[Mesa-dev] [PATCH 3/3] nir/spirv: Use fill_common_atomic_sources for image atomics

[Jason Ekstrand]

We had two almost identical copies of this code and they were both broken
but in different ways.  The previous two commits fixed both of them.  This
one just unifies them so that it's easier to handle in the future.

Signed-off-by: Jason Ekstrand <jason at jlekstrand.net>
---
 src/compiler/spirv/spirv_to_nir.c | 99 +++++++++++++++++----------------------
 1 file changed, 43 insertions(+), 56 deletions(-)

diff --git a/src/compiler/spirv/spirv_to_nir.c b/src/compiler/spirv/spirv_to_nir.c
index 0d6a70e..e91a7b2 100644
--- a/src/compiler/spirv/spirv_to_nir.c
+++ b/src/compiler/spirv/spirv_to_nir.c
@@ -1589,6 +1589,47 @@ vtn_handle_texture(struct vtn_builder *b, SpvOp opcode,
    nir_builder_instr_insert(&b->nb, &instr->instr);
 }
 
+static void
+fill_common_atomic_sources(struct vtn_builder *b, SpvOp opcode,
+                           const uint32_t *w, nir_src *src)
+{
+   switch (opcode) {
+   case SpvOpAtomicIIncrement:
+      src[0] = nir_src_for_ssa(nir_imm_int(&b->nb, 1));
+      break;
+
+   case SpvOpAtomicIDecrement:
+      src[0] = nir_src_for_ssa(nir_imm_int(&b->nb, -1));
+      break;
+
+   case SpvOpAtomicISub:
+      src[0] =
+         nir_src_for_ssa(nir_ineg(&b->nb, vtn_ssa_value(b, w[6])->def));
+      break;
+
+   case SpvOpAtomicCompareExchange:
+      src[0] = nir_src_for_ssa(vtn_ssa_value(b, w[8])->def);
+      src[1] = nir_src_for_ssa(vtn_ssa_value(b, w[7])->def);
+      break;
+      /* Fall through */
+
+   case SpvOpAtomicExchange:
+   case SpvOpAtomicIAdd:
+   case SpvOpAtomicSMin:
+   case SpvOpAtomicUMin:
+   case SpvOpAtomicSMax:
+   case SpvOpAtomicUMax:
+   case SpvOpAtomicAnd:
+   case SpvOpAtomicOr:
+   case SpvOpAtomicXor:
+      src[0] = nir_src_for_ssa(vtn_ssa_value(b, w[6])->def);
+      break;
+
+   default:
+      unreachable("Invalid SPIR-V atomic");
+   }
+}
+
 static nir_ssa_def *
 get_image_coord(struct vtn_builder *b, uint32_t value)
 {
@@ -1729,13 +1770,9 @@ vtn_handle_image(struct vtn_builder *b, SpvOp opcode,
    case SpvOpImageWrite:
       intrin->src[2] = nir_src_for_ssa(vtn_ssa_value(b, w[3])->def);
       break;
+
    case SpvOpAtomicIIncrement:
-      intrin->src[2] = nir_src_for_ssa(nir_imm_int(&b->nb, 1));
-      break;
    case SpvOpAtomicIDecrement:
-      intrin->src[2] = nir_src_for_ssa(nir_imm_int(&b->nb, -1));
-      break;
-
    case SpvOpAtomicExchange:
    case SpvOpAtomicIAdd:
    case SpvOpAtomicSMin:
@@ -1745,16 +1782,7 @@ vtn_handle_image(struct vtn_builder *b, SpvOp opcode,
    case SpvOpAtomicAnd:
    case SpvOpAtomicOr:
    case SpvOpAtomicXor:
-      intrin->src[2] = nir_src_for_ssa(vtn_ssa_value(b, w[6])->def);
-      break;
-
-   case SpvOpAtomicCompareExchange:
-      intrin->src[2] = nir_src_for_ssa(vtn_ssa_value(b, w[8])->def);
-      intrin->src[3] = nir_src_for_ssa(vtn_ssa_value(b, w[7])->def);
-      break;
-
-   case SpvOpAtomicISub:
-      intrin->src[2] = nir_src_for_ssa(nir_ineg(&b->nb, vtn_ssa_value(b, w[6])->def));
+      fill_common_atomic_sources(b, opcode, w, &intrin->src[2]);
       break;
 
    default:
@@ -1829,47 +1857,6 @@ get_shared_nir_atomic_op(SpvOp opcode)
 }
 
 static void
-fill_common_atomic_sources(struct vtn_builder *b, SpvOp opcode,
-                           const uint32_t *w, nir_src *src)
-{
-   switch (opcode) {
-   case SpvOpAtomicIIncrement:
-      src[0] = nir_src_for_ssa(nir_imm_int(&b->nb, 1));
-      break;
-
-   case SpvOpAtomicIDecrement:
-      src[0] = nir_src_for_ssa(nir_imm_int(&b->nb, -1));
-      break;
-
-   case SpvOpAtomicISub:
-      src[0] =
-         nir_src_for_ssa(nir_ineg(&b->nb, vtn_ssa_value(b, w[6])->def));
-      break;
-
-   case SpvOpAtomicCompareExchange:
-      src[0] = nir_src_for_ssa(vtn_ssa_value(b, w[8])->def);
-      src[1] = nir_src_for_ssa(vtn_ssa_value(b, w[7])->def);
-      break;
-      /* Fall through */
-
-   case SpvOpAtomicExchange:
-   case SpvOpAtomicIAdd:
-   case SpvOpAtomicSMin:
-   case SpvOpAtomicUMin:
-   case SpvOpAtomicSMax:
-   case SpvOpAtomicUMax:
-   case SpvOpAtomicAnd:
-   case SpvOpAtomicOr:
-   case SpvOpAtomicXor:
-      src[0] = nir_src_for_ssa(vtn_ssa_value(b, w[6])->def);
-      break;
-
-   default:
-      unreachable("Invalid SPIR-V atomic");
-   }
-}
-
-static void
 vtn_handle_ssbo_or_shared_atomic(struct vtn_builder *b, SpvOp opcode,
                                  const uint32_t *w, unsigned count)
 {
-- 
2.5.0.400.gff86faf