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radeon/llvm: Run standard optimization passes on conpute shader modules

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The SROA and function inliner passes are espically important, because
they optimize away unsupported features: functions and indirect
private memory access.
This commit is contained in:
Tom Stellard 2013-05-14 08:56:25 -07:00
parent ccb041fe8e
commit e230d9debb
1 changed files with 15 additions and 0 deletions
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15
src/gallium/drivers/radeon/radeon_llvm_util.c
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@ -29,6 +29,7 @@
#include <llvm-c/BitReader.h>
#include <llvm-c/Core.h>
#include <llvm-c/Transforms/PassManagerBuilder.h>
LLVMModuleRef radeon_llvm_parse_bitcode(const unsigned char * bitcode,
unsigned bitcode_len)
@ -50,6 +51,19 @@ unsigned radeon_llvm_get_num_kernels(const unsigned char *bitcode,
return LLVMGetNamedMetadataNumOperands(mod, "opencl.kernels");
}
static void radeon_llvm_optimize(LLVMModuleRef mod)
{
LLVMPassManagerBuilderRef builder = LLVMPassManagerBuilderCreate();
LLVMPassManagerRef pass_manager = LLVMCreatePassManager();
LLVMPassManagerBuilderUseInlinerWithThreshold(builder, 1000000000);
LLVMPassManagerBuilderPopulateModulePassManager(builder, pass_manager);
LLVMRunPassManager(pass_manager, mod);
LLVMPassManagerBuilderDispose(builder);
LLVMDisposePassManager(pass_manager);
}
LLVMModuleRef radeon_llvm_get_kernel_module(unsigned index,
const unsigned char *bitcode, unsigned bitcode_len)
{
@ -72,5 +86,6 @@ LLVMModuleRef radeon_llvm_get_kernel_module(unsigned index,
LLVMDeleteFunction(kernel_function);
}
FREE(kernel_metadata);
radeon_llvm_optimize(mod);
return mod;
}