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| author | Jakub Jelinek <jakub@redhat.com> | 2018-01-04 12:44:07 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2018-01-04 12:44:07 +0100 |
| commit | c54af0682ce0881ecde74a3b7502287a53ced378 (patch) | |
| tree | 79abdf94803f0325c6055284f275f42dcd9f7c02 | |
| parent | 32489ab56a9ec26aa2342c50bc6d40c95d353777 (diff) | |
| download | gcc-c54af0682ce0881ecde74a3b7502287a53ced378.zip gcc-c54af0682ce0881ecde74a3b7502287a53ced378.tar.gz gcc-c54af0682ce0881ecde74a3b7502287a53ced378.tar.bz2 | |
re PR debug/83666 (ICE: SIGFPE with -O2 -g --param=sccvn-max-scc-size=10)
PR debug/83666
* cfgexpand.c (expand_dbeug_expr) <case BIT_FIELD_REF>: Punt if mode
is BLKmode and bitpos not zero or mode change is needed.
* gcc.dg/pr83666.c: New test.
From-SVN: r256232
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/cfgexpand.c | 2 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr83666.c | 28 |
4 files changed, 40 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 15172f1..d932f05 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2018-01-04 Jakub Jelinek <jakub@redhat.com> + + PR debug/83666 + * cfgexpand.c (expand_dbeug_expr) <case BIT_FIELD_REF>: Punt if mode + is BLKmode and bitpos not zero or mode change is needed. + 2018-01-04 Richard Sandiford <richard.sandiford@linaro.org> PR target/83675 diff --git a/gcc/cfgexpand.c b/gcc/cfgexpand.c index f278eb2..72fd8fd 100644 --- a/gcc/cfgexpand.c +++ b/gcc/cfgexpand.c @@ -4560,7 +4560,7 @@ expand_debug_expr (tree exp) if (maybe_lt (bitpos, 0)) return NULL; - if (GET_MODE (op0) == BLKmode) + if (GET_MODE (op0) == BLKmode || mode == BLKmode) return NULL; poly_int64 bytepos; diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 3a93d17..5a6d402 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2018-01-04 Jakub Jelinek <jakub@redhat.com> + + PR debug/83666 + * gcc.dg/pr83666.c: New test. + 2018-01-04 Uros Bizjak <ubizjak@gmail.com> PR target/83628 diff --git a/gcc/testsuite/gcc.dg/pr83666.c b/gcc/testsuite/gcc.dg/pr83666.c new file mode 100644 index 0000000..f12f13d --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr83666.c @@ -0,0 +1,28 @@ +/* PR debug/83666 */ +/* { dg-do compile } */ +/* { dg-options "-O2 -g --param=sccvn-max-scc-size=10 -Wno-psabi" } */ + +typedef int __attribute__ ((vector_size (64))) V; + +int c, d; +short e; +V g; + +V +bar (void) +{ + g[1] = d; + do + { + e += c; + g = g > 0; + } + while (g[1]); + return g; +} + +void +foo (void) +{ + int x = bar ()[3]; +} |