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| author | Rong Xu <xur@google.com> | 2014-07-21 16:47:22 -0700 |
|---|---|---|
| committer | Rong Xu <xur@google.com> | 2014-07-29 15:31:03 -0700 |
| commit | 38a8aecfb882072900434499696b5c32a2274515 (patch) | |
| tree | 2aac97f0ae24b03cd98c1a06e989c031c173f889 /gcc-4.9/gcc/tree.def | |
| parent | c231900e5dcc14d8296bd9f62b45997a49d4d5e7 (diff) | |
| download | toolchain_gcc-38a8aecfb882072900434499696b5c32a2274515.tar.gz toolchain_gcc-38a8aecfb882072900434499696b5c32a2274515.tar.bz2 toolchain_gcc-38a8aecfb882072900434499696b5c32a2274515.zip | |
[4.9] Switch gcc-4.9 to use google/gcc-4_9 branch.
This source drop uses svn version r212828 of google/gcc-4.9 branch.
We also cherry-picked r213062, r213063 and r213064 to fix windows
build issues.
All gcc-4.9 patches before July 3rd are ported to google/gcc-4.9.
The following prior commits has not been merged to google branch yet.
(They are included in this commit).
e7af147f979e657fe2df00808e5b4319b0e088c6,
baf87df3cb2683649ba7e9872362a7e721117c23, and
c231900e5dcc14d8296bd9f62b45997a49d4d5e7.
Change-Id: I4bea3ea470387ff751c2be4cb0d4a12059b9299b
Diffstat (limited to 'gcc-4.9/gcc/tree.def')
| -rw-r--r-- | gcc-4.9/gcc/tree.def | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/tree.def b/gcc-4.9/gcc/tree.def index f8d64447d..2e8fe1fdc 100644 --- a/gcc-4.9/gcc/tree.def +++ b/gcc-4.9/gcc/tree.def @@ -1172,6 +1172,22 @@ DEFTREECODE (DOT_PROD_EXPR, "dot_prod_expr", tcc_expression, 3) with the second argument. */ DEFTREECODE (WIDEN_SUM_EXPR, "widen_sum_expr", tcc_binary, 2) +/* Widening sad (sum of absolute differences). + The first two arguments are of type t1 which should be integer. + The third argument and the result are of type t2, such that t2 is at least + twice the size of t1. Like DOT_PROD_EXPR, SAD_EXPR (arg1,arg2,arg3) is + equivalent to (note we don't have WIDEN_MINUS_EXPR now, but we assume its + behavior is similar to WIDEN_SUM_EXPR): + tmp = WIDEN_MINUS_EXPR (arg1, arg2) + tmp2 = ABS_EXPR (tmp) + arg3 = PLUS_EXPR (tmp2, arg3) + or: + tmp = WIDEN_MINUS_EXPR (arg1, arg2) + tmp2 = ABS_EXPR (tmp) + arg3 = WIDEN_SUM_EXPR (tmp2, arg3) + */ +DEFTREECODE (SAD_EXPR, "sad_expr", tcc_expression, 3) + /* Widening multiplication. The two arguments are of type t1. The result is of type t2, such that t2 is at least twice |