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aco: print assembly with CLRXdisasm for GFX6-GFX7 if found on the system 

LLVM only supports GFX8+. Using CLRXdisasm works most of the time,
so it's useful to add support for it.

Original patch by Daniel Schürmann.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3439>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3439>
This commit is contained in:
Samuel Pitoiset 2020-01-17 09:49:44 +01:00 committed by Marge Bot
parent 51de5d5ac6
commit 0099f85232
1 changed files with 39 additions and 1 deletions
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40
src/amd/compiler/aco_print_asm.cpp
View File

@ -8,13 +8,51 @@
namespace aco {
/* LLVM disassembler only supports GFX8+, try to disassemble with CLRXdisasm
* for GFX6-GFX7 if found on the system, this is better than nothing.
*/
void print_asm_gfx6_gfx7(Program *program, std::vector<uint32_t>& binary,
std::ostream& out)
{
char path[] = "/tmp/fileXXXXXX";
char line[2048], command[128];
FILE *p;
int fd;
/* Dump the binary into a temporary file. */
fd = mkstemp(path);
if (fd < 0)
return;
for (uint32_t w : binary)
{
if (write(fd, &w, sizeof(w)) == -1)
goto fail;
}
sprintf(command, "clrxdisasm --gpuType=%s -r %s",
program->chip_class == GFX6 ? "gfx600" : "gfx700", path);
p = popen(command, "r");
if (p) {
while (fgets(line, sizeof(line), p))
out << line;
pclose(p);
}
fail:
close(fd);
unlink(path);
}
void print_asm(Program *program, std::vector<uint32_t>& binary,
unsigned exec_size, std::ostream& out)
{
if (program->chip_class <= GFX7) {
out << "Disassembly for this GPU currently not supported." << std::endl;
print_asm_gfx6_gfx7(program, binary, out);
return;
}
std::vector<bool> referenced_blocks(program->blocks.size());
referenced_blocks[0] = true;
for (Block& block : program->blocks) {