This patch is to change dg-options for two testcases.

Use -mtune=generic to limit these two testcases. Because configuring them with
-mtune=cascadelake or znver3 will vectorize them.

regtested on x86_64-linux-gnu{-m32,}. Ok for trunk?

Thanks,
Lili.

Use -mtune=generic to limit these two test cases. Because configuring them with
-mtune=cascadelake or znver3 will vectorize them.

gcc/testsuite/ChangeLog:

        * gcc.dg/vect/costmodel/x86_64/costmodel-pr104582-2.c: Add
        -mtune=generic to dg-options.
        * gcc.target/i386/pr84101.c: Likewise.
---
 .../gcc.dg/vect/costmodel/x86_64/costmodel-pr104582-2.c         | 2 +-
 gcc/testsuite/gcc.target/i386/pr84101.c                         | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/gcc/testsuite/gcc.dg/vect/costmodel/x86_64/costmodel-pr104582-2.c 
b/gcc/testsuite/gcc.dg/vect/costmodel/x86_64/costmodel-pr104582-2.c
index 7637cdb4a97..d060135d877 100644
--- a/gcc/testsuite/gcc.dg/vect/costmodel/x86_64/costmodel-pr104582-2.c
+++ b/gcc/testsuite/gcc.dg/vect/costmodel/x86_64/costmodel-pr104582-2.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-additional-options "-msse -fdump-tree-slp2-details" } */
+/* { dg-additional-options "-msse -mtune=generic -fdump-tree-slp2-details" } */
 
 struct S { unsigned long a, b; } s;
 
diff --git a/gcc/testsuite/gcc.target/i386/pr84101.c 
b/gcc/testsuite/gcc.target/i386/pr84101.c
index cf144894f9b..2c5a97308ca 100644
--- a/gcc/testsuite/gcc.target/i386/pr84101.c
+++ b/gcc/testsuite/gcc.target/i386/pr84101.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O3 -fdump-tree-slp2-details" } */
+/* { dg-options "-O3 -mtune=generic -fdump-tree-slp2-details" } */
 
 typedef struct uint64_pair uint64_pair_t ;
 struct uint64_pair
-- 
2.17.1

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