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re PR middle-end/18641 (Another ICE caused by reload of a pseudo reg into f0 for a DImode expr) 

2004-12-11  David Edelsohn  <edelsohn@gnu.org>
            Ulrich Weigand  <uweigand@de.ibm.com>

        PR target/18641
        * config/rs6000/darwin.h (PREFERRED_RELOAD_CLASS): Reload all
        constants into all register classes intersecting with FLOAT_REGS
        via memory.
        * config/rs6000/rs6000.h (PREFERRED_RELOAD_CLASS): Same.
        * config/rs6000/rs6000.md (movdi_internal32): Ignore FPRs when
        choosing register preferences.
        (movdi_internal64): Same.

Co-Authored-By: Ulrich Weigand <uweigand@de.ibm.com>

From-SVN: r92032
This commit is contained in:
David Edelsohn 2004-12-11 17:37:25 +00:00 committed by David Edelsohn
parent 3bb18f4921
commit 343f6bbf97
4 changed files with 23 additions and 11 deletions
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12
gcc/ChangeLog
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@ -1,3 +1,15 @@
2004-12-11 David Edelsohn <edelsohn@gnu.org>
Ulrich Weigand <uweigand@de.ibm.com>
PR target/18641
* config/rs6000/darwin.h (PREFERRED_RELOAD_CLASS): Reload all
constants into all register classes intersecting with FLOAT_REGS
via memory.
* config/rs6000/rs6000.h (PREFERRED_RELOAD_CLASS): Same.
* config/rs6000/rs6000.md (movdi_internal32): Ignore FPRs when
choosing register preferences.
(movdi_internal64): Same.
2004-12-11 Kazu Hirata <kazu@cs.umass.edu>
* tree-into-ssa.c (rewrite_ssa_into_ssa): Free SSA_NAME_AUX

4
gcc/config/rs6000/darwin.h
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@ -342,8 +342,8 @@ do { \
#undef PREFERRED_RELOAD_CLASS
#define PREFERRED_RELOAD_CLASS(X,CLASS) \
((GET_CODE (X) == CONST_DOUBLE \
&& GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT) \
((CONSTANT_P (X) \
&& reg_classes_intersect_p ((CLASS), FLOAT_REGS)) \
? NO_REGS \
: ((GET_CODE (X) == SYMBOL_REF || GET_CODE (X) == HIGH) \
&& reg_class_subset_p (BASE_REGS, (CLASS))) \

14
gcc/config/rs6000/rs6000.h
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@ -1397,13 +1397,13 @@ enum reg_class
*/
#define PREFERRED_RELOAD_CLASS(X,CLASS) \
(((GET_CODE (X) == CONST_DOUBLE \
&& GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT) \
? NO_REGS \
: (GET_MODE_CLASS (GET_MODE (X)) == MODE_INT \
&& (CLASS) == NON_SPECIAL_REGS) \
? GENERAL_REGS \
: (CLASS)))
((CONSTANT_P (X) \
&& reg_classes_intersect_p ((CLASS), FLOAT_REGS)) \
? NO_REGS \
: (GET_MODE_CLASS (GET_MODE (X)) == MODE_INT \
&& (CLASS) == NON_SPECIAL_REGS) \
? GENERAL_REGS \
: (CLASS))
/* Return the register class of a scratch register needed to copy IN into
or out of a register in CLASS in MODE. If it can be done directly,

4
gcc/config/rs6000/rs6000.md
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@ -8496,7 +8496,7 @@
; List r->r after r->"o<>", otherwise reload will try to reload a
; non-offsettable address by using r->r which won't make progress.
(define_insn "*movdi_internal32"
[(set (match_operand:DI 0 "nonimmediate_operand" "=o<>,r,r,f,f,m,r")
[(set (match_operand:DI 0 "nonimmediate_operand" "=o<>,r,r,*f,*f,m,r")
(match_operand:DI 1 "input_operand" "r,r,m,f,m,f,IJKnGHF"))]
"! TARGET_POWERPC64
&& (gpc_reg_operand (operands[0], DImode)
@ -8567,7 +8567,7 @@
}")
(define_insn "*movdi_internal64"
[(set (match_operand:DI 0 "nonimmediate_operand" "=r,r,m,r,r,r,r,??f,f,m,r,*h,*h")
[(set (match_operand:DI 0 "nonimmediate_operand" "=r,r,m,r,r,r,r,*f,*f,m,r,*h,*h")
(match_operand:DI 1 "input_operand" "r,m,r,I,L,nF,R,f,m,f,*h,r,0"))]
"TARGET_POWERPC64
&& (gpc_reg_operand (operands[0], DImode)