diff options
| -rw-r--r-- | gcc/config/xtensa/xtensa.md | 21 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/xtensa/BALL-BNALL.c | 33 |
2 files changed, 54 insertions, 0 deletions
diff --git a/gcc/config/xtensa/xtensa.md b/gcc/config/xtensa/xtensa.md index 449e4b2..a4477e2 100644 --- a/gcc/config/xtensa/xtensa.md +++ b/gcc/config/xtensa/xtensa.md @@ -1628,6 +1628,27 @@ (set_attr "mode" "none") (set_attr "length" "3")]) +(define_insn "*masktrue_bitcmpl" + [(set (pc) + (if_then_else (match_operator 3 "boolean_operator" + [(and:SI (not:SI (match_operand:SI 0 "register_operand" "r")) + (match_operand:SI 1 "register_operand" "r")) + (const_int 0)]) + (label_ref (match_operand 2 "" "")) + (pc)))] + "" +{ + switch (GET_CODE (operands[3])) + { + case EQ: return "ball\t%0, %1, %2"; + case NE: return "bnall\t%0, %1, %2"; + default: gcc_unreachable (); + } +} + [(set_attr "type" "jump") + (set_attr "mode" "none") + (set_attr "length" "3")]) + ;; Zero-overhead looping support. diff --git a/gcc/testsuite/gcc.target/xtensa/BALL-BNALL.c b/gcc/testsuite/gcc.target/xtensa/BALL-BNALL.c new file mode 100644 index 0000000..ba61c6f --- /dev/null +++ b/gcc/testsuite/gcc.target/xtensa/BALL-BNALL.c @@ -0,0 +1,33 @@ +/* { dg-do compile } */ +/* { dg-options "-O" } */ + +extern void foo(void); + +void BNONE_test(int a, int b) +{ + if (a & b) + foo(); +} + +void BANY_test(int a, int b) +{ + if (!(a & b)) + foo(); +} + +void BALL_test(int a, int b) +{ + if (~a & b) + foo(); +} + +void BNALL_test(int a, int b) +{ + if (!(~a & b)) + foo(); +} + +/* { dg-final { scan-assembler-times "bnone" 1 } } */ +/* { dg-final { scan-assembler-times "bany" 1 } } */ +/* { dg-final { scan-assembler-times "ball" 1 } } */ +/* { dg-final { scan-assembler-times "bnall" 1 } } */ |