ac: add ac_build_bit_count() helper

[mesa.git] / src / amd / common / ac_nir_to_llvm.c

diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c
index a3f26ab46c98940ca5c8c86bf30ee03b595669f4..d79ff4399b1fe42f9071393b331f479e9aa28b45 100644 (file)
--- a/src/amd/common/ac_nir_to_llvm.c
+++ b/src/amd/common/ac_nir_to_llvm.c
@@ -839,12 +839,7 @@ static void visit_alu(struct ac_nir_context *ctx, const nir_alu_instr *instr)
                result = ac_build_intrinsic(&ctx->ac, "llvm.bitreverse.i32", ctx->ac.i32, src, 1, AC_FUNC_ATTR_READNONE);
                break;
        case nir_op_bit_count:
-               if (ac_get_elem_bits(&ctx->ac, LLVMTypeOf(src[0])) == 32)
-                       result = ac_build_intrinsic(&ctx->ac, "llvm.ctpop.i32", ctx->ac.i32, src, 1, AC_FUNC_ATTR_READNONE);
-               else {
-                       result = ac_build_intrinsic(&ctx->ac, "llvm.ctpop.i64", ctx->ac.i64, src, 1, AC_FUNC_ATTR_READNONE);
-                       result = LLVMBuildTrunc(ctx->ac.builder, result, ctx->ac.i32, "");
-               }
+               result = ac_build_bit_count(&ctx->ac, src[0]);
                break;
        case nir_op_vec2:
        case nir_op_vec3: