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From: Stefan Schulze Frielinghaus <stefansf@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org Subject: [gcc r11-9262] IBM Z: Fix load-and-test peephole2 condition Date: Mon, 22 Nov 2021 09:18:55 +0000 (GMT) [thread overview] Message-ID: <20211122091855.D70E83858415@sourceware.org> (raw) https://gcc.gnu.org/g:f3c958196478351033ba2ab93d8341af6531f90b commit r11-9262-gf3c958196478351033ba2ab93d8341af6531f90b Author: Stefan Schulze Frielinghaus <stefansf@linux.ibm.com> Date: Fri Nov 19 16:56:56 2021 +0100 IBM Z: Fix load-and-test peephole2 condition For a peephole2 condition variable insn points to the first matched insn. In order to refer to the second matched insn use peep2_next_insn(1) instead. gcc/ChangeLog: * config/s390/s390.md (define_peephole2): Variable insn points to the first matched insn. Use peep2_next_insn(1) to refer to the second matched insn. gcc/testsuite/ChangeLog: * gcc.target/s390/20211119.c: New test. (cherry picked from commit f47870e6a272dfe740a38422030c6c68e0fc7ff8) Diff: --- gcc/config/s390/s390.md | 2 +- gcc/testsuite/gcc.target/s390/20211119.c | 12 ++++++++++++ 2 files changed, 13 insertions(+), 1 deletion(-) diff --git a/gcc/config/s390/s390.md b/gcc/config/s390/s390.md index 21f902b143c..97a306768a5 100644 --- a/gcc/config/s390/s390.md +++ b/gcc/config/s390/s390.md @@ -1006,7 +1006,7 @@ (match_operand:GPR 2 "memory_operand")) (set (reg CC_REGNUM) (compare (match_dup 0) (match_operand:GPR 1 "const0_operand")))] - "s390_match_ccmode(insn, CCSmode) && TARGET_EXTIMM + "s390_match_ccmode (peep2_next_insn (1), CCSmode) && TARGET_EXTIMM && GENERAL_REG_P (operands[0]) && satisfies_constraint_T (operands[2]) && !contains_constant_pool_address_p (operands[2])" diff --git a/gcc/testsuite/gcc.target/s390/20211119.c b/gcc/testsuite/gcc.target/s390/20211119.c new file mode 100644 index 00000000000..b9d216389f4 --- /dev/null +++ b/gcc/testsuite/gcc.target/s390/20211119.c @@ -0,0 +1,12 @@ +/* { dg-do run { target { s390_useable_hw } } } */ +/* { dg-options "-Os -march=z10" } */ +signed char a; +int b = -925974181, c; +unsigned *d = &b; +int *e = &c; +int main() { + *e = ((217 ^ a) > 585) < *d; + if (c != 1) + __builtin_abort(); + return 0; +}
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