[lld][MachO] Allow separate --irpgo-profile flag (#121354)

Author: ellishg

lld/MachO/Driver.cpp

@@ -1842,7 +1842,7 @@ bool link(ArrayRef<const char *> argsArr, llvm::raw_ostream &stdoutOS,
       args.hasArg(OPT_irpgo_profile_sort_eq))
     warn("--irpgo-profile-sort is deprecated. Please use "
          "--bp-startup-sort=function");
-  if (const Arg *arg = args.getLastArg(OPT_irpgo_profile_eq))
+  if (const Arg *arg = args.getLastArg(OPT_irpgo_profile))
     config->irpgoProfilePath = arg->getValue();
 
   if (const Arg *arg = args.getLastArg(OPT_irpgo_profile_sort)) {

lld/MachO/Options.td

@@ -126,8 +126,10 @@ def no_call_graph_profile_sort : Flag<["--"], "no-call-graph-profile-sort">,
 def print_symbol_order_eq: Joined<["--"], "print-symbol-order=">,
     HelpText<"Print a symbol order specified by --call-graph-profile-sort into the specified file">,
     Group<grp_lld>;
+def irpgo_profile: Separate<["--"], "irpgo-profile">, Group<grp_lld>;
 def irpgo_profile_eq: Joined<["--"], "irpgo-profile=">,
-    HelpText<"Read the IRPGO profile for use with -bp-startup-sort and other profile-guided optimizations">,
+    Alias<!cast<Separate>(irpgo_profile)>, MetaVarName<"<profile>">,
+    HelpText<"Read the IRPGO <profile> for use with -bp-startup-sort and other profile-guided optimizations">,
     Group<grp_lld>;
 def bp_startup_sort: Joined<["--"], "bp-startup-sort=">,
     MetaVarName<"[none,function]">,

lld/test/MachO/bp-section-orderer-errs.s

@@ -14,8 +14,9 @@
 # RUN: not %lld -o /dev/null --bp-compression-sort-startup-functions 2>&1 | FileCheck %s --check-prefix=STARTUP
 # STARTUP: --bp-compression-sort-startup-functions must be used with --bp-startup-sort=function
 
+# RUN: not %lld -o /dev/null --irpgo-profile %s --bp-startup-sort=function --call-graph-profile-sort 2>&1 | FileCheck %s --check-prefix=IRPGO-STARTUP
 # RUN: not %lld -o /dev/null --irpgo-profile=%s --bp-startup-sort=function --call-graph-profile-sort 2>&1 | FileCheck %s --check-prefix=IRPGO-STARTUP
 # IRPGO-STARTUP: --bp-startup-sort= is incompatible with --call-graph-profile-sort
 
 # RUN: not %lld -o /dev/null --bp-startup-sort=function 2>&1 | FileCheck %s --check-prefix=STARTUP-COMPRESSION
-# STARTUP-COMPRESSION: --bp-startup-sort=function must be used with --irpgo-profile
+# STARTUP-COMPRESSION: --bp-startup-sort=function must be used with --irpgo-profile

lld/test/MachO/bp-section-orderer.s

@@ -7,7 +7,7 @@
 # RUN: %no-fatal-warnings-lld -arch arm64 -lSystem -e _main -o %t/a.out %t/a.o --irpgo-profile-sort=%t/a.profdata --verbose-bp-section-orderer 2>&1 | FileCheck %s --check-prefix=STARTUP
 # RUN: %no-fatal-warnings-lld -arch arm64 -lSystem -e _main -o %t/a.out %t/a.o --irpgo-profile-sort=%t/a.profdata --verbose-bp-section-orderer --icf=all --compression-sort=none 2>&1 | FileCheck %s --check-prefix=STARTUP
 
-# RUN: %lld -arch arm64 -lSystem -e _main -o %t/a.out %t/a.o --irpgo-profile=%t/a.profdata --bp-startup-sort=function --verbose-bp-section-orderer 2>&1 | FileCheck %s --check-prefix=STARTUP
+# RUN: %lld -arch arm64 -lSystem -e _main -o %t/a.out %t/a.o --irpgo-profile %t/a.profdata --bp-startup-sort=function --verbose-bp-section-orderer 2>&1 | FileCheck %s --check-prefix=STARTUP
 # RUN: %lld -arch arm64 -lSystem -e _main -o %t/a.out %t/a.o --irpgo-profile=%t/a.profdata --bp-startup-sort=function --verbose-bp-section-orderer --icf=all --bp-compression-sort=none 2>&1 | FileCheck %s --check-prefix=STARTUP
 # STARTUP: Ordered 3 sections using balanced partitioning