - (clobber (match_scratch:DF 2 "=f,*X,f,f"))] + (clobber (match_scratch:DF 2 "=f,?*X,f,f"))] "TARGET_HARD_FLOAT && TARGET_64BIT && TARGET_DOUBLE_FLOAT" "* { |