[Mesa-dev] [PATCH] radv/ac: canonicalize the output for 32-bit float min/max.

[Dave Airlie]

From: Dave Airlie <airlied at redhat.com>

This fixes:
dEQP-VK.glsl.builtin.precision.min.*
dEQP-VK.glsl.builtin.precision.max.*
dEQP-VK.glsl.builtin.precision.clamp.*

As weren't flushing the denorms as SPIR-V required.

Signed-off-by: Dave Airlie <airlied at redhat.com>
---
 src/amd/common/ac_nir_to_llvm.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c
index bb53386..122df7f 100644
--- a/src/amd/common/ac_nir_to_llvm.c
+++ b/src/amd/common/ac_nir_to_llvm.c
@@ -1449,16 +1449,18 @@ static void visit_alu(struct nir_to_llvm_context *ctx, nir_alu_instr *instr)
 	case nir_op_fmax:
 		result = emit_intrin_2f_param(ctx, "llvm.maxnum",
 		                              to_float_type(ctx, def_type), src[0], src[1]);
-		result = emit_intrin_1f_param(ctx, "llvm.canonicalize",
-					      to_float_type(ctx, def_type),
-					      result);
+		if (instr->dest.dest.ssa.bit_size == 32)
+			result = emit_intrin_1f_param(ctx, "llvm.canonicalize",
+						      to_float_type(ctx, def_type),
+						      result);
 		break;
 	case nir_op_fmin:
 		result = emit_intrin_2f_param(ctx, "llvm.minnum",
 		                              to_float_type(ctx, def_type), src[0], src[1]);
-		result = emit_intrin_1f_param(ctx, "llvm.canonicalize",
-					      to_float_type(ctx, def_type),
-					      result);
+		if (instr->dest.dest.ssa.bit_size == 32)
+			result = emit_intrin_1f_param(ctx, "llvm.canonicalize",
+						      to_float_type(ctx, def_type),
+						      result);
 		break;
 	case nir_op_ffma:
 		result = emit_intrin_3f_param(ctx, "llvm.fma",
-- 
2.9.3