[testsuite] Require alloca support in a few tests

Require effective target alloca in a few test-cases.

Tested on nvptx.

gcc/testsuite/ChangeLog:

2022-02-10  Tom de Vries  <tdevries@suse.de>

	* c-c++-common/Walloca-larger-than.c: Require effective target alloca.
	* c-c++-common/Warray-bounds-9.c: Same.
	* c-c++-common/Wdangling-pointer-2.c: Same.
	* c-c++-common/Wdangling-pointer-4.c: Same.
	* c-c++-common/Wdangling-pointer-5.c: Same.
	* c-c++-common/Wdangling-pointer.c: Same.
	* c-c++-common/auto-init-11.c: Same.
	* c-c++-common/auto-init-12.c: Same.
	* c-c++-common/auto-init-15.c: Same.
	* c-c++-common/auto-init-16.c: Same.
	* c-c++-common/torture/builtin-clear-padding-4.c: Same.
	* gcc.c-torture/compile/pr99787-1.c: Same.
	* gcc.dg/Walloca-larger-than-4.c: Same.
	* gcc.dg/Wdangling-pointer.c: Same.
	* gcc.dg/Wfree-nonheap-object-2.c: Same.
	* gcc.dg/Wfree-nonheap-object.c: Same.
	* gcc.dg/Wstringop-overflow-56.c: Same.
	* gcc.dg/Wstringop-overflow-57.c: Same.
	* gcc.dg/Wstringop-overflow-67.c: Same.
	* gcc.dg/Wstringop-overflow-71.c: Same.
	* gcc.dg/Wvla-larger-than-5.c: Same.
	* gcc.dg/analyzer/taint-alloc-1.c: Same.
	* gcc.dg/analyzer/torture/ubsan-1.c: Same.
	* gcc.dg/graphite/pr99085.c: Same.
	* gcc.dg/pr100225.c: Same.
	* gcc.dg/pr98721-1.c: Same.
	* gcc.dg/pr99122-2.c: Same.
	* gcc.dg/sso-14.c: Same.
	* gcc.dg/tree-ssa/builtin-sprintf-warn-25.c: Same.
	* gcc.dg/uninit-38.c: Same.
	* gcc.dg/uninit-39.c: Same.
	* gcc.dg/uninit-41.c: Same.
	* gcc.dg/uninit-pr100250.c: Same.
	* gcc.dg/uninit-pr101300.c: Same.
	* gcc.dg/uninit-pr101494.c: Same.
	* gcc.dg/uninit-pr98578.c: Same.
	* gcc.dg/uninit-pr98583.c: Same.
	* gcc.dg/vla-stexp-1.c: Same.
	* gcc.dg/vla-stexp-2.c: Same.
	* gcc.dg/vla-stexp-4.c: Same.
	* gcc.dg/vla-stexp-5.c: Same.

41 files changed, 66 insertions, 24 deletions

diff --git a/gcc/testsuite/c-c++-common/Walloca-larger-than.c b/gcc/testsuite/c-c++-common/Walloca-larger-than.c
index e7851ea..6fdc1de 100644
--- a/gcc/testsuite/c-c++-common/Walloca-larger-than.c
+++ b/gcc/testsuite/c-c++-common/Walloca-larger-than.c
@@ -1,6 +1,7 @@
 /* PR middle-end/100425 - missing -Walloca-larger-than with -O0
    { dg-do compile }
-   { dg-options "-O0 -Wall -Walloca-larger-than=128" } */
+   { dg-options "-O0 -Wall -Walloca-larger-than=128" }
+   { dg-require-effective-target alloca } */
 
 typedef __SIZE_TYPE__ size_t;
 
diff --git a/gcc/testsuite/c-c++-common/Warray-bounds-9.c b/gcc/testsuite/c-c++-common/Warray-bounds-9.c
index be05775..3b5cdfe 100644
--- a/gcc/testsuite/c-c++-common/Warray-bounds-9.c
+++ b/gcc/testsuite/c-c++-common/Warray-bounds-9.c
@@ -1,7 +1,8 @@
 /* PR tree-optimization/99121 - ICE in -Warray-bounds on a multidimensional
    VLA
    { dg-do compile }
-   { dg-options "-O2 -Wall -ftrack-macro-expansion=0" } */
+   { dg-options "-O2 -Wall -ftrack-macro-expansion=0" }
+   { dg-require-effective-target alloca } */
 
 #define NOIPA __attribute__ ((noipa))
 
diff --git a/gcc/testsuite/c-c++-common/Wdangling-pointer-2.c b/gcc/testsuite/c-c++-common/Wdangling-pointer-2.c
index 527e5e7..20f11b2 100644
--- a/gcc/testsuite/c-c++-common/Wdangling-pointer-2.c
+++ b/gcc/testsuite/c-c++-common/Wdangling-pointer-2.c
@@ -2,7 +2,8 @@
    variable within the same function
    Exercise basic cases of -Wdangling-pointer with optimization.
    { dg-do compile }
-   { dg-options "-O2 -Wall -Wno-uninitialized -Wno-return-local-addr -ftrack-macro-expansion=0" } */
+   { dg-options "-O2 -Wall -Wno-uninitialized -Wno-return-local-addr -ftrack-macro-expansion=0" }
+   { dg-require-effective-target alloca } */
 
 typedef __INTPTR_TYPE__ intptr_t;
 typedef __SIZE_TYPE__   size_t;
diff --git a/gcc/testsuite/c-c++-common/Wdangling-pointer-4.c b/gcc/testsuite/c-c++-common/Wdangling-pointer-4.c
index e57e66f..a747aab 100644
--- a/gcc/testsuite/c-c++-common/Wdangling-pointer-4.c
+++ b/gcc/testsuite/c-c++-common/Wdangling-pointer-4.c
@@ -2,7 +2,8 @@
    variable within the same function
    Exercise -Wdangling-pointer for VLAs.
    { dg-do compile }
-   { dg-options "-O0 -Wall -ftrack-macro-expansion=0" } */
+   { dg-options "-O0 -Wall -ftrack-macro-expansion=0" }
+   { dg-require-effective-target alloca } */
 
 void sink (void*, ...);
 
diff --git a/gcc/testsuite/c-c++-common/Wdangling-pointer-5.c b/gcc/testsuite/c-c++-common/Wdangling-pointer-5.c
index 1f549ca..2a165ce 100644
--- a/gcc/testsuite/c-c++-common/Wdangling-pointer-5.c
+++ b/gcc/testsuite/c-c++-common/Wdangling-pointer-5.c
@@ -3,7 +3,8 @@
    Exercise -Wdangling-pointer for escaping stores of addreses of auto
    variables.
    { dg-do compile }
-   { dg-options "-O0 -Wall -ftrack-macro-expansion=0" } */
+   { dg-options "-O0 -Wall -ftrack-macro-expansion=0" }
+   { dg-require-effective-target alloca } */
 
 void* alloca (__SIZE_TYPE__);
 
diff --git a/gcc/testsuite/c-c++-common/Wdangling-pointer.c b/gcc/testsuite/c-c++-common/Wdangling-pointer.c
index 394ff92..0a18c3c 100644
--- a/gcc/testsuite/c-c++-common/Wdangling-pointer.c
+++ b/gcc/testsuite/c-c++-common/Wdangling-pointer.c
@@ -2,7 +2,8 @@
    variable within the same function
    Exercise basic cases of -Wdangling-pointer without optimization.
    { dg-do compile }
-   { dg-options "-O0 -Wall -Wno-uninitialized -ftrack-macro-expansion=0" } */
+   { dg-options "-O0 -Wall -Wno-uninitialized -ftrack-macro-expansion=0" }
+   { dg-require-effective-target alloca } */
 
 typedef __INTPTR_TYPE__ intptr_t;
 typedef __SIZE_TYPE__   size_t;
diff --git a/gcc/testsuite/c-c++-common/auto-init-11.c b/gcc/testsuite/c-c++-common/auto-init-11.c
index 6eb4687..aafa215 100644
--- a/gcc/testsuite/c-c++-common/auto-init-11.c
+++ b/gcc/testsuite/c-c++-common/auto-init-11.c
@@ -1,6 +1,7 @@
 /* Verify zero initialization for VLA automatic variables.  */
 /* { dg-do compile } */
 /* { dg-options "-ftrivial-auto-var-init=zero -fdump-tree-gimple" } */
+/* { dg-require-effective-target alloca } */
 
 extern void bar (int);
 
diff --git a/gcc/testsuite/c-c++-common/auto-init-12.c b/gcc/testsuite/c-c++-common/auto-init-12.c
index 964291c..c073bc9 100644
--- a/gcc/testsuite/c-c++-common/auto-init-12.c
+++ b/gcc/testsuite/c-c++-common/auto-init-12.c
@@ -1,6 +1,7 @@
 /* Verify zero initialization for VLA automatic variables.  */
 /* { dg-do compile } */
 /* { dg-options "-ftrivial-auto-var-init=pattern -fdump-tree-gimple" } */
+/* { dg-require-effective-target alloca } */
 
 extern void bar (int);
 
diff --git a/gcc/testsuite/c-c++-common/auto-init-15.c b/gcc/testsuite/c-c++-common/auto-init-15.c
index 5857287..77710a9 100644
--- a/gcc/testsuite/c-c++-common/auto-init-15.c
+++ b/gcc/testsuite/c-c++-common/auto-init-15.c
@@ -1,6 +1,7 @@
 /* Verify the auto initialization of nested VLA.  */
 /* { dg-do compile } */
 /* { dg-options "-ftrivial-auto-var-init=zero -fdump-tree-gimple" } */
+/* { dg-require-effective-target alloca } */
 
 void g(void *);
 
diff --git a/gcc/testsuite/c-c++-common/auto-init-16.c b/gcc/testsuite/c-c++-common/auto-init-16.c
index 1e30995..3714bc3 100644
--- a/gcc/testsuite/c-c++-common/auto-init-16.c
+++ b/gcc/testsuite/c-c++-common/auto-init-16.c
@@ -1,6 +1,7 @@
 /* Verify the auto initialization of nested VLA.  */
 /* { dg-do compile } */
 /* { dg-options "-ftrivial-auto-var-init=pattern -fdump-tree-gimple" } */
+/* { dg-require-effective-target alloca } */
 
 void g(void *);
 
diff --git a/gcc/testsuite/c-c++-common/torture/builtin-clear-padding-4.c b/gcc/testsuite/c-c++-common/torture/builtin-clear-padding-4.c
index d24f3b5..9cb202f 100644
--- a/gcc/testsuite/c-c++-common/torture/builtin-clear-padding-4.c
+++ b/gcc/testsuite/c-c++-common/torture/builtin-clear-padding-4.c
@@ -1,3 +1,5 @@
+/* { dg-require-effective-target alloca } */
+
 /* PR libstdc++/88101 */
 
 struct S { char a; short b; char c; };
diff --git a/gcc/testsuite/gcc.c-torture/compile/pr99787-1.c b/gcc/testsuite/gcc.c-torture/compile/pr99787-1.c
index d98b7e7..0e16301 100644
--- a/gcc/testsuite/gcc.c-torture/compile/pr99787-1.c
+++ b/gcc/testsuite/gcc.c-torture/compile/pr99787-1.c
@@ -1,4 +1,5 @@
 /* { dg-options "-ftree-slp-vectorize -ffp-contract=on -ffloat-store"  }  */
+/* { dg-require-effective-target alloca } */
 
 _Complex foo_x_0;
 int foo_n11, foo_i, foo_l;
diff --git a/gcc/testsuite/gcc.dg/Walloca-larger-than-4.c b/gcc/testsuite/gcc.dg/Walloca-larger-than-4.c
index 9d4c4e8..aac8b97 100644
--- a/gcc/testsuite/gcc.dg/Walloca-larger-than-4.c
+++ b/gcc/testsuite/gcc.dg/Walloca-larger-than-4.c
@@ -1,6 +1,7 @@
 /* PR middle-end/100425 - missing -Walloca-larger-than with -O0
    { dg-do compile }
-   { dg-options "-O0 -Wall -Walloca-larger-than=128" } */
+   { dg-options "-O0 -Wall -Walloca-larger-than=128" }
+   { dg-require-effective-target alloca } */
 
 typedef __SIZE_TYPE__ size_t;
 
diff --git a/gcc/testsuite/gcc.dg/Wdangling-pointer.c b/gcc/testsuite/gcc.dg/Wdangling-pointer.c
index d792d09..89e2220 100644
--- a/gcc/testsuite/gcc.dg/Wdangling-pointer.c
+++ b/gcc/testsuite/gcc.dg/Wdangling-pointer.c
@@ -1,6 +1,7 @@
 /* Exercise basic C-only cases of -Wdangling-pointer.
    { dg-do compile }
-   { dg-options "-O0 -Wall" } */
+   { dg-options "-O0 -Wall" }
+   { dg-require-effective-target alloca } */
 
 typedef __SIZE_TYPE__ size_t;
 
diff --git a/gcc/testsuite/gcc.dg/Wfree-nonheap-object-2.c b/gcc/testsuite/gcc.dg/Wfree-nonheap-object-2.c
index 2b00d77..e9316a5 100644
--- a/gcc/testsuite/gcc.dg/Wfree-nonheap-object-2.c
+++ b/gcc/testsuite/gcc.dg/Wfree-nonheap-object-2.c
@@ -2,7 +2,8 @@
    Verify that attempting to reallocate unallocated objects referenced
    either directly or through pointers is diagnosed.
    { dg-do compile }
-   { dg-options "-O2 -Wall -Wfree-nonheap-object" }  */
+   { dg-options "-O2 -Wall -Wfree-nonheap-object" }
+   { dg-require-effective-target alloca } */
 
 typedef __SIZE_TYPE__ size_t;
 
diff --git a/gcc/testsuite/gcc.dg/Wfree-nonheap-object.c b/gcc/testsuite/gcc.dg/Wfree-nonheap-object.c
index bb222cc..c7c6680 100644
--- a/gcc/testsuite/gcc.dg/Wfree-nonheap-object.c
+++ b/gcc/testsuite/gcc.dg/Wfree-nonheap-object.c
@@ -3,7 +3,8 @@
    or through pointers is diagnosed.  In most cases this doesn't require
    optimization.
    { dg-do compile }
-   { dg-options "-Wall -Wfree-nonheap-object" }  */
+   { dg-options "-Wall -Wfree-nonheap-object" }
+   { dg-require-effective-target alloca } */
 
 typedef __INTPTR_TYPE__ intptr_t;
 typedef __SIZE_TYPE__   size_t;
diff --git a/gcc/testsuite/gcc.dg/Wstringop-overflow-56.c b/gcc/testsuite/gcc.dg/Wstringop-overflow-56.c
index b3e598c..5ba4de4 100644
--- a/gcc/testsuite/gcc.dg/Wstringop-overflow-56.c
+++ b/gcc/testsuite/gcc.dg/Wstringop-overflow-56.c
@@ -1,7 +1,8 @@
 /* PR middle-end/92942 - missing -Wstringop-overflow for allocations with
    a negative lower bound size
    { dg-do compile }
-   { dg-options "-O2 -Wall" } */
+   { dg-options "-O2 -Wall" }
+   { dg-require-effective-target alloca } */
 
 #define SIZE_MAX        __SIZE_MAX__
 #define UINT8_MAX       __UINT8_MAX__
diff --git a/gcc/testsuite/gcc.dg/Wstringop-overflow-57.c b/gcc/testsuite/gcc.dg/Wstringop-overflow-57.c
index 173aa16..6ae8589 100644
--- a/gcc/testsuite/gcc.dg/Wstringop-overflow-57.c
+++ b/gcc/testsuite/gcc.dg/Wstringop-overflow-57.c
@@ -1,7 +1,8 @@
 /* Verify that an anti-range ~[A, B] with small positive A and B
    is handled correctly and doesn't trigger warnings.
    { dg-do compile }
-   { dg-options "-O2 -Wall" } */
+   { dg-options "-O2 -Wall" }
+   { dg-require-effective-target alloca } */
 
 typedef __typeof__ (sizeof 0) size_t;
 
diff --git a/gcc/testsuite/gcc.dg/Wstringop-overflow-67.c b/gcc/testsuite/gcc.dg/Wstringop-overflow-67.c
index 7b8f3f0..0f01082 100644
--- a/gcc/testsuite/gcc.dg/Wstringop-overflow-67.c
+++ b/gcc/testsuite/gcc.dg/Wstringop-overflow-67.c
@@ -1,7 +1,8 @@
 /* PR middle-end/100571 - bogus -Wstringop-overflow with VLA of elements
    larger than byte
    { dg-do compile }
-   { dg-options "-O2 -Wall" } */
+   { dg-options "-O2 -Wall" }
+   { dg-require-effective-target alloca } */
 
 __attribute__ ((access (read_only, 1, 2))) void fro (int *, int);
 __attribute__ ((access (write_only, 1, 2))) void fwo (int *, int);
diff --git a/gcc/testsuite/gcc.dg/Wstringop-overflow-71.c b/gcc/testsuite/gcc.dg/Wstringop-overflow-71.c
index f56a005..74311ec 100644
--- a/gcc/testsuite/gcc.dg/Wstringop-overflow-71.c
+++ b/gcc/testsuite/gcc.dg/Wstringop-overflow-71.c
@@ -2,7 +2,8 @@
    a larger scalar into a smaller array
    Verify warnings for overflow by stores of results of built-in functions.
    { dg-do compile }
-   { dg-options "-O2" } */
+   { dg-options "-O2" }
+   { dg-require-effective-target alloca } */
 
 typedef __INT16_TYPE__ int16_t;
 typedef __SIZE_TYPE__  size_t;
diff --git a/gcc/testsuite/gcc.dg/Wvla-larger-than-5.c b/gcc/testsuite/gcc.dg/Wvla-larger-than-5.c
index c131f83..ebd7fb3 100644
--- a/gcc/testsuite/gcc.dg/Wvla-larger-than-5.c
+++ b/gcc/testsuite/gcc.dg/Wvla-larger-than-5.c
@@ -1,6 +1,7 @@
 /* PR middle-end/100510 - bogus -Wvla-large-than with -Walloca
    { dg-do compile }
-   { dg-options "-O0 -Walloca -Wvla-larger-than=1000" } */
+   { dg-options "-O0 -Walloca -Wvla-larger-than=1000" }
+   { dg-require-effective-target alloca } */
 
 void f (void*);
 
diff --git a/gcc/testsuite/gcc.dg/analyzer/taint-alloc-1.c b/gcc/testsuite/gcc.dg/analyzer/taint-alloc-1.c
index 102aa4b..bc4f63b 100644
--- a/gcc/testsuite/gcc.dg/analyzer/taint-alloc-1.c
+++ b/gcc/testsuite/gcc.dg/analyzer/taint-alloc-1.c
@@ -1,5 +1,6 @@
 // TODO: remove need for this option
 /* { dg-additional-options "-fanalyzer-checker=taint" } */
+/* { dg-require-effective-target alloca } */
 
 #include "analyzer-decls.h"
 #include <stdio.h>
diff --git a/gcc/testsuite/gcc.dg/analyzer/torture/ubsan-1.c b/gcc/testsuite/gcc.dg/analyzer/torture/ubsan-1.c
index 2e1e6a0..18a5f8d 100644
--- a/gcc/testsuite/gcc.dg/analyzer/torture/ubsan-1.c
+++ b/gcc/testsuite/gcc.dg/analyzer/torture/ubsan-1.c
@@ -1,5 +1,6 @@
 /* { dg-skip-if "" { *-*-* } { "-fno-fat-lto-objects" } { "" } } */
 /* { dg-additional-options "-fsanitize=bounds" } */
+/* { dg-require-effective-target alloca } */
 
 #include <stdlib.h>
 #include "../analyzer-decls.h"
diff --git a/gcc/testsuite/gcc.dg/graphite/pr99085.c b/gcc/testsuite/gcc.dg/graphite/pr99085.c
index dc1c935..dd06886 100644
--- a/gcc/testsuite/gcc.dg/graphite/pr99085.c
+++ b/gcc/testsuite/gcc.dg/graphite/pr99085.c
@@ -1,6 +1,7 @@
 /* PR target/99085 */
 /* { dg-do compile } */
 /* { dg-options "-O2 -fgraphite-identity -fsel-sched-pipelining -fselective-scheduling2" } */
+/* { dg-require-effective-target alloca } */
 
 void
 foo (int m, int n, int o, int i)
diff --git a/gcc/testsuite/gcc.dg/pr100225.c b/gcc/testsuite/gcc.dg/pr100225.c
index b321634..f0efd29 100644
--- a/gcc/testsuite/gcc.dg/pr100225.c
+++ b/gcc/testsuite/gcc.dg/pr100225.c
@@ -1,6 +1,7 @@
 /* PR rtl-optimization/100225 */
 /* { dg-do compile } */
 /* { dg-options "-O1 -fmodulo-sched" } */
+/* { dg-require-effective-target alloca } */
 
 void
 vorbis_synthesis_lapout (void);
diff --git a/gcc/testsuite/gcc.dg/pr98721-1.c b/gcc/testsuite/gcc.dg/pr98721-1.c
index 868b071..1c7574f 100644
--- a/gcc/testsuite/gcc.dg/pr98721-1.c
+++ b/gcc/testsuite/gcc.dg/pr98721-1.c
@@ -1,6 +1,7 @@
 /* PR tree-optimization/98721 */
 /* { dg-do compile } */
 /* { dg-options "-O2" } */
+/* { dg-require-effective-target alloca } */
 
 int
 foo (int n)
diff --git a/gcc/testsuite/gcc.dg/pr99122-2.c b/gcc/testsuite/gcc.dg/pr99122-2.c
index 2b10542..c0c850f 100644
--- a/gcc/testsuite/gcc.dg/pr99122-2.c
+++ b/gcc/testsuite/gcc.dg/pr99122-2.c
@@ -1,5 +1,6 @@
 /* { dg-do compile } */
 /* { dg-options "-O2 -g -w" } */
+/* { dg-require-effective-target alloca } */
 
 static int foo ();
 
diff --git a/gcc/testsuite/gcc.dg/sso-14.c b/gcc/testsuite/gcc.dg/sso-14.c
index aeff3fb..7b1590a 100644
--- a/gcc/testsuite/gcc.dg/sso-14.c
+++ b/gcc/testsuite/gcc.dg/sso-14.c
@@ -2,6 +2,7 @@
 /* Testcase by George Thopas <george.thopas@gmail.com> */
 
 /* { dg-do compile } */
+/* { dg-require-effective-target alloca } */
 
 #include <stddef.h>
 #include <stdlib.h>
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-warn-25.c b/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-warn-25.c
index df46023..a28f066 100644
--- a/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-warn-25.c
+++ b/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-warn-25.c
@@ -1,6 +1,7 @@
 /* PR middle-end/97373 - missing warning on sprintf into allocated destination
    { dg-do compile }
-   { dg-options "-O2 -Wall -ftrack-macro-expansion=0" } */
+   { dg-options "-O2 -Wall -ftrack-macro-expansion=0" }
+   { dg-require-effective-target alloca } */
 
 #include "../range.h"
 
diff --git a/gcc/testsuite/gcc.dg/uninit-38.c b/gcc/testsuite/gcc.dg/uninit-38.c
index ff2aee6..9a20243 100644
--- a/gcc/testsuite/gcc.dg/uninit-38.c
+++ b/gcc/testsuite/gcc.dg/uninit-38.c
@@ -6,7 +6,8 @@
    be adjusted.  Ditto if -Wuninitialized output changes for some
    other reason.
    { dg-do compile { target { { lp64 || ilp32 } || llp64 } } }
-   { dg-options "-O2 -Wall -ftrack-macro-expansion=0 -fno-ipa-modref" } */
+   { dg-options "-O2 -Wall -ftrack-macro-expansion=0 -fno-ipa-modref" }
+   { dg-require-effective-target alloca } */
 
 #define CONCAT(x, y)   x ## y
 #define CAT(x, y)      CONCAT(x, y)
diff --git a/gcc/testsuite/gcc.dg/uninit-39.c b/gcc/testsuite/gcc.dg/uninit-39.c
index 0f91854..4d17f14 100644
--- a/gcc/testsuite/gcc.dg/uninit-39.c
+++ b/gcc/testsuite/gcc.dg/uninit-39.c
@@ -1,7 +1,8 @@
 /* PR c/98592 - ICE in gimple_canonical_types_compatible_p while formatting
    a MEM_REF
    { dg-do compile }
-   { dg-options "-O2 -Wall" } */
+   { dg-options "-O2 -Wall" }
+   { dg-require-effective-target alloca } */
 
 void f (int);
 
diff --git a/gcc/testsuite/gcc.dg/uninit-41.c b/gcc/testsuite/gcc.dg/uninit-41.c
index b485611..f2e17a8 100644
--- a/gcc/testsuite/gcc.dg/uninit-41.c
+++ b/gcc/testsuite/gcc.dg/uninit-41.c
@@ -1,7 +1,8 @@
 /* Verify that calls to non-modifying built-ins aren't considered
    potentially modifying.
    { dg-do compile }
-   { dg-options "-O2 -Wall" } */
+   { dg-options "-O2 -Wall" }
+   { dg-require-effective-target alloca } */
 
 typedef __SIZE_TYPE__ size_t;
 
diff --git a/gcc/testsuite/gcc.dg/uninit-pr100250.c b/gcc/testsuite/gcc.dg/uninit-pr100250.c
index 8e7a787..d47fc24c 100644
--- a/gcc/testsuite/gcc.dg/uninit-pr100250.c
+++ b/gcc/testsuite/gcc.dg/uninit-pr100250.c
@@ -1,6 +1,7 @@
 /* PR middle-end/100250 - ICE related to -Wmaybe-uninitialized
    { dg-do compile }
-   { dg-options "-O2 -Wall" } */
+   { dg-options "-O2 -Wall" }
+   { dg-require-effective-target alloca } */
 
 extern void f (int D, const int[D], const int[D]);
 
diff --git a/gcc/testsuite/gcc.dg/uninit-pr101300.c b/gcc/testsuite/gcc.dg/uninit-pr101300.c
index 4392e8ba..840fd0b 100644
--- a/gcc/testsuite/gcc.dg/uninit-pr101300.c
+++ b/gcc/testsuite/gcc.dg/uninit-pr101300.c
@@ -1,7 +1,8 @@
 /* PR middle-end/101300 - -fsanitize=undefined suppresses -Wuninitialized
    for a VLA read at -O0
    { dg-do compile }
-   { dg-options "-O0 -Wall -fsanitize=undefined" } */
+   { dg-options "-O0 -Wall -fsanitize=undefined" }
+   { dg-require-effective-target alloca } */
 
 int warn_vla_rd0 (int n)
 {
diff --git a/gcc/testsuite/gcc.dg/uninit-pr101494.c b/gcc/testsuite/gcc.dg/uninit-pr101494.c
index d3267b6..3c68d14 100644
--- a/gcc/testsuite/gcc.dg/uninit-pr101494.c
+++ b/gcc/testsuite/gcc.dg/uninit-pr101494.c
@@ -1,6 +1,7 @@
 /* PR middle-end/101494 - bogus -Wmaybe-uninitialized on memrchr of size 0
    { dg-do compile }
-   { dg-options "-O2 -Wall" } */
+   { dg-options "-O2 -Wall" }
+   { dg-require-effective-target alloca } */
 
 typedef __SIZE_TYPE__ size_t;
 
diff --git a/gcc/testsuite/gcc.dg/uninit-pr98578.c b/gcc/testsuite/gcc.dg/uninit-pr98578.c
index 745328b..db566c79 100644
--- a/gcc/testsuite/gcc.dg/uninit-pr98578.c
+++ b/gcc/testsuite/gcc.dg/uninit-pr98578.c
@@ -1,6 +1,7 @@
 /* PR middle-end/98578 - ICE warning on uninitialized VLA access
    { dg-do compile }
-   { dg-options "-O2 -Wall -fno-ipa-modref" } */
+   { dg-options "-O2 -Wall -fno-ipa-modref" }
+   { dg-require-effective-target alloca } */
 
 void* malloc (__SIZE_TYPE__);
 
diff --git a/gcc/testsuite/gcc.dg/uninit-pr98583.c b/gcc/testsuite/gcc.dg/uninit-pr98583.c
index 638b029..6159c95 100644
--- a/gcc/testsuite/gcc.dg/uninit-pr98583.c
+++ b/gcc/testsuite/gcc.dg/uninit-pr98583.c
@@ -1,7 +1,8 @@
 /* PR middle-end/98583 - missing -Wuninitialized reading from a second VLA
    in its own block
    { dg-do compile }
-   { dg-options "-O2 -Wall" } */
+   { dg-options "-O2 -Wall" }
+   { dg-require-effective-target alloca } */
 
 void f (int*);
 void g (int);
diff --git a/gcc/testsuite/gcc.dg/vla-stexp-1.c b/gcc/testsuite/gcc.dg/vla-stexp-1.c
index 97d6693..baaad36 100644
--- a/gcc/testsuite/gcc.dg/vla-stexp-1.c
+++ b/gcc/testsuite/gcc.dg/vla-stexp-1.c
@@ -1,6 +1,7 @@
 /* PR29970*/
 /* { dg-do run } */
 /* { dg-options "-Wall -O0" } */
+/* { dg-require-effective-target alloca } */
 
 int foo(void)
 {
diff --git a/gcc/testsuite/gcc.dg/vla-stexp-2.c b/gcc/testsuite/gcc.dg/vla-stexp-2.c
index 176f400..9f15125 100644
--- a/gcc/testsuite/gcc.dg/vla-stexp-2.c
+++ b/gcc/testsuite/gcc.dg/vla-stexp-2.c
@@ -1,6 +1,7 @@
 /* PR101838 */
 /* { dg-do run } */
 /* { dg-options "-Wpedantic -O0" } */
+/* { dg-require-effective-target alloca } */
 
 
 int bar0(
diff --git a/gcc/testsuite/gcc.dg/vla-stexp-4.c b/gcc/testsuite/gcc.dg/vla-stexp-4.c
index 612b5a8..929768c 100644
--- a/gcc/testsuite/gcc.dg/vla-stexp-4.c
+++ b/gcc/testsuite/gcc.dg/vla-stexp-4.c
@@ -1,6 +1,7 @@
 /* PR29970, PR91038 */
 /* { dg-do run } */
 /* { dg-options "-O0 -Wunused-variable" } */
+/* { dg-require-effective-target alloca } */
 
 int foo3b(void)   // should not return 0
 {
diff --git a/gcc/testsuite/gcc.dg/vla-stexp-5.c b/gcc/testsuite/gcc.dg/vla-stexp-5.c
index d6a7f2b..68614f2 100644
--- a/gcc/testsuite/gcc.dg/vla-stexp-5.c
+++ b/gcc/testsuite/gcc.dg/vla-stexp-5.c
@@ -1,6 +1,7 @@
 /* PR29970 */
 /* { dg-do run } */
 /* { dg-options "-Wunused-variable" } */
+/* { dg-require-effective-target alloca } */