ac: fix ac_build_bitfield_reverse() for 16-bit integer type

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

diff --git a/src/amd/common/ac_llvm_build.c b/src/amd/common/ac_llvm_build.c
index aff8f67..ae1502a 100644 (file)
--- a/src/amd/common/ac_llvm_build.c
+++ b/src/amd/common/ac_llvm_build.c
@@ -2576,6 +2576,8 @@ LLVMValueRef ac_build_bitfield_reverse(struct ac_llvm_context *ctx,
                result = ac_build_intrinsic(ctx, "llvm.bitreverse.i16", ctx->i16,
                                            (LLVMValueRef []) { src0 }, 1,
                                            AC_FUNC_ATTR_READNONE);
+
+               result = LLVMBuildZExt(ctx->builder, result, ctx->i32, "");
                break;
        default:
                unreachable(!"invalid bitsize");