[PATCH] D112767: [clang][driver] Fix multiarch output name with -Wl arg

[Keith Smiley via Phabricator via cfe-commits]

keith created this revision.
keith added reviewers: ddunbar, JDevlieghere.
keith requested review of this revision.
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Previously if you passed a `-Wl,-foo` _before_ the source filename, the
first `InputInfos`, which is used for the base input name would be an
`InputArg` kind, which would never have a base input name. Now we use
that by default, but pick the first `InputInfo` that is of kind
`Filename` to get the name from if there is one.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D112767

Files:
  clang/lib/Driver/Driver.cpp
  clang/test/Driver/darwin-dsymutil.c


Index: clang/test/Driver/darwin-dsymutil.c
===================================================================
--- clang/test/Driver/darwin-dsymutil.c
+++ clang/test/Driver/darwin-dsymutil.c
@@ -51,6 +51,14 @@
 // CHECK-MULTIARCH-OUTPUT-NAME: "x86_64-apple-darwin10" - "darwin::Linker", inputs: ["{{.*}}{{/|\\}}darwin-dsymutil-x86_64.o"], output: "{{.*}}{{/|\\}}darwin-dsymutil-x86_64.out"
 // CHECK-MULTIARCH-OUTPUT-NAME: "arm64-apple-darwin10" - "darwin::Linker", inputs: ["{{.*}}{{/|\\}}darwin-dsymutil-arm64.o"], output: "{{.*}}{{/|\\}}darwin-dsymutil-arm64.out"
 // CHECK-MULTIARCH-OUTPUT-NAME: "arm64-apple-darwin10" - "darwin::Lipo", inputs: ["{{.*}}{{/|\\}}darwin-dsymutil-x86_64.out", "{{.*}}{{/|\\}}darwin-dsymutil-arm64.out"], output: "a.out"
+//
+// RUN: %clang -target x86_64-apple-darwin10 \
+// RUN:   -Wl,-foo -arch x86_64 -arch arm64 -ccc-print-bindings %s 2> %t
+// RUN: FileCheck --check-prefix=CHECK-MULTIARCH-OUTPUT-NAME-WITH-ARG < %t %s
+//
+// CHECK-MULTIARCH-OUTPUT-NAME-WITH-ARG: "x86_64-apple-darwin10" - "darwin::Linker", inputs: [(input arg), "{{.*}}{{/|\\}}darwin-dsymutil-x86_64.o"], output: "{{.*}}{{/|\\}}darwin-dsymutil-x86_64.out"
+// CHECK-MULTIARCH-OUTPUT-NAME-WITH-ARG: "arm64-apple-darwin10" - "darwin::Linker", inputs: [(input arg), "{{.*}}{{/|\\}}darwin-dsymutil-arm64.o"], output: "{{.*}}{{/|\\}}darwin-dsymutil-arm64.out"
+// CHECK-MULTIARCH-OUTPUT-NAME-WITH-ARG: "arm64-apple-darwin10" - "darwin::Lipo", inputs: ["{{.*}}{{/|\\}}darwin-dsymutil-x86_64.out", "{{.*}}{{/|\\}}darwin-dsymutil-arm64.out"], output: "a.out"
 
 // Check that we only use dsymutil when needed.
 //
Index: clang/lib/Driver/Driver.cpp
===================================================================
--- clang/lib/Driver/Driver.cpp
+++ clang/lib/Driver/Driver.cpp
@@ -4696,6 +4696,12 @@
 
   // Always use the first input as the base input.
   const char *BaseInput = InputInfos[0].getBaseInput();
+  for (auto &Info : InputInfos) {
+    if (Info.isFilename()) {
+      BaseInput = Info.getBaseInput();
+      break;
+    }
+  }
 
   // ... except dsymutil actions, which use their actual input as the base
   // input.


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