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* [gcc r13-1582] [PATCH][s390]: Fix the usage of store_bit_field in the backend.
@ 2022-07-09 1:56 Jeff Law
0 siblings, 0 replies; only message in thread
From: Jeff Law @ 2022-07-09 1:56 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:84ff566c63cde517c7d963a554e338531fb059f1
commit r13-1582-g84ff566c63cde517c7d963a554e338531fb059f1
Author: Tamar Christina <tamar.christina@arm.com>
Date: Fri Jul 8 21:54:44 2022 -0400
[PATCH][s390]: Fix the usage of store_bit_field in the backend.
Hi All,
I seem to have broken the s390 bootstrap because I added a new parameter to the
store_bit_field function to indicate whether the value the field of is being set
is currently undefined.
If it's undefined we use a subreg instead. In this case the value of false
restores the old behavior.
Ok for master?
Thanks,
Tamar
gcc/ChangeLog:
* config/s390/s390.cc (s390_expand_atomic): Pass false to store_bit_field to
indicate that the value is not undefined.
Diff:
---
gcc/config/s390/s390.cc | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/gcc/config/s390/s390.cc b/gcc/config/s390/s390.cc
index 444b1ec20d7..5aaf76a9490 100644
--- a/gcc/config/s390/s390.cc
+++ b/gcc/config/s390/s390.cc
@@ -7468,7 +7468,7 @@ s390_expand_atomic (machine_mode mode, enum rtx_code code,
case SET:
if (ac.aligned && MEM_P (val))
store_bit_field (new_rtx, GET_MODE_BITSIZE (mode), 0,
- 0, 0, SImode, val, false);
+ 0, 0, SImode, val, false, false);
else
{
new_rtx = expand_simple_binop (SImode, AND, new_rtx, ac.modemaski,
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