r256855 - [PGO] Enable clang to pass compiler-rt profile support library to linker on Windows

[Nathan Slingerland via cfe-commits]

Author: slingn
Date: Tue Jan  5 12:27:06 2016
New Revision: 256855

URL: http://llvm.org/viewvc/llvm-project?rev=256855&view=rev
Log:
[PGO] Enable clang to pass compiler-rt profile support library to linker on Windows

Summary: This change enables clang to automatically link binaries built with the -fprofile-instr-generate against the clang_rt.profile-i386.lib library.

Reviewers: davidxl, dnovillo

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D15833

Modified:
    cfe/trunk/lib/Driver/Tools.cpp
    cfe/trunk/test/Driver/instrprof-ld.c

Modified: cfe/trunk/lib/Driver/Tools.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/Tools.cpp?rev=256855&r1=256854&r2=256855&view=diff
==============================================================================
--- cfe/trunk/lib/Driver/Tools.cpp (original)
+++ cfe/trunk/lib/Driver/Tools.cpp Tue Jan  5 12:27:06 2016
@@ -9473,6 +9473,8 @@ void visualstudio::Linker::ConstructJob(
     A.renderAsInput(Args, CmdArgs);
   }
 
+  TC.addProfileRTLibs(Args, CmdArgs);
+
   // We need to special case some linker paths.  In the case of lld, we need to
   // translate 'lld' into 'lld-link', and in the case of the regular msvc
   // linker, we need to use a special search algorithm.

Modified: cfe/trunk/test/Driver/instrprof-ld.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/instrprof-ld.c?rev=256855&r1=256854&r2=256855&view=diff
==============================================================================
--- cfe/trunk/test/Driver/instrprof-ld.c (original)
+++ cfe/trunk/test/Driver/instrprof-ld.c Tue Jan  5 12:27:06 2016
@@ -105,3 +105,19 @@
 //
 // CHECK-WATCHOS-ARMV7: "{{(.*[^-.0-9A-Z_a-z])?}}ld{{(.exe)?}}"
 // CHECK-WATCHOS-ARMV7: "{{.*}}/Inputs/resource_dir{{/|\\\\}}lib{{/|\\\\}}darwin{{/|\\\\}}libclang_rt.profile_watchos.a"
+//
+// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
+// RUN:     -target i386-pc-win32 -fprofile-instr-generate \
+// RUN:     -resource-dir=%S/Inputs/resource_dir \
+// RUN:   | FileCheck --check-prefix=CHECK-WINDOWS-I386 %s
+//
+// CHECK-WINDOWS-I386: "{{.*}}link{{(.exe)?}}"
+// CHECK-WINDOWS-I386: "{{.*}}clang_rt.profile-i386.lib"
+//
+// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
+// RUN:     -target x86_64-pc-win32 -fprofile-instr-generate \
+// RUN:     -resource-dir=%S/Inputs/resource_dir \
+// RUN:   | FileCheck --check-prefix=CHECK-WINDOWS-X86-64 %s
+//
+// CHECK-WINDOWS-X86-64: "{{.*}}link{{(.exe)?}}"
+// CHECK-WINDOWS-X86-64: "{{.*}}clang_rt.profile-x86_64.lib"