>> If you're going to do it in one file you'll need to use
>> scan-assembler-times.
Hi,
Thanks for the suggestion.
Please find attached the modified patch as per your suggestions.
Please review the same and let me know if there should be any
further modifications in it.
Thanks,
Naveen
--- gcc/config/aarch64/aarch64.md 2013-04-15 09:41:29.711014628 +0530
+++ gcc/config/aarch64/aarch64.md 2013-04-15 09:44:00.327014894 +0530
@@ -1291,6 +1291,78 @@
(set_attr "mode" "SI")]
)
+(define_insn "*adds_<optab><ALLX:mode>_<GPI:mode>"
+ [(set (reg:CC_NZ CC_REGNUM)
+ (compare:CC_NZ
+ (plus:GPI
+ (ANY_EXTEND:GPI (match_operand:ALLX 1 "register_operand" "r"))
+ (match_operand:GPI 2 "register_operand" "r"))
+ (const_int 0)))
+ (set (match_operand:GPI 0 "register_operand" "=r")
+ (plus:GPI (ANY_EXTEND:GPI (match_dup 1)) (match_dup 2)))]
+ ""
+ "adds\\t%<GPI:w>0, %<GPI:w>2, %<GPI:w>1, <su>xt<ALLX:size>"
+ [(set_attr "v8type" "alus_ext")
+ (set_attr "mode" "<GPI:MODE>")]
+)
+
+(define_insn "*subs_<optab><ALLX:mode>_<GPI:mode>"
+ [(set (reg:CC_NZ CC_REGNUM)
+ (compare:CC_NZ
+ (minus:GPI (match_operand:GPI 1 "register_operand" "r")
+ (ANY_EXTEND:GPI
+ (match_operand:ALLX 2 "register_operand" "r")))
+ (const_int 0)))
+ (set (match_operand:GPI 0 "register_operand" "=r")
+ (minus:GPI (match_dup 1) (ANY_EXTEND:GPI (match_dup 2))))]
+ ""
+ "subs\\t%<GPI:w>0, %<GPI:w>1, %<GPI:w>2, <su>xt<ALLX:size>"
+ [(set_attr "v8type" "alus_ext")
+ (set_attr "mode" "<GPI:MODE>")]
+)
+
+(define_insn "*adds_<optab><mode>_multp2"
+ [(set (reg:CC_NZ CC_REGNUM)
+ (compare:CC_NZ
+ (plus:GPI (ANY_EXTRACT:GPI
+ (mult:GPI (match_operand:GPI 1 "register_operand" "r")
+ (match_operand 2 "aarch64_pwr_imm3" "Up3"))
+ (match_operand 3 "const_int_operand" "n")
+ (const_int 0))
+ (match_operand:GPI 4 "register_operand" "r"))
+ (const_int 0)))
+ (set (match_operand:GPI 0 "register_operand" "=r")
+ (plus:GPI (ANY_EXTRACT:GPI (mult:GPI (match_dup 1) (match_dup 2))
+ (match_dup 3)
+ (const_int 0))
+ (match_dup 4)))]
+ "aarch64_is_extend_from_extract (<MODE>mode, operands[2], operands[3])"
+ "adds\\t%<w>0, %<w>4, %<w>1, <su>xt%e3 %p2"
+ [(set_attr "v8type" "alus_ext")
+ (set_attr "mode" "<MODE>")]
+)
+
+(define_insn "*subs_<optab><mode>_multp2"
+ [(set (reg:CC_NZ CC_REGNUM)
+ (compare:CC_NZ
+ (minus:GPI (match_operand:GPI 4 "register_operand" "r")
+ (ANY_EXTRACT:GPI
+ (mult:GPI (match_operand:GPI 1 "register_operand" "r")
+ (match_operand 2 "aarch64_pwr_imm3" "Up3"))
+ (match_operand 3 "const_int_operand" "n")
+ (const_int 0)))
+ (const_int 0)))
+ (set (match_operand:GPI 0 "register_operand" "=r")
+ (minus:GPI (match_dup 4) (ANY_EXTRACT:GPI
+ (mult:GPI (match_dup 1) (match_dup 2))
+ (match_dup 3)
+ (const_int 0))))]
+ "aarch64_is_extend_from_extract (<MODE>mode, operands[2], operands[3])"
+ "subs\\t%<w>0, %<w>4, %<w>1, <su>xt%e3 %p2"
+ [(set_attr "v8type" "alus_ext")
+ (set_attr "mode" "<MODE>")]
+)
+
(define_insn "*add<mode>3nr_compare0"
[(set (reg:CC_NZ CC_REGNUM)
(compare:CC_NZ
--- gcc/testsuite/gcc.target/aarch64/adds3.c 1970-01-01 05:30:00.000000000 +0530
+++ gcc/testsuite/gcc.target/aarch64/adds3.c 2013-04-15 09:48:57.555015416 +0530
@@ -0,0 +1,61 @@
+/* { dg-do run } */
+/* { dg-options "-O2 --save-temps" } */
+
+extern void abort (void);
+typedef long long s64;
+
+int
+adds_ext (s64 a, int b, int c)
+{
+ s64 d = a + b;
+
+ if (d == 0)
+ return a + c;
+ else
+ return b + d + c;
+}
+
+int
+adds_shift_ext (s64 a, int b, int c)
+{
+ s64 d = (a + ((s64)b << 3));
+
+ if (d == 0)
+ return a + c;
+ else
+ return b + d + c;
+}
+
+int main ()
+{
+ int x;
+ s64 y;
+
+ x = adds_ext (0x13000002ll, 41, 15);
+ if (x != 318767203)
+ abort ();
+
+ x = adds_ext (0x50505050ll, 29, 4);
+ if (x != 1347440782)
+ abort ();
+
+ x = adds_ext (0x12121212121ll, 2, 14);
+ if (x != 555819315)
+ abort ();
+
+ x = adds_shift_ext (0x123456789ll, 4, 12);
+ if (x != 591751097)
+ abort ();
+
+ x = adds_shift_ext (0x02020202ll, 9, 8);
+ if (x != 33686107)
+ abort ();
+
+ x = adds_shift_ext (0x987987987987ll, 23, 41);
+ if (x != -2020050305)
+ abort ();
+
+ return 0;
+}
+
+/* { dg-final { scan-assembler-times "adds\tx\[0-9\]+, x\[0-9\]+, x\[0-9\]+, sxtw" 2 } } */
--- gcc/testsuite/gcc.target/aarch64/subs3.c 1970-01-01 05:30:00.000000000 +0530
+++ gcc/testsuite/gcc.target/aarch64/subs3.c 2013-04-15 09:46:13.931015127 +0530
@@ -0,0 +1,61 @@
+/* { dg-do run } */
+/* { dg-options "-O2 --save-temps" } */
+
+extern void abort (void);
+typedef long long s64;
+
+int
+subs_ext (s64 a, int b, int c)
+{
+ s64 d = a - b;
+
+ if (d == 0)
+ return a + c;
+ else
+ return b + d + c;
+}
+
+int
+subs_shift_ext (s64 a, int b, int c)
+{
+ s64 d = (a - ((s64)b << 3));
+
+ if (d == 0)
+ return a + c;
+ else
+ return b + d + c;
+}
+
+int main ()
+{
+ int x;
+ s64 y;
+
+ x = subs_ext (0x13000002ll, 41, 15);
+ if (x != 318767121)
+ abort ();
+
+ x = subs_ext (0x50505050ll, 29, 4);
+ if (x != 1347440724)
+ abort ();
+
+ x = subs_ext (0x12121212121ll, 2, 14);
+ if (x != 555819311)
+ abort ();
+
+ x = subs_shift_ext (0x123456789ll, 4, 12);
+ if (x != 591751033)
+ abort ();
+
+ x = subs_shift_ext (0x02020202ll, 9, 8);
+ if (x != 33685963)
+ abort ();
+
+ x = subs_shift_ext (0x987987987987ll, 23, 41);
+ if (x != -2020050673)
+ abort ();
+
+ return 0;
+}
+
+/* { dg-final { scan-assembler-times "subs\tx\[0-9\]+, x\[0-9\]+, x\[0-9\]+, sxtw" 2 } } */
