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[release/8.0-rc2] Fixes for LLVM AOT on Windows from @lateralusX #92365

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Sep 21, 2023
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20 changes: 16 additions & 4 deletions src/mono/mono/mini/aot-compiler.c
Original file line number Diff line number Diff line change
Expand Up @@ -10708,6 +10708,18 @@ execute_system (const char * command)

#ifdef ENABLE_LLVM

#ifdef HOST_WIN32
#define OPT_NAME "opt.exe"
#else
#define OPT_NAME "opt"
#endif

#ifdef HOST_WIN32
#define LLC_NAME "llc.exe"
#else
#define LLC_NAME "llc"
#endif

/*
* emit_llvm_file:
*
Expand Down Expand Up @@ -10776,11 +10788,11 @@ emit_llvm_file (MonoAotCompile *acfg)
} else {
#if LLVM_API_VERSION >= 1600
/* The safepoints pass requires new pass manager syntax*/
opts = g_strdup ("-disable-tail-calls -passes='");
opts = g_strdup ("-disable-tail-calls -passes=\"");
if (!acfg->aot_opts.llvm_only) {
opts = g_strdup_printf ("%sdefault<O2>,", opts);
}
opts = g_strdup_printf ("%splace-safepoints' -spp-all-backedges", opts);
opts = g_strdup_printf ("%splace-safepoints\" -spp-all-backedges", opts);
#elif LLVM_API_VERSION >= 1300
/* The safepoints pass requires the old pass manager */
opts = g_strdup ("-disable-tail-calls -place-safepoints -spp-all-backedges -enable-new-pm=0");
Expand Down Expand Up @@ -10810,7 +10822,7 @@ emit_llvm_file (MonoAotCompile *acfg)
opts = g_strdup_printf ("%s -fp-contract=fast -enable-no-infs-fp-math -enable-no-nans-fp-math -enable-no-signed-zeros-fp-math -enable-no-trapping-fp-math -enable-unsafe-fp-math", opts);
}

command = g_strdup_printf ("\"%sopt\" -f %s -o \"%s\" \"%s\"", acfg->aot_opts.llvm_path, opts, optbc, tempbc);
command = g_strdup_printf ("\"%s" OPT_NAME "\" -f %s -o \"%s\" \"%s\"", acfg->aot_opts.llvm_path, opts, optbc, tempbc);
aot_printf (acfg, "Executing opt: %s\n", command);
if (execute_system (command) != 0)
return FALSE;
Expand Down Expand Up @@ -10885,7 +10897,7 @@ emit_llvm_file (MonoAotCompile *acfg)
g_string_append_printf (acfg->llc_args, " -mattr=%s", acfg->aot_opts.llvm_cpu_attr);
}

command = g_strdup_printf ("\"%sllc\" %s -o \"%s\" \"%s.opt.bc\"", acfg->aot_opts.llvm_path, acfg->llc_args->str, output_fname, acfg->tmpbasename);
command = g_strdup_printf ("\"%s" LLC_NAME "\" %s -o \"%s\" \"%s.opt.bc\"", acfg->aot_opts.llvm_path, acfg->llc_args->str, output_fname, acfg->tmpbasename);
g_free (output_fname);

aot_printf (acfg, "Executing llc: %s\n", command);
Expand Down