Some move patterns on hppa use the "rG" constraint and some just use the "r"
constraint
for the copy instruction. This patch makes all the move patterns consistent.
It causes
a copy of register %r0 to always be used to zero a register.
There's no functional change since there are multiple ways to zero integer
registers.
Tested on hppa2.0w-hp-hpux11.11 and hppa64-hp-hpux11.11.
Committed to active branches.
Dave
---
Consistently use "rG" constraint for copy instruction in move patterns
2021-10-15 John David Anglin <dang...@gcc.gnu.org>
gcc/ChangeLog:
* config/pa/pa.md: Consistently use "rG" constraint for copy
instruction in move patterns.
diff --git a/gcc/config/pa/pa.md b/gcc/config/pa/pa.md
index 13a25381b6d..5cda3b79933 100644
--- a/gcc/config/pa/pa.md
+++ b/gcc/config/pa/pa.md
@@ -2186,14 +2186,14 @@
[(set (match_operand:SI 0 "move_dest_operand"
"=r,r,r,r,r,r,Q,!*q,!r,!*f,*f,T,?r,?*f")
(match_operand:SI 1 "move_src_operand"
- "A,r,J,N,K,RQ,rM,!rM,!*q,!*fM,RT,*f,*f,r"))]
+ "A,rG,J,N,K,RQ,rM,!rM,!*q,!*fM,RT,*f,*f,r"))]
"(register_operand (operands[0], SImode)
|| reg_or_0_operand (operands[1], SImode))
&& !TARGET_SOFT_FLOAT
&& !TARGET_64BIT"
"@
ldw RT'%A1,%0
- copy %1,%0
+ copy %r1,%0
ldi %1,%0
ldil L'%1,%0
{zdepi|depwi,z} %Z1,%0
@@ -2214,14 +2214,14 @@
[(set (match_operand:SI 0 "move_dest_operand"
"=r,r,r,r,r,r,Q,!*q,!r,!*f,*f,T")
(match_operand:SI 1 "move_src_operand"
- "A,r,J,N,K,RQ,rM,!rM,!*q,!*fM,RT,*f"))]
+ "A,rG,J,N,K,RQ,rM,!rM,!*q,!*fM,RT,*f"))]
"(register_operand (operands[0], SImode)
|| reg_or_0_operand (operands[1], SImode))
&& !TARGET_SOFT_FLOAT
&& TARGET_64BIT"
"@
ldw RT'%A1,%0
- copy %1,%0
+ copy %r1,%0
ldi %1,%0
ldil L'%1,%0
{zdepi|depwi,z} %Z1,%0
@@ -2240,14 +2240,14 @@
[(set (match_operand:SI 0 "move_dest_operand"
"=r,r,r,r,r,r,Q,!*q,!r")
(match_operand:SI 1 "move_src_operand"
- "A,r,J,N,K,RQ,rM,!rM,!*q"))]
+ "A,rG,J,N,K,RQ,rM,!rM,!*q"))]
"(register_operand (operands[0], SImode)
|| reg_or_0_operand (operands[1], SImode))
&& TARGET_SOFT_FLOAT
&& TARGET_64BIT"
"@
ldw RT'%A1,%0
- copy %1,%0
+ copy %r1,%0
ldi %1,%0
ldil L'%1,%0
{zdepi|depwi,z} %Z1,%0
@@ -2381,13 +2381,13 @@
[(set (match_operand:SI 0 "move_dest_operand"
"=r,r,r,r,r,r,Q,!*q,!r")
(match_operand:SI 1 "move_src_operand"
- "A,r,J,N,K,RQ,rM,!rM,!*q"))]
+ "A,rG,J,N,K,RQ,rM,!rM,!*q"))]
"(register_operand (operands[0], SImode)
|| reg_or_0_operand (operands[1], SImode))
&& TARGET_SOFT_FLOAT"
"@
ldw RT'%A1,%0
- copy %1,%0
+ copy %r1,%0
ldi %1,%0
ldil L'%1,%0
{zdepi|depwi,z} %Z1,%0
@@ -2909,11 +2909,11 @@
[(set (match_operand:HI 0 "move_dest_operand"
"=r,r,r,r,r,Q,!*q,!r")
(match_operand:HI 1 "move_src_operand"
- "r,J,N,K,RQ,rM,!rM,!*q"))]
+ "rG,J,N,K,RQ,rM,!rM,!*q"))]
"(register_operand (operands[0], HImode)
|| reg_or_0_operand (operands[1], HImode))"
"@
- copy %1,%0
+ copy %r1,%0
ldi %1,%0
ldil L'%1,%0
{zdepi|depwi,z} %Z1,%0
@@ -3069,11 +3069,11 @@
[(set (match_operand:QI 0 "move_dest_operand"
"=r,r,r,r,r,Q,!*q,!r")
(match_operand:QI 1 "move_src_operand"
- "r,J,N,K,RQ,rM,!rM,!*q"))]
+ "rG,J,N,K,RQ,rM,!rM,!*q"))]
"(register_operand (operands[0], QImode)
|| reg_or_0_operand (operands[1], QImode))"
"@
- copy %1,%0
+ copy %r1,%0
ldi %1,%0
ldil L'%1,%0
{zdepi|depwi,z} %Z1,%0
@@ -4047,12 +4047,12 @@
[(set (match_operand:DF 0 "move_dest_operand"
"=!*r,*r,*r,*r,*r,Q,f,f,T")
(match_operand:DF 1 "move_src_operand"
- "!*r,J,N,K,RQ,*rG,fG,RT,f"))]
+ "!*rG,J,N,K,RQ,*rG,fG,RT,f"))]
"(register_operand (operands[0], DFmode)
|| reg_or_0_operand (operands[1], DFmode))
&& !TARGET_SOFT_FLOAT && TARGET_64BIT"
"@
- copy %1,%0
+ copy %r1,%0
ldi %1,%0
ldil L'%1,%0
depdi,z %z1,%0
@@ -4069,12 +4069,12 @@
[(set (match_operand:DF 0 "move_dest_operand"
"=!*r,*r,*r,*r,*r,Q")
(match_operand:DF 1 "move_src_operand"
- "!*r,J,N,K,RQ,*rG"))]
+ "!*rG,J,N,K,RQ,*rG"))]
"(register_operand (operands[0], DFmode)
|| reg_or_0_operand (operands[1], DFmode))
&& TARGET_SOFT_FLOAT && TARGET_64BIT"
"@
- copy %1,%0
+ copy %r1,%0
ldi %1,%0
ldil L'%1,%0
depdi,z %z1,%0
@@ -4221,13 +4221,13 @@
[(set (match_operand:DI 0 "move_dest_operand"
"=r,r,r,r,r,r,Q,!*q,!r,!*f,*f,T")
(match_operand:DI 1 "move_src_operand"
- "A,r,J,N,K,RQ,rM,!rM,!*q,!*fM,RT,*f"))]
+ "A,rG,J,N,K,RQ,rM,!rM,!*q,!*fM,RT,*f"))]
"(register_operand (operands[0], DImode)
|| reg_or_0_operand (operands[1], DImode))
&& !TARGET_SOFT_FLOAT && TARGET_64BIT"
"@
ldd RT'%A1,%0
- copy %1,%0
+ copy %r1,%0
ldi %1,%0
ldil L'%1,%0
depdi,z %z1,%0
@@ -4246,13 +4246,13 @@
[(set (match_operand:DI 0 "move_dest_operand"
"=r,r,r,r,r,r,Q,!*q,!r")
(match_operand:DI 1 "move_src_operand"
- "A,r,J,N,K,RQ,rM,!rM,!*q"))]
+ "A,rG,J,N,K,RQ,rM,!rM,!*q"))]
"(register_operand (operands[0], DImode)
|| reg_or_0_operand (operands[1], DImode))
&& TARGET_SOFT_FLOAT && TARGET_64BIT"
"@
ldd RT'%A1,%0
- copy %1,%0
+ copy %r1,%0
ldi %1,%0
ldil L'%1,%0
depdi,z %z1,%0
