From ddb4dac13341d5b33b9e129ecb0e2abec30a27b6 Mon Sep 17 00:00:00 2001
From: Tom Stellard <thomas.stellard@amd.com>
Date: Tue, 24 Apr 2012 13:31:07 -0400
Subject: [PATCH] r600g/llvm: Don't duplicate R600 intrinsics installed by LLVM

At this point, in order for OpenCL to work correctly with r600g, OpenCL
specific intrinsics need to be defined in the LLVM tree.  So, we need
to check for these intrinsics in the LLVM include directory to make sure
not to re-define them.
---
 src/gallium/drivers/radeon/Makefile              |  9 +++++++++
 src/gallium/drivers/radeon/Makefile.sources      |  1 +
 ...00Intrinsics.td => R600IntrinsicsNoOpenCL.td} |  0
 .../drivers/radeon/R600IntrinsicsOpenCL.td       | 16 ++++++++++++++++
 4 files changed, 26 insertions(+)
 rename src/gallium/drivers/radeon/{R600Intrinsics.td => R600IntrinsicsNoOpenCL.td} (100%)
 create mode 100644 src/gallium/drivers/radeon/R600IntrinsicsOpenCL.td

diff --git a/src/gallium/drivers/radeon/Makefile b/src/gallium/drivers/radeon/Makefile
index 807dc781c7c..13aa3605dcd 100644
--- a/src/gallium/drivers/radeon/Makefile
+++ b/src/gallium/drivers/radeon/Makefile
@@ -18,6 +18,8 @@ CXXFLAGS := $(filter-out -DDEBUG, $(CXXFLAGS))
 
 tablegen = $(TBLGEN) -I $(LLVM_INCLUDEDIR) $1 $2 -o $3
 
+HAVE_LLVM_INTRINSICS = $(shell grep IntrinsicsR600.td $(LLVM_INCLUDEDIR)/llvm/Intrinsics.td)
+
 gen: $(GENERATED_SOURCES)
 
 SIRegisterInfo.td: SIGenRegisterInfo.pl
@@ -26,6 +28,13 @@ SIRegisterInfo.td: SIGenRegisterInfo.pl
 SIRegisterGetHWRegNum.inc: SIGenRegisterInfo.pl
 	$(PERL) $^ $@ > /dev/null
 
+R600Intrinsics.td: R600IntrinsicsNoOpenCL.td R600IntrinsicsOpenCL.td
+ifeq ($(HAVE_LLVM_INTRINSICS),)
+	cp R600IntrinsicsNoOpenCL.td R600Intrinsics.td
+else
+	cp R600IntrinsicsOpenCL.td R600Intrinsics.td
+endif
+
 R600ShaderPatterns.td: AMDGPUGenShaderPatterns.pl
 	$(PERL) $^ C > $@
 	
diff --git a/src/gallium/drivers/radeon/Makefile.sources b/src/gallium/drivers/radeon/Makefile.sources
index 7d2932b4dbd..6e649152120 100644
--- a/src/gallium/drivers/radeon/Makefile.sources
+++ b/src/gallium/drivers/radeon/Makefile.sources
@@ -1,5 +1,6 @@
 
 GENERATED_SOURCES := \
+	R600Intrinsics.td		\
 	R600ShaderPatterns.td		\
 	R600RegisterInfo.td		\
 	AMDGPUInstrEnums.td		\
diff --git a/src/gallium/drivers/radeon/R600Intrinsics.td b/src/gallium/drivers/radeon/R600IntrinsicsNoOpenCL.td
similarity index 100%
rename from src/gallium/drivers/radeon/R600Intrinsics.td
rename to src/gallium/drivers/radeon/R600IntrinsicsNoOpenCL.td
diff --git a/src/gallium/drivers/radeon/R600IntrinsicsOpenCL.td b/src/gallium/drivers/radeon/R600IntrinsicsOpenCL.td
new file mode 100644
index 00000000000..cd761358475
--- /dev/null
+++ b/src/gallium/drivers/radeon/R600IntrinsicsOpenCL.td
@@ -0,0 +1,16 @@
+//===-- R600Intrinsics.td - TODO: Add brief description -------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// TODO: Add full description
+//
+//===----------------------------------------------------------------------===//
+
+let TargetPrefix = "R600", isTarget = 1 in {
+  def int_R600_load_input : Intrinsic<[llvm_float_ty], [llvm_i32_ty], [IntrReadWriteArgMem]>;
+}
-- 
2.30.2