diff options
| author | Dominik Vogt <vogt@linux.vnet.ibm.com> | 2016-12-19 09:53:56 +0000 |
|---|---|---|
| committer | Andreas Krebbel <krebbel@gcc.gnu.org> | 2016-12-19 09:53:56 +0000 |
| commit | ad7ab32ed443d716f45ed315aa5349981954aa6c (patch) | |
| tree | a4b329f398660e47d560b530217bffa6e84d055f /gcc | |
| parent | e01f223f28d94ececee29b8048434361de5cd40c (diff) | |
| download | gcc-ad7ab32ed443d716f45ed315aa5349981954aa6c.zip gcc-ad7ab32ed443d716f45ed315aa5349981954aa6c.tar.gz gcc-ad7ab32ed443d716f45ed315aa5349981954aa6c.tar.bz2 | |
PR target/78748: S/390: Fix ICE with ANDC splitter.
gcc/ChangeLog:
2016-12-19 Dominik Vogt <vogt@linux.vnet.ibm.com>
PR target/78748
* config/s390/s390.md ("*andc_split_<mode>"): Allow memory destination
only if it coincides with operand 2.
gcc/testsuite/ChangeLog:
2016-12-19 Dominik Vogt <vogt@linux.vnet.ibm.com>
PR target/78748
* gcc.c-torture/compile/pr78748.c: New test.
From-SVN: r243793
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/s390/s390.md | 6 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/compile/pr78748.c | 14 |
4 files changed, 30 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 3622483..8255e50 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,11 @@ 2016-12-19 Dominik Vogt <vogt@linux.vnet.ibm.com> + PR target/78748 + * config/s390/s390.md ("*andc_split_<mode>"): Allow memory destination + only if it coincides with operand 2. + +2016-12-19 Dominik Vogt <vogt@linux.vnet.ibm.com> + * combine.c (change_zero_ext): Skip generation of redundant AND. 2016-12-19 Krister Walfridsson <krister.walfridsson@gmail.com> 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/ChangeLog b/gcc/testsuite/ChangeLog index 7b91b7b..53813b5 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2016-12-19 Dominik Vogt <vogt@linux.vnet.ibm.com> + + PR target/78748 + * gcc.c-torture/compile/pr78748.c: New test. + 2016-12-18 Janus Weil <janus@gcc.gnu.org> PR fortran/78848 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; +} |