The instruction sequence generated for 64-bit indirect calls on hppa does not
clobber register %r1, so
the clobbers for this register can be removed.
Tested on hppa64-hp-hpux11.11 with no observed regressions.
Dave
--
John David Anglin dave.ang...@bell.net
2016-06-06 John David Anglin <dang...@gcc.gnu.org>
* config/pa/pa.md (call_val_reg_64bit): Remove "reg: DI " clobber from
pattern and subsequent splitters.
(call_val_reg_64bit_post_reload): Likewise.
Index: config/pa/pa.md
===================================================================
--- config/pa/pa.md (revision 237110)
+++ config/pa/pa.md (working copy)
@@ -8133,7 +8133,6 @@
[(set (match_operand 0 "" "")
(call (mem:SI (match_operand:DI 1 "register_operand" "r"))
(match_operand 2 "" "i")))
- (clobber (reg:DI 1))
(clobber (reg:DI 2))
(clobber (match_operand 3))
(use (reg:DI 27))
@@ -8155,7 +8154,6 @@
[(parallel [(set (match_operand 0 "" "")
(call (mem:SI (match_operand:DI 1 "register_operand" ""))
(match_operand 2 "" "")))
- (clobber (reg:DI 1))
(clobber (reg:DI 2))
(clobber (match_operand 3))
(use (reg:DI 27))
@@ -8167,7 +8165,6 @@
(parallel [(set (match_dup 0)
(call (mem:SI (match_dup 1))
(match_dup 2)))
- (clobber (reg:DI 1))
(clobber (reg:DI 2))
(use (reg:DI 27))
(use (reg:DI 29))
@@ -8178,7 +8175,6 @@
[(parallel [(set (match_operand 0 "" "")
(call (mem:SI (match_operand:DI 1 "register_operand" ""))
(match_operand 2 "" "")))
- (clobber (reg:DI 1))
(clobber (reg:DI 2))
(clobber (match_operand 3))
(use (reg:DI 27))
@@ -8189,7 +8185,6 @@
(parallel [(set (match_dup 0)
(call (mem:SI (match_dup 1))
(match_dup 2)))
- (clobber (reg:DI 1))
(clobber (reg:DI 2))
(use (reg:DI 27))
(use (reg:DI 29))
@@ -8201,7 +8196,6 @@
[(set (match_operand 0 "" "")
(call (mem:SI (match_operand:DI 1 "register_operand" "r"))
(match_operand 2 "" "i")))
- (clobber (reg:DI 1))
(clobber (reg:DI 2))
(use (reg:DI 27))
(use (reg:DI 29))
