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authorTom Stellard <thomas.stellard@amd.com>2013-11-13 18:52:14 -0800
committerIan Romanick <ian.d.romanick@intel.com>2013-11-26 13:10:29 -0800
commitbab6f40b29e77d00bf3dbc898c3547470fe3a4fe (patch)
tree18634f93ee3a013eeca59790f904035b0bae0459 /src/gallium
parentc0c3fa564bec749ef874f1b24523aa85f6cd088e (diff)
radeon/compute: Unconditionally inline all functions v2
We need to do this until function calls are supported. v2: - Fix loop conditional https://bugs.freedesktop.org/show_bug.cgi?id=64225 CC: "10.0" <mesa-stable@lists.freedesktop.org> (cherry picked from commit ddc77c5092b6f782327a7014b320f31f5f4e8e93)
Diffstat (limited to 'src/gallium')
-rw-r--r--src/gallium/drivers/radeon/radeon_llvm_util.c22
1 files changed, 20 insertions, 2 deletions
diff --git a/src/gallium/drivers/radeon/radeon_llvm_util.c b/src/gallium/drivers/radeon/radeon_llvm_util.c
index f2b3e136d47..3ba0acc55bc 100644
--- a/src/gallium/drivers/radeon/radeon_llvm_util.c
+++ b/src/gallium/drivers/radeon/radeon_llvm_util.c
@@ -30,6 +30,7 @@
#include <llvm-c/BitReader.h>
#include <llvm-c/Core.h>
#include <llvm-c/Target.h>
+#include <llvm-c/Transforms/IPO.h>
#include <llvm-c/Transforms/PassManagerBuilder.h>
LLVMModuleRef radeon_llvm_parse_bitcode(const unsigned char * bitcode,
@@ -59,9 +60,26 @@ static void radeon_llvm_optimize(LLVMModuleRef mod)
LLVMTargetDataRef TD = LLVMCreateTargetData(data_layout);
LLVMPassManagerBuilderRef builder = LLVMPassManagerBuilderCreate();
LLVMPassManagerRef pass_manager = LLVMCreatePassManager();
- LLVMAddTargetData(TD, pass_manager);
- LLVMPassManagerBuilderUseInlinerWithThreshold(builder, 1000000000);
+ /* Functions calls are not supported yet, so we need to inline
+ * everything. The most efficient way to do this is to add
+ * the always_inline attribute to all non-kernel functions
+ * and then run the Always Inline pass. The Always Inline
+ * pass will automaically inline functions with this attribute
+ * and does not perform the expensive cost analysis that the normal
+ * inliner does.
+ */
+
+ LLVMValueRef fn;
+ for (fn = LLVMGetFirstFunction(mod); fn; fn = LLVMGetNextFunction(fn)) {
+ /* All the non-kernel functions have internal linkage */
+ if (LLVMGetLinkage(fn) == LLVMInternalLinkage) {
+ LLVMAddFunctionAttr(fn, LLVMAlwaysInlineAttribute);
+ }
+ }
+
+ LLVMAddTargetData(TD, pass_manager);
+ LLVMAddAlwaysInlinerPass(pass_manager);
LLVMPassManagerBuilderPopulateModulePassManager(builder, pass_manager);
LLVMRunPassManager(pass_manager, mod);