secondary targets are gone, simplify this.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48067 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/NOTES.txt b/NOTES.txt
index 623f01c..0f4a8de 100644
--- a/NOTES.txt
+++ b/NOTES.txt
@@ -102,39 +102,11 @@
// Specifying targets: -triple and -arch
===---------------------------------------------------------------------===//
-The clang supports "-triple" and "-arch" options. At most one -triple option may
-be specified, while multiple -arch options can be specified. Both are optional.
+The clang supports "-triple" and "-arch" options. At most one -triple and one
+-arch option may be specified. Both are optional.
The "selection of target" behavior is defined as follows:
-(1) If the user does not specify -triple:
-
- (a) If no -arch options are specified, the target triple used is the host
- triple (in llvm/Config/config.h).
-
- (b) If one or more -arch's are specified (and no -triple), then there is
- one triple for each -arch, where the specified arch is substituted
- for the arch in the host triple. Example:
-
- host triple = i686-apple-darwin9
- command: clang -arch ppc -arch ppc64 ...
- triples used: ppc-apple-darwin9 ppc64-apple-darwin9
-
-(2) The user does specify a -triple (only one allowed):
-
- (a) If no -arch options are specified, the triple specified by -triple
- is used. E.g clang -triple i686-apple-darwin9
-
- (b) If one or more -arch options are specified, then the triple specified
- by -triple is used as the primary target, and the arch's specified
- by -arch are used to create secondary targets. For example:
-
- clang -triple i686-apple-darwin9 -arch ppc -arch ppc64
-
- has the following targets:
-
- i686-apple-darwin9 (primary target)
- ppc-apple-darwin9 (secondary target)
- ppc64-apple-darwin9 (secondary target)
-
-The secondary targets are used in the 'portability' model (see below).
+(1) If the user does not specify -triple, we default to the host triple.
+(2) If the user specifies a -arch, that overrides the arch in the host or
+ specified triple.