diff mbox series

[committed] hppa: Fix decrement_and_branch_until_zero constraint

Message ID ZzOuMoZVIBjS7GVa@mx3210.local
State New
Headers show
Series [committed] hppa: Fix decrement_and_branch_until_zero constraint | expand

Commit Message

John David Anglin Nov. 12, 2024, 7:36 p.m. UTC 
Noticed reload1.cc was miscompiled with LRA.

Tested on hppa-unknown-linux-gnu and hppa64-hp-hpux11.11.  Committed
to active branches.

Dave
---

hppa: Fix decrement_and_branch_until_zero constraint

The third alternative for argument 4 needs to be an early clobber
constraint.  Noticed testing LRA.

2024-11-12  John David Anglin  <danglin@gcc.gnu.org>

gcc/ChangeLog:

	* config/pa/pa.md (decrement_and_branch_until_zero): Fix
	constraint.
diff mbox series

Patch

diff --git a/gcc/config/pa/pa.md b/gcc/config/pa/pa.md
index bf59b7f601e..360198e9d08 100644
--- a/gcc/config/pa/pa.md
+++ b/gcc/config/pa/pa.md
@@ -9567,7 +9567,7 @@  add,l %2,%3,%3\;bv,n %%r0(%3)"
 	  (pc)))
    (set (match_dup 0)
 	(plus:SI (match_dup 0) (match_dup 1)))
-   (clobber (match_scratch:SI 4 "=X,r,r"))]
+   (clobber (match_scratch:SI 4 "=X,r,&r"))]
   ""
   "* return pa_output_dbra (operands, insn, which_alternative); "
 ;; Do not expect to understand this the first time through.