[PATCH] D155408: [Driver] Also warn about -mwatchos-version-min and -mtvos-version-min

[Cassie Jones via Phabricator via cfe-commits]

porglezomp created this revision.
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Sometimes users pass this option when targeting embedded architectures like armv7m on non-darwin platforms.
This applies to watchOS and tvOS as well as iOS.

Depends on D155407 <https://reviews.llvm.org/D155407>


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D155408

Files:
  clang/lib/Driver/ToolChains/Darwin.cpp
  clang/test/Driver/macho-embedded.c


Index: clang/test/Driver/macho-embedded.c
===================================================================
--- clang/test/Driver/macho-embedded.c
+++ clang/test/Driver/macho-embedded.c
@@ -8,12 +8,14 @@
 
 // RUN: %clang -arch armv7m --target=thumbv7-apple-ios -mios-version-min=5 -fdriver-only -c %s 2>&1 | FileCheck %s --check-prefix=CHECK-MACHO-EMBEDDED-DIAG
 // RUN: %clang -arch armv7m --target=thumbv7-apple-ios -mios-version-min=5 -mios-version-min=5 -fdriver-only -c %s 2>&1 | FileCheck %s --check-prefix=CHECK-MACHO-EMBEDDED-DIAG
+// RUN: %clang -arch armv7m --target=thumbv7-apple-watchos -mwatchos-version-min=5 -fdriver-only -c %s 2>&1 | FileCheck %s --check-prefix=CHECK-MACHO-EMBEDDED-DIAG
+// RUN: %clang -arch armv7m --target=thumbv7-apple-tvos -mtvos-version-min=5 -fdriver-only -c %s 2>&1 | FileCheck %s --check-prefix=CHECK-MACHO-EMBEDDED-DIAG
 
 // CHECK-IOS: "-triple" "thumbv7" "thumbv7-apple-ios
 
 // CHECK-AAPCS: "-target-abi" "aapcs"
 // CHECK-APCS: "-target-abi" "apcs-gnu"
 
-// CHECK-MACHO-EMBEDDED-DIAG: warning: argument unused during compilation: '-mios-version-min=5'
+// CHECK-MACHO-EMBEDDED-DIAG: warning: argument unused during compilation: '-m{{ios|watchos|tvos}}-version-min=5'
 // CHECK-MACHO-EMBEDDED: "-triple" "{{thumbv[67]e?m}}-apple-unknown-macho"
 // CHECK-MACHO-EMBEDDED: "-mrelocation-model" "pic"
Index: clang/lib/Driver/ToolChains/Darwin.cpp
===================================================================
--- clang/lib/Driver/ToolChains/Darwin.cpp
+++ clang/lib/Driver/ToolChains/Darwin.cpp
@@ -85,10 +85,16 @@
   if (ArchKind == llvm::ARM::ArchKind::ARMV6M ||
       ArchKind == llvm::ARM::ArchKind::ARMV7M ||
       ArchKind == llvm::ARM::ArchKind::ARMV7EM) {
-    // Don't reject -mios-version-min= if we have an iOS triple.
+    // Don't reject these -version-min= if we have the appropriate triple.
     if (T.isiOS())
       for (Arg *A : Args.filtered(options::OPT_mios_version_min_EQ))
         A->ignoreTargetSpecific();
+    if (T.isWatchOS())
+      for (Arg *A : Args.filtered(options::OPT_mwatchos_version_min_EQ))
+        A->ignoreTargetSpecific();
+    if (T.isTvOS())
+      for (Arg *A : Args.filtered(options::OPT_mtvos_version_min_EQ))
+        A->ignoreTargetSpecific();
 
     T.setOS(llvm::Triple::UnknownOS);
     T.setObjectFormat(llvm::Triple::MachO);


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