[compiler-rt] r274870 - Added comments identifing code source

[Alina Sbirlea via llvm-commits]

Author: asbirlea
Date: Fri Jul  8 11:18:41 2016
New Revision: 274870

URL: http://llvm.org/viewvc/llvm-project?rev=274870&view=rev
Log:
Added comments identifing code source

Modified:
    compiler-rt/trunk/lib/builtins/cpu_model.c

Modified: compiler-rt/trunk/lib/builtins/cpu_model.c
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/builtins/cpu_model.c?rev=274870&r1=274869&r2=274870&view=diff
==============================================================================
--- compiler-rt/trunk/lib/builtins/cpu_model.c (original)
+++ compiler-rt/trunk/lib/builtins/cpu_model.c Fri Jul  8 11:18:41 2016
@@ -119,6 +119,7 @@ enum ProcessorFeatures {
   FEATURE_EM64T
 };
 
+// The check below fori386 was copied from clang's cpuid.h.
 static bool isCpuIdSupported() {
 #if defined(i386) || defined(__i386__)
   int __cpuid_supported;
@@ -144,6 +145,9 @@ static bool isCpuIdSupported() {
   return 1;
 }
 
+// This code is copied from lib/Support/Host.cpp.
+// Changes to either file should be mirrored in the other.
+
 #if defined(i386) || defined(__i386__) || defined(__x86__) ||                  \
     defined(_M_IX86) || defined(__x86_64__) || defined(_M_AMD64) ||            \
     defined(_M_X64)