[gcc r10-10831] testsuite: Fix up pr104637 testcase [PR104637]

[gcc r10-10831] testsuite: Fix up pr104637 testcase [PR104637]

[Vladimir Makarov]

https://gcc.gnu.org/g:4c6e66a4dba5bbbcf343c1f6a58f355e270e79b9

commit r10-10831-g4c6e66a4dba5bbbcf343c1f6a58f355e270e79b9
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Wed Mar 2 11:04:35 2022 +0100

    testsuite: Fix up pr104637 testcase [PR104637]
    
    This testcase FAILs everywhere for 3 reasons:
    1) the testcase can't work on ia32, where sizeof (long double) == 12
       and as it is not a power of 2, we disallow creating vectors with such
       elements, -mx32 and -m64 are fine
    2) the testcase emits a lot of -Wdiv-by-zero warnings, I've just added
       -Wno-div-by-zero to dg-options
    3) my fault, when tweaking the testcase I've missed 33 initializers of
       a 32 element vector which didn't change anything on the ICE, but is
       still reported
    
    This patch fixes all of it, tested with
    RUNTESTFLAGS='--target_board=unix\{-m32,-m64\} i386.exp=pr104637.c'
    both without the LRA fix where it ICEs and with it where it passes
    everywhere.
    
    2022-03-02  Jakub Jelinek  <jakub@redhat.com>
    
            PR rtl-optimization/104637
            * gcc.target/i386/pr104637.c: Don't run on ia32.  Add -Wno-div-by-zero
            to dg-options.
            (foo): Remove extraneous initializer.

Diff:
---
 gcc/testsuite/gcc.target/i386/pr104637.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/gcc/testsuite/gcc.target/i386/pr104637.c b/gcc/testsuite/gcc.target/i386/pr104637.c
index 65e8635d55e..36e8b6ed97d 100644
--- a/gcc/testsuite/gcc.target/i386/pr104637.c
+++ b/gcc/testsuite/gcc.target/i386/pr104637.c
@@ -1,5 +1,5 @@
-/* { dg-do compile } */
-/* { dg-options "-Og -fno-forward-propagate -mavx" } */
+/* { dg-do compile { target { ! ia32 } } } */
+/* { dg-options "-Og -fno-forward-propagate -mavx -Wno-div-by-zero" } */
 
 typedef short __attribute__((__vector_size__ (64))) U;
 typedef unsigned long long __attribute__((__vector_size__ (32))) V;
@@ -13,7 +13,7 @@ void
 foo (char a, char b, _Complex char c, V v)
 {
   u = (U) { u[0] / 0, u[1] / 0, u[2] / 0, u[3] / 0, u[4] / 0, u[5] / 0, u[6] / 0, u[7] / 0,
-	    u[8] / 0, u[0] / 0, u[9] / 0, u[10] / 0, u[11] / 0, u[12] / 0, u[13] / 0, u[14] / 0, u[15] / 0,
+	    u[8] / 0, u[9] / 0, u[10] / 0, u[11] / 0, u[12] / 0, u[13] / 0, u[14] / 0, u[15] / 0,
 	    u[16] / 0, u[17] / 0, u[18] / 0, u[19] / 0, u[20] / 0, u[21] / 0, u[22] / 0, u[23] / 0,
 	    u[24] / 0, u[25] / 0, u[26] / 0, u[27] / 0, u[28] / 0, u[29] / 0, u[30] / 0, u[31] / 0 };
   c += i;