[Mesa-dev] [PATCH 79/92] ac/nir: implement nir_op_f2b

[Nicolai Hähnle]

From: Nicolai Hähnle <nicolai.haehnle at amd.com>

---
 src/amd/common/ac_nir_to_llvm.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c
index 0a5f1b3..c3993af 100644
--- a/src/amd/common/ac_nir_to_llvm.c
+++ b/src/amd/common/ac_nir_to_llvm.c
@@ -1300,20 +1300,29 @@ static LLVMValueRef emit_uint_carry(struct ac_llvm_context *ctx,
 	res = LLVMBuildZExt(ctx->builder, res, ctx->i32, "");
 	return res;
 }
 
 static LLVMValueRef emit_b2f(struct ac_llvm_context *ctx,
 			     LLVMValueRef src0)
 {
 	return LLVMBuildAnd(ctx->builder, src0, LLVMBuildBitCast(ctx->builder, LLVMConstReal(ctx->f32, 1.0), ctx->i32, ""), "");
 }
 
+static LLVMValueRef emit_f2b(struct ac_llvm_context *ctx,
+			     LLVMValueRef src0)
+{
+	src0 = to_float(ctx, src0);
+	return LLVMBuildSExt(ctx->builder,
+			     LLVMBuildFCmp(ctx->builder, LLVMRealUNE, src0, ctx->f32_0, ""),
+			     ctx->i32, "");
+}
+
 static LLVMValueRef emit_b2i(struct ac_llvm_context *ctx,
 			     LLVMValueRef src0)
 {
 	return LLVMBuildAnd(ctx->builder, src0, ctx->i32_1, "");
 }
 
 static LLVMValueRef emit_i2b(struct ac_llvm_context *ctx,
 			     LLVMValueRef src0)
 {
 	return LLVMBuildSExt(ctx->builder,
@@ -1836,20 +1845,23 @@ static void visit_alu(struct ac_nir_context *ctx, const nir_alu_instr *instr)
 		break;
 	case nir_op_uadd_carry:
 		result = emit_uint_carry(&ctx->ac, "llvm.uadd.with.overflow.i32", src[0], src[1]);
 		break;
 	case nir_op_usub_borrow:
 		result = emit_uint_carry(&ctx->ac, "llvm.usub.with.overflow.i32", src[0], src[1]);
 		break;
 	case nir_op_b2f:
 		result = emit_b2f(&ctx->ac, src[0]);
 		break;
+	case nir_op_f2b:
+		result = emit_f2b(&ctx->ac, src[0]);
+		break;
 	case nir_op_b2i:
 		result = emit_b2i(&ctx->ac, src[0]);
 		break;
 	case nir_op_i2b:
 		result = emit_i2b(&ctx->ac, src[0]);
 		break;
 	case nir_op_fquantize2f16:
 		result = emit_f2f16(ctx->nctx, src[0]);
 		break;
 	case nir_op_umul_high:
-- 
2.9.3