diff options
| -rw-r--r-- | gcc/ChangeLog | 8 | ||||
| -rw-r--r-- | gcc/config/aarch64/aarch64.c | 13 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 3 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/compile/pr93335.c | 98 |
4 files changed, 116 insertions, 6 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index f672e93..e2111a0 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,11 @@ +2020-01-22 Jakub Jelinek <jakub@redhat.com> + + PR target/93335 + * config/aarch64/aarch64.c (aarch64_expand_subvti): Only use + gen_subdi3_compare1_imm if low_in2 satisfies aarch64_plus_immediate + predicate, not whenever it is CONST_INT. Otherwise, force_reg it. + Call force_reg on high_in2 unconditionally. + 2020-01-22 Martin Liska <mliska@suse.cz> PR tree-optimization/92924 diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c index 9acf33d..3437fff 100644 --- a/gcc/config/aarch64/aarch64.c +++ b/gcc/config/aarch64/aarch64.c @@ -20202,14 +20202,15 @@ aarch64_expand_subvti (rtx op0, rtx low_dest, rtx low_in1, } else { - if (CONST_INT_P (low_in2)) + if (aarch64_plus_immediate (low_in2, DImode)) + emit_insn (gen_subdi3_compare1_imm (low_dest, low_in1, low_in2, + GEN_INT (-INTVAL (low_in2)))); + else { - high_in2 = force_reg (DImode, high_in2); - emit_insn (gen_subdi3_compare1_imm (low_dest, low_in1, low_in2, - GEN_INT (-INTVAL (low_in2)))); + low_in2 = force_reg (DImode, low_in2); + emit_insn (gen_subdi3_compare1 (low_dest, low_in1, low_in2)); } - else - emit_insn (gen_subdi3_compare1 (low_dest, low_in1, low_in2)); + high_in2 = force_reg (DImode, high_in2); if (unsigned_p) emit_insn (gen_usubdi3_carryinC (high_dest, high_in1, high_in2)); diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index a435fd1..a2d70f5 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,5 +1,8 @@ 2020-01-22 Jakub Jelinek <jakub@redhat.com> + PR target/93335 + * gcc.c-torture/compile/pr93335.c: New test. + PR target/91298 * gcc.target/i386/pr91298-1.c: New test. * gcc.target/i386/pr91298-2.c: New test. diff --git a/gcc/testsuite/gcc.c-torture/compile/pr93335.c b/gcc/testsuite/gcc.c-torture/compile/pr93335.c new file mode 100644 index 0000000..c6e984c --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/compile/pr93335.c @@ -0,0 +1,98 @@ +/* PR target/93335 */ +/* { dg-do compile { target int128 } } */ + +int +f1 (unsigned int x) +{ + return __builtin_sub_overflow_p (x, 4096, (unsigned __int128) 0); +} + +int +f2 (unsigned int x) +{ + return __builtin_sub_overflow_p (x, 4097, (unsigned __int128) 0); +} + +int +f3 (int x) +{ + return __builtin_sub_overflow_p (x, 4096, (__int128) 0); +} + +int +f4 (int x) +{ + return __builtin_sub_overflow_p (x, 4097, (__int128) 0); +} + +int +f5 (unsigned int x) +{ + return __builtin_sub_overflow_p (x, -4096, (unsigned __int128) 0); +} + +int +f6 (unsigned int x) +{ + return __builtin_sub_overflow_p (x, -4097, (unsigned __int128) 0); +} + +int +f7 (int x) +{ + return __builtin_sub_overflow_p (x, -4096, (__int128) 0); +} + +int +f8 (int x) +{ + return __builtin_sub_overflow_p (x, -4097, (__int128) 0); +} + +int +f9 (unsigned int x) +{ + return __builtin_add_overflow_p (x, 4096, (unsigned __int128) 0); +} + +int +f10 (unsigned int x) +{ + return __builtin_add_overflow_p (x, 4097, (unsigned __int128) 0); +} + +int +f11 (int x) +{ + return __builtin_add_overflow_p (x, 4096, (__int128) 0); +} + +int +f12 (int x) +{ + return __builtin_add_overflow_p (x, 4097, (__int128) 0); +} + +int +f13 (unsigned int x) +{ + return __builtin_add_overflow_p (x, -4096, (unsigned __int128) 0); +} + +int +f14 (unsigned int x) +{ + return __builtin_add_overflow_p (x, -4097, (unsigned __int128) 0); +} + +int +f15 (int x) +{ + return __builtin_add_overflow_p (x, -4096, (__int128) 0); +} + +int +f16 (int x) +{ + return __builtin_add_overflow_p (x, -4097, (__int128) 0); +} |