From 271067967ae24d0fc6deb96821824b2fc19cf2c8 Mon Sep 17 00:00:00 2001 From: Timothy Arceri Date: Fri, 19 Jan 2018 10:04:26 +1100 Subject: ac: add support for gl_HelperInvocation MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Reviewed-by: Nicolai Hähnle --- src/amd/common/ac_nir_to_llvm.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'src/amd') diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c index 1e592db57a8..b90c31320c0 100644 --- a/src/amd/common/ac_nir_to_llvm.c +++ b/src/amd/common/ac_nir_to_llvm.c @@ -3915,6 +3915,17 @@ static void emit_discard(struct ac_nir_context *ctx, ac_build_kill_if_false(&ctx->ac, cond); } +static LLVMValueRef +visit_load_helper_invocation(struct ac_nir_context *ctx) +{ + LLVMValueRef result = ac_build_intrinsic(&ctx->ac, + "llvm.amdgcn.ps.live", + ctx->ac.i1, NULL, 0, + AC_FUNC_ATTR_READNONE); + result = LLVMBuildNot(ctx->ac.builder, result, ""); + return LLVMBuildSExt(ctx->ac.builder, result, ctx->ac.i32, ""); +} + static LLVMValueRef visit_load_local_invocation_index(struct nir_to_llvm_context *ctx) { @@ -4354,6 +4365,9 @@ static void visit_intrinsic(struct ac_nir_context *ctx, case nir_intrinsic_load_front_face: result = ctx->abi->front_face; break; + case nir_intrinsic_load_helper_invocation: + result = visit_load_helper_invocation(ctx); + break; case nir_intrinsic_load_instance_id: result = ctx->abi->instance_id; break; -- cgit v1.2.3