Define mask as extern instead of uninitialized local variables.

The testcases are supposed to scan for vpopcnt{b,w,d,q} operations
with k mask, but mask is defined as uninitialized local variable which
will be set as 0 at rtl expand phase.
And it's further simplified off by late_combine which caused scan assembly failure.
Move the definition of mask outside to make the testcases more stable.

gcc/testsuite/ChangeLog:

	PR target/115610
	* gcc.target/i386/avx512bitalg-vpopcntb.c: Define mask as
	extern instead of uninitialized local variables.
	* gcc.target/i386/avx512bitalg-vpopcntbvl.c: Ditto.
	* gcc.target/i386/avx512bitalg-vpopcntw.c: Ditto.
	* gcc.target/i386/avx512bitalg-vpopcntwvl.c: Ditto.
	* gcc.target/i386/avx512vpopcntdq-vpopcntd.c: Ditto.
	* gcc.target/i386/avx512vpopcntdq-vpopcntq.c: Ditto.

6 files changed, 10 insertions, 10 deletions

diff --git a/gcc/testsuite/gcc.target/i386/avx512bitalg-vpopcntb.c b/gcc/testsuite/gcc.target/i386/avx512bitalg-vpopcntb.c
index 44b82c0..66d2410 100644
--- a/gcc/testsuite/gcc.target/i386/avx512bitalg-vpopcntb.c
+++ b/gcc/testsuite/gcc.target/i386/avx512bitalg-vpopcntb.c
@@ -7,10 +7,9 @@
 #include <x86intrin.h>
 
 extern __m512i z, z1;
-
+extern __mmask16 msk;
 int foo ()
 {
-  __mmask16 msk;
   __m512i c = _mm512_popcnt_epi8 (z);
   asm volatile ("" : "+v" (c));
   c = _mm512_mask_popcnt_epi8 (z1, msk, z);
diff --git a/gcc/testsuite/gcc.target/i386/avx512bitalg-vpopcntbvl.c b/gcc/testsuite/gcc.target/i386/avx512bitalg-vpopcntbvl.c
index 8c2dfab..8ab0565 100644
--- a/gcc/testsuite/gcc.target/i386/avx512bitalg-vpopcntbvl.c
+++ b/gcc/testsuite/gcc.target/i386/avx512bitalg-vpopcntbvl.c
@@ -11,11 +11,11 @@
 
 extern __m256i y, y_1;
 extern __m128i x, x_1;
+extern __mmask32 msk32;
+extern __mmask16 msk16;
 
 int foo ()
 {
-  __mmask32 msk32;
-  __mmask16 msk16;
   __m256i c256 = _mm256_popcnt_epi8 (y);
   asm volatile ("" : "+v" (c256));
   c256 = _mm256_mask_popcnt_epi8 (y_1, msk32, y);
diff --git a/gcc/testsuite/gcc.target/i386/avx512bitalg-vpopcntw.c b/gcc/testsuite/gcc.target/i386/avx512bitalg-vpopcntw.c
index 2ef8589..c741bf4 100644
--- a/gcc/testsuite/gcc.target/i386/avx512bitalg-vpopcntw.c
+++ b/gcc/testsuite/gcc.target/i386/avx512bitalg-vpopcntw.c
@@ -7,10 +7,10 @@
 #include <x86intrin.h>
 
 extern __m512i z, z1;
+extern __mmask16 msk;
 
 int foo ()
 {
-  __mmask16 msk;
   __m512i c = _mm512_popcnt_epi16 (z);
   asm volatile ("" : "+v" (c));
   c = _mm512_mask_popcnt_epi16 (z1, msk, z);
diff --git a/gcc/testsuite/gcc.target/i386/avx512bitalg-vpopcntwvl.c b/gcc/testsuite/gcc.target/i386/avx512bitalg-vpopcntwvl.c
index c976461..79bb3c3 100644
--- a/gcc/testsuite/gcc.target/i386/avx512bitalg-vpopcntwvl.c
+++ b/gcc/testsuite/gcc.target/i386/avx512bitalg-vpopcntwvl.c
@@ -11,11 +11,11 @@
 
 extern __m256i y, y_1;
 extern __m128i x, x_1;
+extern __mmask16 msk16;
+extern __mmask8 msk8;
 
 int foo ()
 {
-  __mmask16 msk16;
-  __mmask8 msk8;
   __m256i c256 = _mm256_popcnt_epi16 (y);
   asm volatile ("" : "+v" (c256));
   c256 = _mm256_mask_popcnt_epi16 (y_1, msk16, y);
diff --git a/gcc/testsuite/gcc.target/i386/avx512vpopcntdq-vpopcntd.c b/gcc/testsuite/gcc.target/i386/avx512vpopcntdq-vpopcntd.c
index b4d82f9..776a475 100644
--- a/gcc/testsuite/gcc.target/i386/avx512vpopcntdq-vpopcntd.c
+++ b/gcc/testsuite/gcc.target/i386/avx512vpopcntdq-vpopcntd.c
@@ -15,11 +15,12 @@
 extern __m128i x, x_1;
 extern __m256i y, y_1;
 extern __m512i z, z_1;
+extern  __mmask16 msk;
+extern  __mmask8 msk8;
+
 
 int foo ()
 {
-  __mmask16 msk;
-  __mmask8 msk8;
   __m128i a = _mm_popcnt_epi32 (x);
   asm volatile ("" : "+v" (a));
   a = _mm_mask_popcnt_epi32 (x_1, msk8, x);
diff --git a/gcc/testsuite/gcc.target/i386/avx512vpopcntdq-vpopcntq.c b/gcc/testsuite/gcc.target/i386/avx512vpopcntdq-vpopcntq.c
index e87d6c9..c6314ac 100644
--- a/gcc/testsuite/gcc.target/i386/avx512vpopcntdq-vpopcntq.c
+++ b/gcc/testsuite/gcc.target/i386/avx512vpopcntdq-vpopcntq.c
@@ -15,10 +15,10 @@
 extern __m128i x, x_1;
 extern __m256i y, y_1;
 extern __m512i z, z_1;
+extern __mmask8 msk; 
 
 int foo ()
 {
-  __mmask8 msk; 
   __m128i a = _mm_popcnt_epi64 (x);
   asm volatile ("" : "+v" (a));
   a = _mm_mask_popcnt_epi64 (x_1, msk, x);