ac/radeonsi: create ac_build_shader_clock() helper

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
2018-02-02 13:54:48 +11:00
parent d116af383f
commit b7b89bbddb
3 changed files with 11 additions and 5 deletions
--- a/src/amd/common/ac_llvm_build.c
+++ b/src/amd/common/ac_llvm_build.c
@@ -343,6 +343,14 @@ ac_build_optimization_barrier(struct ac_llvm_context *ctx,
 	}
 }

+LLVMValueRef
+ac_build_shader_clock(struct ac_llvm_context *ctx)
+{
+	LLVMValueRef tmp = ac_build_intrinsic(ctx, "llvm.readcyclecounter",
+					      ctx->i64, NULL, 0, 0);
+	return LLVMBuildBitCast(ctx->builder, tmp, ctx->v2i32, "");
+}
+
 LLVMValueRef
 ac_build_ballot(struct ac_llvm_context *ctx,
 		LLVMValueRef value)