https://gcc.gnu.org/g:95752870fb5c51868a084b94705a83d728be52c8
commit r16-1593-g95752870fb5c51868a084b94705a83d728be52c8
Author: Andrew Stubbs <a...@baylibre.com>
Date: Fri Jun 20 16:43:37 2025 +0000
amdgcn: allow SImode in VCC_HI [PR120722]
This patch isn't fully tested yet, but it fixes the build failure, so that
will do for now. SImode was not allowed in VCC_HI because there were
issues,
way back before the port went upstream, so it's possible we'll find out what
those issues were again soon.
gcc/ChangeLog:
PR target/120722
* config/gcn/gcn.cc (gcn_hard_regno_mode_ok): Allow SImode in
VCC_HI.
Diff:
---
gcc/config/gcn/gcn.cc | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/gcc/config/gcn/gcn.cc b/gcc/config/gcn/gcn.cc
index 31a59dd6f22f..2d8dfa3232e2 100644
--- a/gcc/config/gcn/gcn.cc
+++ b/gcc/config/gcn/gcn.cc
@@ -585,9 +585,8 @@ gcn_hard_regno_mode_ok (unsigned int regno, machine_mode
mode)
case XNACK_MASK_HI_REG:
case TBA_HI_REG:
case TMA_HI_REG:
- return mode == SImode;
case VCC_HI_REG:
- return false;
+ return mode == SImode;
case EXEC_HI_REG:
return mode == SImode /*|| mode == V32BImode */ ;
case SCC_REG:
