diff options
Diffstat (limited to 'gcc/config/sparc')
| -rw-r--r-- | gcc/config/sparc/sparc.md | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/gcc/config/sparc/sparc.md b/gcc/config/sparc/sparc.md index 5f8afeb..293893d 100644 --- a/gcc/config/sparc/sparc.md +++ b/gcc/config/sparc/sparc.md @@ -1418,6 +1418,26 @@ "" "andcc %1,0xff,%0" [(set_attr "type" "unary")]) + +;; Similarly, handle SI->QI mode truncation followed by a compare. + +(define_insn "" + [(set (reg:CC 0) + (compare:CC (subreg:QI (match_operand:SI 0 "register_operand" "r") 0) + (const_int 0)))] + "" + "andcc %0,0xff,%%g0" + [(set_attr "type" "compare")]) + +(define_insn "" + [(set (reg:CC 0) + (compare:CC (subreg:QI (match_operand:SI 1 "register_operand" "r") 0) + (const_int 0))) + (set (match_operand:QI 0 "register_operand" "=r") + (match_dup 1))] + "" + "andcc %1,0xff,%0" + [(set_attr "type" "unary")]) ;;- sign extension instructions |