s.egerton updated this revision to Diff 43131.
s.egerton marked 4 inline comments as done.
s.egerton added a comment.

Responded to reviewers comments.

The -mips* option is now saved until all arguments have been parsed. The last 
-mips* option is the only one pushed back.
The tests are now updated to check that multiple -target-feature -mips* options 
are not present.


http://reviews.llvm.org/D15070

Files:
  lib/Driver/Tools.cpp
  test/Driver/mips-ias-Wa.s

Index: test/Driver/mips-ias-Wa.s
===================================================================
--- test/Driver/mips-ias-Wa.s
+++ test/Driver/mips-ias-Wa.s
@@ -47,3 +47,91 @@
 // RUN:   FileCheck -check-prefix=MSOFT-FLOAT-BOTH-MHARD-FLOAT-FIRST %s
 // MSOFT-FLOAT-BOTH-MHARD-FLOAT-FIRST: -cc1as
 // MSOFT-FLOAT-BOTH-MHARD-FLOAT-FIRST: "-target-feature" "-soft-float" "-target-feature" "+soft-float"
+
+// RUN: %clang -target mips-linux-gnu -### -fintegrated-as -c %s -Wa,-mips1 2>&1 | \
+// RUN:   FileCheck -check-prefix=MIPS1 %s
+// MIPS1: -cc1as
+// MIPS1: "-target-feature" "+mips1"
+
+// RUN: %clang -target mips-linux-gnu -### -fintegrated-as -c %s -Wa,-mips2 2>&1 | \
+// RUN:   FileCheck -check-prefix=MIPS2 %s
+// MIPS2: -cc1as
+// MIPS2: "-target-feature" "+mips2"
+
+// RUN: %clang -target mips-linux-gnu -### -fintegrated-as -c %s -Wa,-mips3 2>&1 | \
+// RUN:   FileCheck -check-prefix=MIPS3 %s
+// MIPS3: -cc1as
+// MIPS3: "-target-feature" "+mips3"
+
+// RUN: %clang -target mips-linux-gnu -### -fintegrated-as -c %s -Wa,-mips4 2>&1 | \
+// RUN:   FileCheck -check-prefix=MIPS4 %s
+// MIPS4: -cc1as
+// MIPS4: "-target-feature" "+mips4"
+
+// RUN: %clang -target mips-linux-gnu -### -fintegrated-as -c %s -Wa,-mips5 2>&1 | \
+// RUN:   FileCheck -check-prefix=MIPS5 %s
+// MIPS5: -cc1as
+// MIPS5: "-target-feature" "+mips5"
+
+// RUN: %clang -target mips-linux-gnu -### -fintegrated-as -c %s -Wa,-mips32 2>&1 | \
+// RUN:   FileCheck -check-prefix=MIPS32 %s
+// MIPS32: -cc1as
+// MIPS32: "-target-feature" "+mips32"
+
+// RUN: %clang -target mips-linux-gnu -### -fintegrated-as -c %s -Wa,-mips32r2 2>&1 | \
+// RUN:   FileCheck -check-prefix=MIPS32R2 %s
+// MIPS32R2: -cc1as
+// MIPS32R2: "-target-feature" "+mips32r2"
+
+// RUN: %clang -target mips-linux-gnu -### -fintegrated-as -c %s -Wa,-mips32r3 2>&1 | \
+// RUN:   FileCheck -check-prefix=MIPS32R3 %s
+// MIPS32R3: -cc1as
+// MIPS32R3: "-target-feature" "+mips32r3"
+
+// RUN: %clang -target mips-linux-gnu -### -fintegrated-as -c %s -Wa,-mips32r5 2>&1 | \
+// RUN:   FileCheck -check-prefix=MIPS32R5 %s
+// MIPS32R5: -cc1as
+// MIPS32R5: "-target-feature" "+mips32r5"
+
+// RUN: %clang -target mips-linux-gnu -### -fintegrated-as -c %s -Wa,-mips32r6 2>&1 | \
+// RUN:   FileCheck -check-prefix=MIPS32R6 %s
+// MIPS32R6: -cc1as
+// MIPS32R6: "-target-feature" "+mips32r6"
+
+// RUN: %clang -target mips-linux-gnu -### -fintegrated-as -c %s -Wa,-mips64 2>&1 | \
+// RUN:   FileCheck -check-prefix=MIPS64 %s
+// MIPS64: -cc1as
+// MIPS64: "-target-feature" "+mips64"
+
+// RUN: %clang -target mips-linux-gnu -### -fintegrated-as -c %s -Wa,-mips64r2 2>&1 | \
+// RUN:   FileCheck -check-prefix=MIPS64R2 %s
+// MIPS64R2: -cc1as
+// MIPS64R2: "-target-feature" "+mips64r2"
+
+// RUN: %clang -target mips-linux-gnu -### -fintegrated-as -c %s -Wa,-mips64r3 2>&1 | \
+// RUN:   FileCheck -check-prefix=MIPS64R3 %s
+// MIPS64R3: -cc1as
+// MIPS64R3: "-target-feature" "+mips64r3"
+
+// RUN: %clang -target mips-linux-gnu -### -fintegrated-as -c %s -Wa,-mips64r5 2>&1 | \
+// RUN:   FileCheck -check-prefix=MIPS64R5 %s
+// MIPS64R5: -cc1as
+// MIPS64R5: "-target-feature" "+mips64r5"
+
+// RUN: %clang -target mips-linux-gnu -### -fintegrated-as -c %s -Wa,-mips64r6 2>&1 | \
+// RUN:   FileCheck -check-prefix=MIPS64R6 %s
+// MIPS64R6: -cc1as
+// MIPS64R6: "-target-feature" "+mips64r6"
+
+// RUN: %clang -target mips-linux-gnu -### -fintegrated-as -c %s -Wa,-mips64r2,-mips4 2>&1 | \
+// RUN:   FileCheck -check-prefix=MIPS64R2-MIPS4 %s
+// MIPS64R2-MIPS4: -cc1as
+// MIPS64R2-MIPS4: "-target-feature" "+mips4"
+// MIPS64R2-MIPS4-NOT: "-target-feature" "+mips64r2"
+
+// RUN: %clang -target mips-linux-gnu -### -fintegrated-as -c %s -Wa,-mips64,-mips32,-mips32r2 2>&1 | \
+// RUN:   FileCheck -check-prefix=MIPS64-MIPS32-MIPS32R2 %s
+// MIPS64-MIPS32-MIPS32R2: -cc1as
+// MIPS64-MIPS32-MIPS32R2: "-target-feature" "+mips32r2"
+// MIPS64-MIPS32-MIPS32R2-NOT: "-target-feature" "+mips64"
+// MIPS64-MIPS32-MIPS32R2-NOT: "-target-feature" "+mips32"
Index: lib/Driver/Tools.cpp
===================================================================
--- lib/Driver/Tools.cpp
+++ lib/Driver/Tools.cpp
@@ -2460,6 +2460,7 @@
   // When using an integrated assembler, translate -Wa, and -Xassembler
   // options.
   bool CompressDebugSections = false;
+  const char *MipsTargetFeature = "";
   for (const Arg *A :
        Args.filtered(options::OPT_Wa_COMMA, options::OPT_Xassembler)) {
     A->claim();
@@ -2498,7 +2499,25 @@
           CmdArgs.push_back("-soft-float");
           continue;
         }
-        break;
+
+        MipsTargetFeature = llvm::StringSwitch<const char *>(Value)
+                      .Case("-mips1", "+mips1")
+                      .Case("-mips2", "+mips2")
+                      .Case("-mips3", "+mips3")
+                      .Case("-mips4", "+mips4")
+                      .Case("-mips5", "+mips5")
+                      .Case("-mips32", "+mips32")
+                      .Case("-mips32r2", "+mips32r2")
+                      .Case("-mips32r3", "+mips32r3")
+                      .Case("-mips32r5", "+mips32r5")
+                      .Case("-mips32r6", "+mips32r6")
+                      .Case("-mips64", "+mips64")
+                      .Case("-mips64r2", "+mips64r2")
+                      .Case("-mips64r3", "+mips64r3")
+                      .Case("-mips64r5", "+mips64r5")
+                      .Case("-mips64r6", "+mips64r6")
+                      .Default("");
+        continue;
       }
 
       if (Value == "-force_cpusubtype_ALL") {
@@ -2545,6 +2564,11 @@
     else
       D.Diag(diag::warn_debug_compression_unavailable);
   }
+  StringRef MipsFeatureStringRef = MipsTargetFeature;
+  if (MipsFeatureStringRef != "") {
+    CmdArgs.push_back("-target-feature");
+    CmdArgs.push_back(MipsTargetFeature);
+  }
 }
 
 // This adds the static libclang_rt.builtins-arch.a directly to the command line
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