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Add patch from release branch accidentally left off the mainline.

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* mips.md (fix_truncdfsi2, fix_truncsfsi2, fix_truncdfdi2,
	fix_truncsfdi2): Change *X to ?*X.

From-SVN: r16954
This commit is contained in:
Jim Wilson 1997-12-05 01:10:51 +00:00 committed by Jim Wilson
parent 249555b0af
commit 0609f0216f
2 changed files with 15 additions and 4 deletions
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5
gcc/ChangeLog
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@ -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.

14
gcc/config/mips/mips.md
View File

@ -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"
"*
{