From 02cd9f64bb62c26248d013261ea0e037e60ed2a4 Mon Sep 17 00:00:00 2001 From: Dominik Vogt Date: Mon, 12 Dec 2016 10:35:21 +0100 Subject: [PATCH] PR target/78748: S/390: Fix ICE with ANDC splitter. --- gcc/config/s390/s390.md | 6 +++++- gcc/testsuite/gcc.c-torture/compile/pr78748.c | 14 ++++++++++++++ 2 files changed, 19 insertions(+), 1 deletion(-) create mode 100644 gcc/testsuite/gcc.c-torture/compile/pr78748.c diff --git a/gcc/config/s390/s390.md b/gcc/config/s390/s390.md index 4f2effd..9d8e6b6 100644 --- a/gcc/config/s390/s390.md +++ b/gcc/config/s390/s390.md @@ -7420,7 +7420,11 @@ (and:GPR (not:GPR (match_operand:GPR 1 "nonimmediate_operand" "")) (match_operand:GPR 2 "general_operand" ""))) (clobber (reg:CC CC_REGNUM))] - "! reload_completed && s390_logical_operator_ok_p (operands)" + "! reload_completed + && (GET_CODE (operands[0]) != MEM + /* Ensure that s390_logical_operator_ok_p will succeed even + on the split xor if (b & a) is stored into a pseudo. */ + || rtx_equal_p (operands[0], operands[2]))" "#" "&& 1" [ diff --git a/gcc/testsuite/gcc.c-torture/compile/pr78748.c b/gcc/testsuite/gcc.c-torture/compile/pr78748.c new file mode 100644 index 0000000..032e78d --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/compile/pr78748.c @@ -0,0 +1,14 @@ +/* PR target/78748 */ +/* { dg-options "-march=zEC12" { target { s390*-*-* } } } */ + +void +foo (int *p, int *q) +{ + *q = *p & ~*q; +} + +void +bar (int *p, int *q) +{ + *q = ~*p & *q; +} -- 2.3.0