diff options
| author | Matthew Gretton-Dann <matthew.gretton-dann@linaro.org> | 2013-05-14 09:13:58 +0000 |
|---|---|---|
| committer | Matthew Gretton-Dann <matthew.gretton-dann@linaro.org> | 2013-05-14 09:13:58 +0000 |
| commit | b4fcb647d8bd393cd85585e850892c9d1f741d8a (patch) | |
| tree | 3101282b812fb9d1b65ed26ea8e23141631719df /gcc/config | |
| parent | 49d58c0d67c6c0f631f6a414c8d22172f62144a3 (diff) | |
Backport from trunk r197838.
git-svn-id: https://gcc.gnu.org/svn/gcc/branches/linaro/gcc-4_8-branch@198865 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/config')
| -rw-r--r-- | gcc/config/aarch64/aarch64.c | 3 | ||||
| -rw-r--r-- | gcc/config/aarch64/aarch64.md | 15 |
2 files changed, 17 insertions, 1 deletions
diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c index 501136b07fa..1615a16b53a 100644 --- a/gcc/config/aarch64/aarch64.c +++ b/gcc/config/aarch64/aarch64.c @@ -3087,7 +3087,8 @@ aarch64_select_cc_mode (RTX_CODE code, rtx x, rtx y) if ((GET_MODE (x) == SImode || GET_MODE (x) == DImode) && y == const0_rtx && (code == EQ || code == NE || code == LT || code == GE) - && (GET_CODE (x) == PLUS || GET_CODE (x) == MINUS || GET_CODE (x) == AND)) + && (GET_CODE (x) == PLUS || GET_CODE (x) == MINUS || GET_CODE (x) == AND + || GET_CODE (x) == NEG)) return CC_NZmode; /* A compare with a shifted operand. Because of canonicalization, diff --git a/gcc/config/aarch64/aarch64.md b/gcc/config/aarch64/aarch64.md index ff8fdc4193e..1564ce1de6a 100644 --- a/gcc/config/aarch64/aarch64.md +++ b/gcc/config/aarch64/aarch64.md @@ -2039,6 +2039,21 @@ (set_attr "mode" "SI")] ) +(define_insn "*neg_<shift><mode>3_compare0" + [(set (reg:CC_NZ CC_REGNUM) + (compare:CC_NZ + (neg:GPI (ASHIFT:GPI + (match_operand:GPI 1 "register_operand" "r") + (match_operand:QI 2 "aarch64_shift_imm_<mode>" "n"))) + (const_int 0))) + (set (match_operand:GPI 0 "register_operand" "=r") + (neg:GPI (ASHIFT:GPI (match_dup 1) (match_dup 2))))] + "" + "negs\\t%<w>0, %<w>1, <shift> %2" + [(set_attr "v8type" "alus_shift") + (set_attr "mode" "<MODE>")] +) + (define_insn "*neg_<shift>_<mode>2" [(set (match_operand:GPI 0 "register_operand" "=r") (neg:GPI (ASHIFT:GPI |