gallivm: allow additional llc options

In init_native_targets, allow the passing of additional options to
the LLC compiler via new GALLIVM_LLC_OPTIONS environmental control.
This option is available only #ifdef DEBUG, initially.
At top, add #include <llvm-c/Support.h> for LLVMParseCommandLineOptions()
declaration.

v2: Fix compile error with old llvm versions (sroland)

Cc: "17.2" <mesa-stable@lists.freedesktop.org>

Signed-off-by: Ben Crocker <bcrocker@redhat.com>
Acked-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
This commit is contained in:
Ben Crocker 2017-09-28 14:09:11 -04:00 committed by Roland Scheidegger
parent 3a9feb4db8
commit 5c75f0c8bb

View file

@ -49,6 +49,9 @@
#endif
#include <llvm-c/Core.h>
#if HAVE_LLVM >= 0x0306
#include <llvm-c/Support.h>
#endif
#include <llvm-c/ExecutionEngine.h>
#include <llvm/Target/TargetOptions.h>
#include <llvm/ExecutionEngine/ExecutionEngine.h>
@ -122,6 +125,26 @@ static void init_native_targets()
llvm::InitializeNativeTargetAsmPrinter();
llvm::InitializeNativeTargetDisassembler();
#if DEBUG && HAVE_LLVM >= 0x0306
{
char *env_llc_options = getenv("GALLIVM_LLC_OPTIONS");
if (env_llc_options) {
char *option;
char *options[64] = {(char *) "llc"}; // Warning without cast
int n;
for (n = 0, option = strtok(env_llc_options, " "); option; n++, option = strtok(NULL, " ")) {
options[n + 1] = option;
}
if (gallivm_debug & (GALLIVM_DEBUG_IR | GALLIVM_DEBUG_ASM | GALLIVM_DEBUG_DUMP_BC)) {
debug_printf("llc additional options (%d):\n", n);
for (int i = 1; i <= n; i++)
debug_printf("\t%s\n", options[i]);
debug_printf("\n");
}
LLVMParseCommandLineOptions(n + 1, options, NULL);
}
}
#endif
}
extern "C" void