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re PR target/80019 (ICE in ix86_vector_duplicate_value, at config/i386/i386.c:42584)

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PR target/80019
	* config/i386/i386.c (ix86_vector_duplicate_value): Create
	subreg of inner mode for values already in registers.

testsuite/ChangeLog:

	PR target/80019
	* gcc.target/i386/pr80019.c: New test.

From-SVN: r246161
This commit is contained in:
Uros Bizjak 2017-03-15 14:38:51 +01:00 committed by Uros Bizjak
parent 6c194efb23
commit 05f659104f
4 changed files with 31 additions and 1 deletions
gcc
ChangeLog
config/i386
i386.c
testsuite
ChangeLog
gcc.target/i386
pr80019.c

6
gcc/ChangeLog

@ -1,3 +1,9 @@
2017-03-15 Uros Bizjak <ubizjak@gmail.com>
PR target/80019
* config/i386/i386.c (ix86_vector_duplicate_value): Create
subreg of inner mode for values already in registers.
2017-03-15 Bernd Schmidt <bschmidt@redhat.com>
* config/c6x/c6x.c (hwloop_optimize): Handle case where the old

8
gcc/config/i386/i386.c

@ -42571,10 +42571,16 @@ ix86_vector_duplicate_value (machine_mode mode, rtx target, rtx val)
if (recog_memoized (insn) < 0)
{
rtx_insn *seq;
machine_mode innermode = GET_MODE_INNER (mode);
rtx reg;
/* If that fails, force VAL into a register. */
start_sequence ();
XEXP (dup, 0) = force_reg (GET_MODE_INNER (mode), val);
reg = force_reg (innermode, val);
if (GET_MODE (reg) != innermode)
reg = gen_lowpart (innermode, reg);
XEXP (dup, 0) = reg;
seq = get_insns ();
end_sequence ();
if (seq)

5
gcc/testsuite/ChangeLog

@ -1,3 +1,8 @@
2017-03-15 Uros Bizjak <ubizjak@gmail.com>
PR target/80019
* gcc.target/i386/pr80019.c: New test.
2017-03-15 Martin Liska <mliska@suse.cz>
* gcc.dg/tree-prof/pr66295.c: Removed unused dg-error.

13
gcc/testsuite/gcc.target/i386/pr80019.c Normal file

@ -0,0 +1,13 @@
/* PR target/80019 */
/* { dg-do compile } */
/* { dg-options "-O2 -mxop -mavx2" } */
typedef char v16qi __attribute__ ((vector_size (16)));
extern v16qi b, c;
void
foo (int e)
{
b = c << e;
}