According to the following definition,
int AtomicCompSwap(inout int mem, uint compare, uint data);
the preceding one in atomic_comp_swap of NIR is compare and data is
followed, while src0 for cmpxchg needs vec2(data, compare)
So for ssbo/image deref comp_swap, that should be reversed.
Fixes: dEQP-GLES31.functional.image_load_store.*.atomic.comp_swap*
---
src/gallium/drivers/freedreno/ir3/ir3_compiler_nir.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/gallium/drivers/freedreno/ir3/ir3_compiler_nir.c
b/src/gallium/drivers/freedreno/ir3/ir3_compiler_nir.c
index 79314140d8..8f749f4110 100644
--- a/src/gallium/drivers/freedreno/ir3/ir3_compiler_nir.c
+++ b/src/gallium/drivers/freedreno/ir3/ir3_compiler_nir.c
@@ -1626,8 +1626,8 @@ emit_intrinsic_atomic_ssbo(struct ir3_context *ctx,
nir_intrinsic_instr *intr)
case nir_intrinsic_ssbo_atomic_comp_swap:
/* for cmpxchg, src0 is [ui]vec2(data, compare): */
src0 = create_collect(ctx, (struct ir3_instruction*[]){
- src0,
get_src(ctx, &intr->src[3])[0],
+ src0,
}, 2);
atomic = ir3_ATOMIC_CMPXCHG_G(b, ssbo, 0, src0, 0, src1, 0,
src2, 0);
break;
@@ -2095,8 +2095,8 @@ emit_intrinsic_atomic_image(struct ir3_context *ctx,
nir_intrinsic_instr *intr)
case nir_intrinsic_image_deref_atomic_comp_swap:
/* for cmpxchg, src0 is [ui]vec2(data, compare): */
src0 = create_collect(ctx, (struct ir3_instruction*[]){
- src0,
get_src(ctx, &intr->src[4])[0],
+ src0,
}, 2);
atomic = ir3_ATOMIC_CMPXCHG_G(b, image, 0, src0, 0, src1, 0,
src2, 0);
break;
--
2.17.1
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