The offset needs to be properly copied over to the phi value, otherwise
it will get assigned to the base of the merge instead of the proper
location.
Signed-off-by: Ilia Mirkin <imir...@alum.mit.edu>
Cc: mesa-sta...@lists.freedesktop.org
---
src/gallium/drivers/nouveau/codegen/nv50_ir_ra.cpp | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_ra.cpp
b/src/gallium/drivers/nouveau/codegen/nv50_ir_ra.cpp
index 7e64f7c..d36c853 100644
--- a/src/gallium/drivers/nouveau/codegen/nv50_ir_ra.cpp
+++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_ra.cpp
@@ -1905,8 +1905,10 @@ GCRA::resolveSplitsAndMerges()
// their registers should be identical.
if (v->getInsn()->op == OP_PHI || v->getInsn()->op == OP_UNION) {
Instruction *phi = v->getInsn();
- for (int phis = 0; phi->srcExists(phis); ++phis)
+ for (int phis = 0; phi->srcExists(phis); ++phis) {
phi->getSrc(phis)->join = v;
+ phi->getSrc(phis)->reg.data.id = v->reg.data.id;
+ }
}
reg += v->reg.size;
}
--
2.7.3
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