From 715a5c85f7db0146b2df19452958e26d15d6eab8 Mon Sep 17 00:00:00 2001 From: Bill Schmidt Date: Mon, 3 Mar 2014 01:33:24 +0000 Subject: [PATCH] constraints.md: Document reserved use of "wc". 2014-03-02 Bill Schmidt * config/rs6000/constraints.md: Document reserved use of "wc". From-SVN: r208266 --- gcc/ChangeLog | 4 ++++ gcc/config/rs6000/constraints.md | 3 +++ 2 files changed, 7 insertions(+) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index c05694693b06..9acf6ec66798 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2014-03-02 Bill Schmidt + + * config/rs6000/constraints.md: Document reserved use of "wc". + 2014-03-02 Jan Hubicka PR ipa/60150 diff --git a/gcc/config/rs6000/constraints.md b/gcc/config/rs6000/constraints.md index 50b0e2972146..50fb101e85c3 100644 --- a/gcc/config/rs6000/constraints.md +++ b/gcc/config/rs6000/constraints.md @@ -56,6 +56,9 @@ (define_register_constraint "wa" "rs6000_constraints[RS6000_CONSTRAINT_wa]" "Any VSX register if the -mvsx option was used or NO_REGS.") +;; NOTE: For compatibility, "wc" is reserved to represent individual CR bits. +;; It is currently used for that purpose in LLVM. + (define_register_constraint "wd" "rs6000_constraints[RS6000_CONSTRAINT_wd]" "VSX vector register to hold vector double data or NO_REGS.") -- 2.47.2