[Bug target/83114] [7/8 Regression] ICE in gen_vec_cmpv2dfv2di, at config/aarch64/aarch64-simd.md:2495
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83114
James Greenhalgh changed:
What|Removed |Added
CC||amker.cheng at gmail dot com,
||jgreenhalgh at gcc dot gnu.org,
||sudi.das at arm dot com
Known to work|6.4.1 |4.8.1
Known to fail||4.9.1, 5.1.1
--- Comment #3 from James Greenhalgh ---
Looks like we're missing handling for LTGT in our vcmp/vcond handlers.
/* This is an ordered NE, ie !UNEQ, ie false for NaN. */
DEF_RTL_EXPR(LTGT, "ltgt", "ee", RTX_COMM_COMPARE)
I bet this would fail even further back with a modified testcase (this one is
somewhat undefined behaviour).
void *a;
void b(double *in) {
char c;
long d = -1024;
char *e = a;
for (; d; d++) {
double f = in[d], g = in[d+1];
c = g < f || g > f;
e[d] = c;
}
}
Is broken back to at least GCC 4.9.
Well... I implemented the original version of this code in GCC 4.9 and today is
the first time I heard of LTGT, so not surprising I missed it!
[Bug target/83114] [7/8 Regression] ICE in gen_vec_cmpv2dfv2di, at config/aarch64/aarch64-simd.md:2495
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83114 --- Comment #2 from ktkachov at gcc dot gnu.org --- Doesn't need the -g either. Just -O3 is enough
[Bug target/83114] [7/8 Regression] ICE in gen_vec_cmpv2dfv2di, at config/aarch64/aarch64-simd.md:2495
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83114 Richard Biener changed: What|Removed |Added Target Milestone|--- |7.3
[Bug target/83114] [7/8 Regression] ICE in gen_vec_cmpv2dfv2di, at config/aarch64/aarch64-simd.md:2495
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83114 ktkachov at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed||2017-11-22 CC||ktkachov at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #1 from ktkachov at gcc dot gnu.org --- Confirmed.
