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| author | Bill Schmidt <wschmidt@linux.vnet.ibm.com> | 2014-03-03 01:33:24 +0000 |
|---|---|---|
| committer | William Schmidt <wschmidt@gcc.gnu.org> | 2014-03-03 01:33:24 +0000 |
| commit | 715a5c85f7db0146b2df19452958e26d15d6eab8 (patch) | |
| tree | 5aa0cf980fd6ff400d131cab5e59a2f18951a090 /gcc | |
| parent | dbdbf36aa9b096796b66242ae5ba0483825e7777 (diff) | |
| download | gcc-715a5c85f7db0146b2df19452958e26d15d6eab8.zip gcc-715a5c85f7db0146b2df19452958e26d15d6eab8.tar.gz gcc-715a5c85f7db0146b2df19452958e26d15d6eab8.tar.bz2 | |
constraints.md: Document reserved use of "wc".
2014-03-02 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
* config/rs6000/constraints.md: Document reserved use of "wc".
From-SVN: r208266
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/config/rs6000/constraints.md | 3 |
2 files changed, 7 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index c056946..9acf6ec 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2014-03-02 Bill Schmidt <wschmidt@linux.vnet.ibm.com> + + * config/rs6000/constraints.md: Document reserved use of "wc". + 2014-03-02 Jan Hubicka <hubicka@ucw.cz> PR ipa/60150 diff --git a/gcc/config/rs6000/constraints.md b/gcc/config/rs6000/constraints.md index 50b0e29..50fb101 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.") |