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rs6000: fix misleading new patterns of splitters

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As a comment in
https://gcc.gnu.org/pipermail/gcc-patches/2022-August/599556.html

Those splitters call rs6000_emit_set_const directly, and the replacements
are never used.  Using (pc) would be less misleading.

gcc/ChangeLog:

	* config/rs6000/rs6000.md: (constant splitters): Use "(pc)" as the
	replacements.
This commit is contained in:
Jiufu Guo 2022-08-11 20:01:28 +08:00
parent c0852b51b7
commit 34ea461fdb
1 changed files with 3 additions and 9 deletions
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12
gcc/config/rs6000/rs6000.md
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@ -7773,11 +7773,7 @@
[(set (match_operand:SI 0 "gpc_reg_operand")
(match_operand:SI 1 "const_int_operand"))]
"num_insns_constant (operands[1], SImode) > 1"
[(set (match_dup 0)
(match_dup 2))
(set (match_dup 0)
(ior:SI (match_dup 0)
(match_dup 3)))]
[(pc)]
{
if (rs6000_emit_set_const (operands[0], operands[1]))
DONE;
@ -9708,8 +9704,7 @@
[(set (match_operand:DI 0 "int_reg_operand_not_pseudo")
(match_operand:DI 1 "const_int_operand"))]
"TARGET_POWERPC64 && num_insns_constant (operands[1], DImode) > 1"
[(set (match_dup 0) (match_dup 2))
(set (match_dup 0) (plus:DI (match_dup 0) (match_dup 3)))]
[(pc)]
{
if (rs6000_emit_set_const (operands[0], operands[1]))
DONE;
@ -9721,8 +9716,7 @@
[(set (match_operand:DI 0 "int_reg_operand_not_pseudo")
(match_operand:DI 1 "const_scalar_int_operand"))]
"TARGET_POWERPC64 && num_insns_constant (operands[1], DImode) > 1"
[(set (match_dup 0) (match_dup 2))
(set (match_dup 0) (plus:DI (match_dup 0) (match_dup 3)))]
[(pc)]
{
if (rs6000_emit_set_const (operands[0], operands[1]))
DONE;