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radeon/llvm: show LLVM disassembly when available

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With code dump enabled LLVM may generate disassembly during compilation.
Show this disassembly when available and prefer it to SI bytecode dump.

Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
Signed-off-by: Jay Cornwall <jay@jcornwall.me>
This commit is contained in:
Jay Cornwall 2013-10-10 20:06:48 -05:00 • committed by Tom Stellard
parent 7681beedd1
commit d7d539a1cb
3 changed files with 9 additions and 1 deletions
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7
src/gallium/drivers/radeon/radeon_llvm_emit.c
View file

@ -143,6 +143,7 @@ unsigned radeon_llvm_compile(LLVMModuleRef M, struct radeon_llvm_binary *binary,
elf = elf_memory(elf_buffer, buffer_size);
elf_getshdrstrndx(elf, &section_str_index);
binary->disassembled = 0;
while ((section = elf_nextscn(elf, section))) {
const char *name;
@ -163,6 +164,12 @@ unsigned radeon_llvm_compile(LLVMModuleRef M, struct radeon_llvm_binary *binary,
binary->config_size = section_data->d_size;
binary->config = MALLOC(binary->config_size * sizeof(unsigned char));
memcpy(binary->config, section_data->d_buf, binary->config_size);
} else if (dump && !strcmp(name, ".AMDGPU.disasm")) {
binary->disassembled = 1;
section_data = elf_getdata(section, section_data);
fprintf(stderr, "\nShader Disassembly:\n\n");
fprintf(stderr, "%.*s\n", (int)section_data->d_size,
(char *)section_data->d_buf);
}
}

1
src/gallium/drivers/radeon/radeon_llvm_emit.h
View file

@ -34,6 +34,7 @@ struct radeon_llvm_binary {
unsigned code_size;
unsigned char *config;
unsigned config_size;
int disassembled;
};
void radeon_llvm_shader_type(LLVMValueRef F, unsigned type);

2
src/gallium/drivers/radeonsi/radeonsi_shader.c
View file

@ -1764,7 +1764,7 @@ int si_compile_llvm(struct r600_context *rctx, struct si_pipe_shader *shader,
memset(&binary, 0, sizeof(binary));
radeon_llvm_compile(mod, &binary,
r600_get_llvm_processor_name(rctx->screen->b.family), dump);
if (dump) {
if (dump && ! binary.disassembled) {
fprintf(stderr, "SI CODE:\n");
for (i = 0; i < binary.code_size; i+=4 ) {
fprintf(stderr, "%02x%02x%02x%02x\n", binary.code[i + 3],