| Message ID | CAFULd4bY-ChBDrQ0SG+KkCGpZZ_74+PFr8sTVGNWzzWKvmbMkg@mail.gmail.com |
|---|---|
| State | New |
| Headers | show |
| Series | i386: Handle V4HI and V2SImode in ix86_widen_mult_cost [PR109807] | expand |
diff --git a/gcc/config/i386/i386.cc b/gcc/config/i386/i386.cc index b1d08ecdb3d..62fe06fdbaa 100644 --- a/gcc/config/i386/i386.cc +++ b/gcc/config/i386/i386.cc @@ -20417,12 +20417,14 @@ ix86_widen_mult_cost (const struct processor_costs *cost, int basic_cost = 0; switch (mode) { + case V4HImode: case V8HImode: case V16HImode: if (!uns_p || mode == V16HImode) extra_cost = cost->sse_op * 2; basic_cost = cost->mulss * 2 + cost->sse_op * 4; break; + case V2SImode: case V4SImode: case V8SImode: /* pmulhw/pmullw can be used. */ diff --git a/gcc/testsuite/gcc.target/i386/pr109807.c b/gcc/testsuite/gcc.target/i386/pr109807.c new file mode 100644 index 00000000000..6380eb35312 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr109807.c @@ -0,0 +1,4 @@ +/* { dg-do compile { target { ! ia32 } } } */ +/* { dg-options "-O2 -msse4" } */ + +#include "sse2-mmx-pmaddwd.c"
Do not crash when asking ix86_widen_mult_cost for the cost of a widening mul operation to V4HI or V2SImode. gcc/ChangeLog: PR target/109807 * config/i386/i386.cc (ix86_widen_mult_cost): Handle V4HImode and V2SImode. gcc/testsuite/ChangeLog: PR target/109807 * gcc.target/i386/pr109807.c: New test. Bootstrapped and regression tested on x86_64-linux-gnu {,-m32}. Pushed to master. Uros.