From: Paul Koning <ni1d@arrl.net>
Date: Thu, 1 Nov 2018 18:59:40 +0000 (-0400)
Subject: 20010904-1.c: Align 2 if pdp11.
X-Git-Tag: basepoints/gcc-10~3359
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=da06a0e93f5067d32144beb67b3453e865b9394d;p=thirdparty%2Fgcc.git

20010904-1.c: Align 2 if pdp11.

	* gcc.c-torture/execute/20010904-1.c: Align 2 if pdp11.
	* gcc.c-torture/execute/20010904-2.c: Ditto.
	* c-c++-common/builtin-arith-overflow-2.c: Skip if pdp11.
	* gcc.dg/Walloc-size-larger-than-4.c: Ditto.
	* gcc.dg/Walloc-size-larger-than-5.c: Ditto.
	* gcc.dg/Walloc-size-larger-than-6.c: Ditto.
	* gcc.dg/Walloc-size-larger-than-7.c: Ditto.
	* gcc.dg/Walloca-14.c: Ditto.
	* gcc.dg/Wlarger-than3.c: Ditto.
	* gcc.dg/compat/pr83487-1_y.c: Ditto.
	* gcc.dg/compat/struct-by-value-2_x.c: Ditto.
	* gcc.dg/compat/struct-by-value-3_x.c: Ditto.
	* gcc.dg/compat/struct-by-value-4_x.c: Ditto.
	* gcc.dg/compat/struct-by-value-5b_x.c: Ditto.
	* gcc.dg/compat/struct-by-value-6b_x.c: Ditto.
	* gcc.dg/compat/struct-by-value-7b_x.c: Ditto.
	* gcc.dg/compat/struct-by-value-8_x.c: Ditto.
	* gcc.dg/compat/struct-by-value-9_x.c: Ditto.
	* gcc.dg/compat/struct-by-value-10_x.c: Ditto.
	* gcc.dg/compat/struct-by-value-11_x.c: Ditto.
	* gcc.dg/compat/struct-by-value-12_x.c: Ditto.
	* gcc.dg/compat/struct-by-value-13_x.c: Ditto.
	* gcc.dg/compat/struct-by-value-14_x.c: Ditto.
	* gcc.dg/compat/struct-by-value-15_x.c: Ditto.
	* gcc.dg/compat/struct-by-value-16_x.c: Ditto.
	* gcc.dg/compat/struct-by-value-17_x.c: Ditto.
	* gcc.dg/compat/struct-by-value-18_x.c: Ditto.
	* gcc.dg/compat/struct-by-value-22_x.c: Ditto.
	* gcc.dg/compat/struct-return-2_x.c: Ditto.
	* gcc.dg/falign-labels-1.c: Ditto.
	* gcc.dg/long_branch.c: Ditto.
	* gcc.dg/nextafter-1.c: Ditto.
	* gcc.dg/pr35045.c: Ditto.
	* gcc.dg/pr48616.c: Ditto.
	* gcc.dg/pr84100.c: Ditto.
	* gcc.dg/tree-ssa/builtin-sprintf-9.c: Ditto.
	* gcc.dg/tree-ssa/builtin-sprintf-warn-10.c: Ditto.
	* gcc.dg/tree-ssa/builtin-sprintf.c: Ditto.
	* gcc.dg/Wattributes-10.c: Expect error if pdp11.
	* gcc.dg/attr-alloc_size-11.c: Don't XFAIL if pdp11.
	* gcc.dg/builtin-inf-1.c: Add pdp11 to warnings about INF.
	* gcc.dg/builtins-1.c: Ditto.

From-SVN: r265728
---

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 4bdd6ac7184f..2fd83f08bbfc 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,48 @@
+2018-11-01  Paul Koning  <ni1d@arrl.net>
+
+	* gcc.c-torture/execute/20010904-1.c: Align 2 if pdp11.
+	* gcc.c-torture/execute/20010904-2.c: Ditto.
+	* c-c++-common/builtin-arith-overflow-2.c: Skip if pdp11.
+	* gcc.dg/Walloc-size-larger-than-4.c: Ditto.
+	* gcc.dg/Walloc-size-larger-than-5.c: Ditto.
+	* gcc.dg/Walloc-size-larger-than-6.c: Ditto.
+	* gcc.dg/Walloc-size-larger-than-7.c: Ditto.
+	* gcc.dg/Walloca-14.c: Ditto.
+	* gcc.dg/Wlarger-than3.c: Ditto.
+	* gcc.dg/compat/pr83487-1_y.c: Ditto.
+	* gcc.dg/compat/struct-by-value-2_x.c: Ditto.
+	* gcc.dg/compat/struct-by-value-3_x.c: Ditto.
+	* gcc.dg/compat/struct-by-value-4_x.c: Ditto.
+	* gcc.dg/compat/struct-by-value-5b_x.c: Ditto.
+	* gcc.dg/compat/struct-by-value-6b_x.c: Ditto.
+	* gcc.dg/compat/struct-by-value-7b_x.c: Ditto.
+	* gcc.dg/compat/struct-by-value-8_x.c: Ditto.
+	* gcc.dg/compat/struct-by-value-9_x.c: Ditto.
+	* gcc.dg/compat/struct-by-value-10_x.c: Ditto.
+	* gcc.dg/compat/struct-by-value-11_x.c: Ditto.
+	* gcc.dg/compat/struct-by-value-12_x.c: Ditto.
+	* gcc.dg/compat/struct-by-value-13_x.c: Ditto.
+	* gcc.dg/compat/struct-by-value-14_x.c: Ditto.
+	* gcc.dg/compat/struct-by-value-15_x.c: Ditto.
+	* gcc.dg/compat/struct-by-value-16_x.c: Ditto.
+	* gcc.dg/compat/struct-by-value-17_x.c: Ditto.
+	* gcc.dg/compat/struct-by-value-18_x.c: Ditto.
+	* gcc.dg/compat/struct-by-value-22_x.c: Ditto.
+	* gcc.dg/compat/struct-return-2_x.c: Ditto.
+	* gcc.dg/falign-labels-1.c: Ditto.
+	* gcc.dg/long_branch.c: Ditto.
+	* gcc.dg/nextafter-1.c: Ditto.
+	* gcc.dg/pr35045.c: Ditto.
+	* gcc.dg/pr48616.c: Ditto.
+	* gcc.dg/pr84100.c: Ditto.
+	* gcc.dg/tree-ssa/builtin-sprintf-9.c: Ditto.
+	* gcc.dg/tree-ssa/builtin-sprintf-warn-10.c: Ditto.
+	* gcc.dg/tree-ssa/builtin-sprintf.c: Ditto.
+	* gcc.dg/Wattributes-10.c: Expect error if pdp11.
+	* gcc.dg/attr-alloc_size-11.c: Don't XFAIL if pdp11.
+	* gcc.dg/builtin-inf-1.c: Add pdp11 to warnings about INF.
+	* gcc.dg/builtins-1.c: Ditto.
+
 2018-11-01  Thomas Koenig  <tkoenig@gcc.gnu.org>
 
 	PR fortran/46020
diff --git a/gcc/testsuite/c-c++-common/builtin-arith-overflow-2.c b/gcc/testsuite/c-c++-common/builtin-arith-overflow-2.c
index 7dd0e50dbcb3..5f4db2d3743e 100644
--- a/gcc/testsuite/c-c++-common/builtin-arith-overflow-2.c
+++ b/gcc/testsuite/c-c++-common/builtin-arith-overflow-2.c
@@ -1,7 +1,7 @@
 /* PR c/68120 - can't easily deal with integer overflow at compile time */
 /* { dg-do run } */
 /* { dg-additional-options "-Wno-long-long" } */
-/* { dg-skip-if "Program too big" { "avr-*-*" } } */
+/* { dg-skip-if "Program too big" { "avr-*-* pdp11*-*-*" } } */
 
 #define SCHAR_MAX    __SCHAR_MAX__
 #define SHRT_MAX     __SHRT_MAX__
diff --git a/gcc/testsuite/gcc.c-torture/execute/20010904-1.c b/gcc/testsuite/gcc.c-torture/execute/20010904-1.c
index 92b258b52025..cb4d759e6b87 100644
--- a/gcc/testsuite/gcc.c-torture/execute/20010904-1.c
+++ b/gcc/testsuite/gcc.c-torture/execute/20010904-1.c
@@ -1,4 +1,12 @@
-typedef struct x { int a; int b; } __attribute__((aligned(32))) X;
+/* If some target has a Max alignment less than 32, please create
+   a #ifdef around the alignment and add your alignment.  */
+#ifdef __pdp11__
+#define alignment 2
+#else
+#define alignment 32
+#endif
+
+typedef struct x { int a; int b; } __attribute__((aligned(alignment))) X;
 typedef struct y { X x[32]; int c; } Y;
 
 Y y[2];
diff --git a/gcc/testsuite/gcc.c-torture/execute/20010904-2.c b/gcc/testsuite/gcc.c-torture/execute/20010904-2.c
index cbe49806c603..7f3affe10fe1 100644
--- a/gcc/testsuite/gcc.c-torture/execute/20010904-2.c
+++ b/gcc/testsuite/gcc.c-torture/execute/20010904-2.c
@@ -1,4 +1,12 @@
-typedef struct x { int a; int b; } __attribute__((aligned(32))) X;
+/* If some target has a Max alignment less than 32, please create
+   a #ifdef around the alignment and add your alignment.  */
+#ifdef __pdp11__
+#define alignment 2
+#else
+#define alignment 32
+#endif
+
+typedef struct x { int a; int b; } __attribute__((aligned(aligned))) X;
 typedef struct y { X x; X y[31]; int c; } Y;
 
 Y y[2];
diff --git a/gcc/testsuite/gcc.dg/Walloc-size-larger-than-4.c b/gcc/testsuite/gcc.dg/Walloc-size-larger-than-4.c
index e4fde5a8eb90..4b3a64b56abb 100644
--- a/gcc/testsuite/gcc.dg/Walloc-size-larger-than-4.c
+++ b/gcc/testsuite/gcc.dg/Walloc-size-larger-than-4.c
@@ -1,5 +1,6 @@
 /* PR middle-end/82063 - issues with arguments enabled by -Wall
    { dg-do compile }
+   { dg-skip-if "small address space" { "pdp11-*-*" } }
    { dg-options "-O -Walloc-size-larger-than=1MiB -ftrack-macro-expansion=0" } */
 
 void sink (void*);
diff --git a/gcc/testsuite/gcc.dg/Walloc-size-larger-than-5.c b/gcc/testsuite/gcc.dg/Walloc-size-larger-than-5.c
index bfea259e0ad9..4217ad651102 100644
--- a/gcc/testsuite/gcc.dg/Walloc-size-larger-than-5.c
+++ b/gcc/testsuite/gcc.dg/Walloc-size-larger-than-5.c
@@ -1,5 +1,6 @@
 /* PR middle-end/82063 - issues with arguments enabled by -Wall
    { dg-do compile }
+   { dg-skip-if "small address space" { "pdp11-*-*" } }
    { dg-options "-O -Walloc-size-larger-than=1MB -ftrack-macro-expansion=0" } */
 
 void sink (void*);
diff --git a/gcc/testsuite/gcc.dg/Walloc-size-larger-than-6.c b/gcc/testsuite/gcc.dg/Walloc-size-larger-than-6.c
index 1eb83a5f613e..a46fce7d0ca6 100644
--- a/gcc/testsuite/gcc.dg/Walloc-size-larger-than-6.c
+++ b/gcc/testsuite/gcc.dg/Walloc-size-larger-than-6.c
@@ -1,5 +1,6 @@
 /* PR middle-end/82063 - issues with arguments enabled by -Wall
    { dg-do compile }
+   { dg-skip-if "small address space" { "pdp11-*-*" } }
    { dg-options "-O -Walloc-size-larger-than=1GiB -ftrack-macro-expansion=0" } */
 
 void sink (void*);
diff --git a/gcc/testsuite/gcc.dg/Walloc-size-larger-than-7.c b/gcc/testsuite/gcc.dg/Walloc-size-larger-than-7.c
index 5188203337d3..4d9aafd661e0 100644
--- a/gcc/testsuite/gcc.dg/Walloc-size-larger-than-7.c
+++ b/gcc/testsuite/gcc.dg/Walloc-size-larger-than-7.c
@@ -1,5 +1,6 @@
 /* PR middle-end/82063 - issues with arguments enabled by -Wall
    { dg-do compile }
+   { dg-skip-if "small address space" { "pdp11-*-*" } }
    { dg-options "-O -Walloc-size-larger-than=1GB -ftrack-macro-expansion=0" } */
 
 void sink (void*);
diff --git a/gcc/testsuite/gcc.dg/Walloca-14.c b/gcc/testsuite/gcc.dg/Walloca-14.c
index ea48227f7e82..657402f3891a 100644
--- a/gcc/testsuite/gcc.dg/Walloca-14.c
+++ b/gcc/testsuite/gcc.dg/Walloca-14.c
@@ -1,6 +1,7 @@
 /* PR tree-optimization/80109 */
 /* { dg-do compile } */
 /* { dg-require-effective-target alloca } */
+/* { dg-skip-if "small address space" { "pdp11-*-*" } } */
 /* { dg-options "-O2 -Walloca-larger-than=126812070" } */
 
 void
diff --git a/gcc/testsuite/gcc.dg/Wattributes-10.c b/gcc/testsuite/gcc.dg/Wattributes-10.c
index f88d7a2fb46a..37fd2c1b7552 100644
--- a/gcc/testsuite/gcc.dg/Wattributes-10.c
+++ b/gcc/testsuite/gcc.dg/Wattributes-10.c
@@ -12,7 +12,8 @@ struct S
 
   int* __attribute__ ((aligned (16), packed)) qaligned;   /* { dg-warning "ignoring attribute .packed. because it conflicts with attribute .aligned." } */
   int* __attribute__ ((packed, aligned (16))) qpacked;    /* { dg-warning ".packed. attribute ignored for type .int \\\*." } */
-} s;
+} s;    /* { dg-error "alignment of 's' is greater" { target pdp11*-*-* } } */
+
 
 void test (void)
 {
diff --git a/gcc/testsuite/gcc.dg/Wlarger-than3.c b/gcc/testsuite/gcc.dg/Wlarger-than3.c
index b9eaa563770b..ebac525ed62d 100644
--- a/gcc/testsuite/gcc.dg/Wlarger-than3.c
+++ b/gcc/testsuite/gcc.dg/Wlarger-than3.c
@@ -1,5 +1,6 @@
 /* Exercise -Wlarger-than= with a byte-size suffix.
    { dg-do compile }
+   { dg-skip-if "small address space" { "pdp11-*-*" } }
    { dg-options "-Wlarger-than=1MiB" } */
 
 #define MB (1000 * 1000)    /* MegaByte */
diff --git a/gcc/testsuite/gcc.dg/attr-alloc_size-11.c b/gcc/testsuite/gcc.dg/attr-alloc_size-11.c
index 3ec44dc1463e..301a06fd4644 100644
--- a/gcc/testsuite/gcc.dg/attr-alloc_size-11.c
+++ b/gcc/testsuite/gcc.dg/attr-alloc_size-11.c
@@ -47,8 +47,8 @@ typedef __SIZE_TYPE__    size_t;
 
 /* The following tests fail because of missing range information.  The xfail
    exclusions are PR79356.  */
-TEST (signed char, SCHAR_MIN + 2, ALLOC_MAX);   /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" "missing range info for signed char" { xfail { ! { aarch64*-*-* arm*-*-* avr-*-* alpha*-*-* ia64-*-* mips*-*-* powerpc*-*-* sparc*-*-* s390*-*-* visium-*-* } } } } */
-TEST (short, SHRT_MIN + 2, ALLOC_MAX); /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" "missing range info for short" { xfail { ! { aarch64*-*-* arm*-*-* alpha*-*-* avr-*-* ia64-*-* mips*-*-* powerpc*-*-* sparc*-*-* s390x-*-* visium-*-* } } } } */
+TEST (signed char, SCHAR_MIN + 2, ALLOC_MAX);   /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" "missing range info for signed char" { xfail { ! { aarch64*-*-* arm*-*-* avr-*-* alpha*-*-* ia64-*-* mips*-*-* pdp11*-*-* powerpc*-*-* sparc*-*-* s390*-*-* visium-*-* } } } } */
+TEST (short, SHRT_MIN + 2, ALLOC_MAX); /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" "missing range info for short" { xfail { ! { aarch64*-*-* arm*-*-* alpha*-*-* avr-*-* ia64-*-* mips*-*-* pdp11*-*-* powerpc*-*-* sparc*-*-* s390x-*-* visium-*-* } } } } */
 TEST (int, INT_MIN + 2, ALLOC_MAX);    /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" } */
 TEST (int, -3, ALLOC_MAX);             /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" } */
 TEST (int, -2, ALLOC_MAX);             /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" } */
diff --git a/gcc/testsuite/gcc.dg/builtin-inf-1.c b/gcc/testsuite/gcc.dg/builtin-inf-1.c
index 1e00bdc07614..4b7dcd8ecb1e 100644
--- a/gcc/testsuite/gcc.dg/builtin-inf-1.c
+++ b/gcc/testsuite/gcc.dg/builtin-inf-1.c
@@ -1,11 +1,11 @@
 /* { dg-do compile } */
 
 float fi = __builtin_inff();
-/* { dg-error "does not support infinity" "INF unsupported" { target vax-*-* spu-*-* } .-1 } */
+/* { dg-error "does not support infinity" "INF unsupported" { target pdp11*-*-* vax-*-* spu-*-* } .-1 } */
 double di = __builtin_inf();
-/* { dg-error "does not support infinity" "INF unsupported" { target vax-*-* } .-1 } */
+/* { dg-error "does not support infinity" "INF unsupported" { target pdp11*-*-* vax-*-* } .-1 } */
 long double li = __builtin_infl();
-/* { dg-error "does not support infinity" "INF unsupported" { target vax-*-* } .-1 } */
+/* { dg-error "does not support infinity" "INF unsupported" { target pdp11*-*-* vax-*-* } .-1 } */
 
 float fh = __builtin_huge_valf();
 double dh = __builtin_huge_val();
diff --git a/gcc/testsuite/gcc.dg/builtins-1.c b/gcc/testsuite/gcc.dg/builtins-1.c
index 5dab9fe0a4e0..26e8a05229a0 100644
--- a/gcc/testsuite/gcc.dg/builtins-1.c
+++ b/gcc/testsuite/gcc.dg/builtins-1.c
@@ -144,7 +144,7 @@ FPTEST2ARG2_REENT (gamma, int *) /* gamma_r */
 FPTEST0     (huge_val)
 FPTEST2     (hypot)
 FPTEST1     (ilogb)
-FPTEST0     (inf)  /* { dg-warning "target format does not support infinity" "inf" {target spu-*-*} } */
+FPTEST0     (inf)  /* { dg-warning "target format does not support infinity" "inf" {target pdp11*-*-* spu-*-*} } */
 FPTEST1     (j0)
 FPTEST1     (j1)
 FPTEST2ARG1 (jn, int)
diff --git a/gcc/testsuite/gcc.dg/compat/pr83487-1_y.c b/gcc/testsuite/gcc.dg/compat/pr83487-1_y.c
index ef927bb21e50..7b8db0ee1c8c 100644
--- a/gcc/testsuite/gcc.dg/compat/pr83487-1_y.c
+++ b/gcc/testsuite/gcc.dg/compat/pr83487-1_y.c
@@ -1,3 +1,5 @@
+/* { dg-skip-if "no large alignment" { pdp11-*-* } } */
+
 #include "pr83487-1.h"
 
 struct A a;
diff --git a/gcc/testsuite/gcc.dg/compat/struct-by-value-10_x.c b/gcc/testsuite/gcc.dg/compat/struct-by-value-10_x.c
index 5954104aa76d..c09b343885c3 100644
--- a/gcc/testsuite/gcc.dg/compat/struct-by-value-10_x.c
+++ b/gcc/testsuite/gcc.dg/compat/struct-by-value-10_x.c
@@ -1,3 +1,5 @@
+/* { dg-skip-if "limited code space" { pdp11-*-* } } */
+
 #include "compat-common.h"
 
 #include "fp2-struct-defs.h"
diff --git a/gcc/testsuite/gcc.dg/compat/struct-by-value-11_x.c b/gcc/testsuite/gcc.dg/compat/struct-by-value-11_x.c
index cea1ac096887..bbc84d0daabe 100644
--- a/gcc/testsuite/gcc.dg/compat/struct-by-value-11_x.c
+++ b/gcc/testsuite/gcc.dg/compat/struct-by-value-11_x.c
@@ -1,3 +1,5 @@
+/* { dg-skip-if "limited code space" { pdp11-*-* } } */
+
 #include "compat-common.h"
 
 #include "fp-struct-defs.h"
diff --git a/gcc/testsuite/gcc.dg/compat/struct-by-value-12_x.c b/gcc/testsuite/gcc.dg/compat/struct-by-value-12_x.c
index 925ce9270b9e..234112d71229 100644
--- a/gcc/testsuite/gcc.dg/compat/struct-by-value-12_x.c
+++ b/gcc/testsuite/gcc.dg/compat/struct-by-value-12_x.c
@@ -1,3 +1,5 @@
+/* { dg-skip-if "limited code space" { pdp11-*-* } } */
+
 #include "compat-common.h"
 
 #include "fp-struct-defs.h"
diff --git a/gcc/testsuite/gcc.dg/compat/struct-by-value-13_x.c b/gcc/testsuite/gcc.dg/compat/struct-by-value-13_x.c
index f27222f2df60..7cf149f1257a 100644
--- a/gcc/testsuite/gcc.dg/compat/struct-by-value-13_x.c
+++ b/gcc/testsuite/gcc.dg/compat/struct-by-value-13_x.c
@@ -1,3 +1,5 @@
+/* { dg-skip-if "limited code space" { pdp11-*-* } } */
+
 #include "compat-common.h"
 
 #include "fp-struct-defs.h"
diff --git a/gcc/testsuite/gcc.dg/compat/struct-by-value-14_x.c b/gcc/testsuite/gcc.dg/compat/struct-by-value-14_x.c
index bb8db70721eb..181375ff1101 100644
--- a/gcc/testsuite/gcc.dg/compat/struct-by-value-14_x.c
+++ b/gcc/testsuite/gcc.dg/compat/struct-by-value-14_x.c
@@ -1,3 +1,5 @@
+/* { dg-skip-if "limited code space" { pdp11-*-* } } */
+
 #include "compat-common.h"
 
 #include "fp-struct-defs.h"
diff --git a/gcc/testsuite/gcc.dg/compat/struct-by-value-15_x.c b/gcc/testsuite/gcc.dg/compat/struct-by-value-15_x.c
index 4409c9668dc1..d36ee1e7c0da 100644
--- a/gcc/testsuite/gcc.dg/compat/struct-by-value-15_x.c
+++ b/gcc/testsuite/gcc.dg/compat/struct-by-value-15_x.c
@@ -1,3 +1,5 @@
+/* { dg-skip-if "limited code space" { pdp11-*-* } } */
+
 #include "compat-common.h"
 
 #include "fp-struct-defs.h"
diff --git a/gcc/testsuite/gcc.dg/compat/struct-by-value-16_x.c b/gcc/testsuite/gcc.dg/compat/struct-by-value-16_x.c
index 05e36fe26c06..ddec5fbc9e6b 100644
--- a/gcc/testsuite/gcc.dg/compat/struct-by-value-16_x.c
+++ b/gcc/testsuite/gcc.dg/compat/struct-by-value-16_x.c
@@ -1,3 +1,5 @@
+/* { dg-skip-if "limited code space" { pdp11-*-* } } */
+
 #include "compat-common.h"
 
 #include "fp-struct-defs.h"
diff --git a/gcc/testsuite/gcc.dg/compat/struct-by-value-17_x.c b/gcc/testsuite/gcc.dg/compat/struct-by-value-17_x.c
index 8c2704522436..782de70ca8d4 100644
--- a/gcc/testsuite/gcc.dg/compat/struct-by-value-17_x.c
+++ b/gcc/testsuite/gcc.dg/compat/struct-by-value-17_x.c
@@ -1,3 +1,5 @@
+/* { dg-skip-if "limited code space" { pdp11-*-* } } */
+
 #include "compat-common.h"
 
 #include "fp-struct-defs.h"
diff --git a/gcc/testsuite/gcc.dg/compat/struct-by-value-18_x.c b/gcc/testsuite/gcc.dg/compat/struct-by-value-18_x.c
index aa10a6e1a1a2..331007351e51 100644
--- a/gcc/testsuite/gcc.dg/compat/struct-by-value-18_x.c
+++ b/gcc/testsuite/gcc.dg/compat/struct-by-value-18_x.c
@@ -1,3 +1,5 @@
+/* { dg-skip-if "limited code space" { pdp11-*-* } } */
+
 #include "compat-common.h"
 
 #include "fp-struct-defs.h"
diff --git a/gcc/testsuite/gcc.dg/compat/struct-by-value-22_x.c b/gcc/testsuite/gcc.dg/compat/struct-by-value-22_x.c
index 6f1cdc86014d..9384c15e7d88 100644
--- a/gcc/testsuite/gcc.dg/compat/struct-by-value-22_x.c
+++ b/gcc/testsuite/gcc.dg/compat/struct-by-value-22_x.c
@@ -1,3 +1,5 @@
+/* { dg-skip-if "limited code space" { pdp11-*-* } } */
+
 #ifndef SKIP_VLA_IN_STRUCT
 
 #ifndef T
diff --git a/gcc/testsuite/gcc.dg/compat/struct-by-value-2_x.c b/gcc/testsuite/gcc.dg/compat/struct-by-value-2_x.c
index 57c6da0c0bb0..165744411060 100644
--- a/gcc/testsuite/gcc.dg/compat/struct-by-value-2_x.c
+++ b/gcc/testsuite/gcc.dg/compat/struct-by-value-2_x.c
@@ -1,3 +1,5 @@
+/* { dg-skip-if "limited code space" { pdp11-*-* } } */
+
 #include "compat-common.h"
 
 #define T(N, NAME, TYPE)					\
diff --git a/gcc/testsuite/gcc.dg/compat/struct-by-value-3_x.c b/gcc/testsuite/gcc.dg/compat/struct-by-value-3_x.c
index 38e5b546a5b8..e5a43afc58cb 100644
--- a/gcc/testsuite/gcc.dg/compat/struct-by-value-3_x.c
+++ b/gcc/testsuite/gcc.dg/compat/struct-by-value-3_x.c
@@ -1,3 +1,5 @@
+/* { dg-skip-if "limited code space" { pdp11-*-* } } */
+
 #include "compat-common.h"
 
 #define T(TYPE)							\
diff --git a/gcc/testsuite/gcc.dg/compat/struct-by-value-4_x.c b/gcc/testsuite/gcc.dg/compat/struct-by-value-4_x.c
index def20ce8b031..55c8bc73fa30 100644
--- a/gcc/testsuite/gcc.dg/compat/struct-by-value-4_x.c
+++ b/gcc/testsuite/gcc.dg/compat/struct-by-value-4_x.c
@@ -1,3 +1,5 @@
+/* { dg-skip-if "limited code space" { pdp11-*-* } } */
+
 #include "compat-common.h"
 
 #define T(N, TYPE)						\
diff --git a/gcc/testsuite/gcc.dg/compat/struct-by-value-5b_x.c b/gcc/testsuite/gcc.dg/compat/struct-by-value-5b_x.c
index 3c371558728d..3612413422a5 100644
--- a/gcc/testsuite/gcc.dg/compat/struct-by-value-5b_x.c
+++ b/gcc/testsuite/gcc.dg/compat/struct-by-value-5b_x.c
@@ -1,3 +1,5 @@
+/* { dg-skip-if "limited code space" { pdp11-*-* } } */
+
 #include "compat-common.h"
 
 #include "fp-struct-defs.h"
diff --git a/gcc/testsuite/gcc.dg/compat/struct-by-value-6b_x.c b/gcc/testsuite/gcc.dg/compat/struct-by-value-6b_x.c
index 5b285c9c5b60..68062d911cbe 100644
--- a/gcc/testsuite/gcc.dg/compat/struct-by-value-6b_x.c
+++ b/gcc/testsuite/gcc.dg/compat/struct-by-value-6b_x.c
@@ -1,3 +1,5 @@
+/* { dg-skip-if "limited code space" { pdp11-*-* } } */
+
 #include "compat-common.h"
 
 #include "fp-struct-defs.h"
diff --git a/gcc/testsuite/gcc.dg/compat/struct-by-value-7b_x.c b/gcc/testsuite/gcc.dg/compat/struct-by-value-7b_x.c
index 508ff6165849..587bc27709e9 100644
--- a/gcc/testsuite/gcc.dg/compat/struct-by-value-7b_x.c
+++ b/gcc/testsuite/gcc.dg/compat/struct-by-value-7b_x.c
@@ -1,3 +1,5 @@
+/* { dg-skip-if "limited code space" { pdp11-*-* } } */
+
 #include "compat-common.h"
 
 #include "fp-struct-defs.h"
diff --git a/gcc/testsuite/gcc.dg/compat/struct-by-value-8_x.c b/gcc/testsuite/gcc.dg/compat/struct-by-value-8_x.c
index 5a376fd38cfc..aadba93c191c 100644
--- a/gcc/testsuite/gcc.dg/compat/struct-by-value-8_x.c
+++ b/gcc/testsuite/gcc.dg/compat/struct-by-value-8_x.c
@@ -1,3 +1,5 @@
+/* { dg-skip-if "limited code space" { pdp11-*-* } } */
+
 #include "compat-common.h"
 
 #define T(N, TYPE)						\
diff --git a/gcc/testsuite/gcc.dg/compat/struct-by-value-9_x.c b/gcc/testsuite/gcc.dg/compat/struct-by-value-9_x.c
index 5bbef770aca6..cf83e7d3951b 100644
--- a/gcc/testsuite/gcc.dg/compat/struct-by-value-9_x.c
+++ b/gcc/testsuite/gcc.dg/compat/struct-by-value-9_x.c
@@ -1,3 +1,5 @@
+/* { dg-skip-if "limited code space" { pdp11-*-* } } */
+
 #include "compat-common.h"
 
 #define T(N, TYPE)						\
diff --git a/gcc/testsuite/gcc.dg/compat/struct-return-2_x.c b/gcc/testsuite/gcc.dg/compat/struct-return-2_x.c
index 590c30aa9378..34d1e64ca6fc 100644
--- a/gcc/testsuite/gcc.dg/compat/struct-return-2_x.c
+++ b/gcc/testsuite/gcc.dg/compat/struct-return-2_x.c
@@ -1,3 +1,5 @@
+/* { dg-skip-if "limited code space" { pdp11-*-* } } */
+
 #include "compat-common.h"
 
 #ifdef SKIP_VA
diff --git a/gcc/testsuite/gcc.dg/falign-labels-1.c b/gcc/testsuite/gcc.dg/falign-labels-1.c
index be277e4e0435..e4c61c8b1930 100644
--- a/gcc/testsuite/gcc.dg/falign-labels-1.c
+++ b/gcc/testsuite/gcc.dg/falign-labels-1.c
@@ -1,5 +1,6 @@
 /* { dg-do run } */
 /* { dg-options "-falign-labels=8" } */
+/* { dg-skip-if "no label alignment > 2" { "pdp11-*-*" } } */
 
 /* On ARMv7-A CPUs, this test resulted in incorrect code generation.
    The code generated for the switch statement expected the jump table
diff --git a/gcc/testsuite/gcc.dg/long_branch.c b/gcc/testsuite/gcc.dg/long_branch.c
index f388a80c8925..97fb169b0431 100644
--- a/gcc/testsuite/gcc.dg/long_branch.c
+++ b/gcc/testsuite/gcc.dg/long_branch.c
@@ -1,5 +1,6 @@
 /* { dg-do run } */
 /* { dg-options "-O2 -fno-reorder-blocks" } */
+/* { dg-skip-if "limited code space" { pdp11-*-* } } */
 
 void abort ();
 
diff --git a/gcc/testsuite/gcc.dg/nextafter-1.c b/gcc/testsuite/gcc.dg/nextafter-1.c
index 502e0f49b1ee..1916ac29ad94 100644
--- a/gcc/testsuite/gcc.dg/nextafter-1.c
+++ b/gcc/testsuite/gcc.dg/nextafter-1.c
@@ -2,6 +2,7 @@
 /* { dg-do run } */
 /* { dg-options "-O2 -fno-math-errno -fno-trapping-math -fdump-tree-optimized" } */
 /* { dg-add-options ieee } */
+/* { dg-skip-if "not IEEE float" { "pdp11-*-*" } } */
 /* { dg-final { scan-tree-dump-not "nextafter" "optimized" } } */
 /* { dg-final { scan-tree-dump-not "nexttoward" "optimized" } } */
 
diff --git a/gcc/testsuite/gcc.dg/pr35045.c b/gcc/testsuite/gcc.dg/pr35045.c
index 626bde4b67b1..9cf649393eda 100644
--- a/gcc/testsuite/gcc.dg/pr35045.c
+++ b/gcc/testsuite/gcc.dg/pr35045.c
@@ -1,5 +1,6 @@
 /* { dg-do run } */
 /* { dg-skip-if "" { { i?86-*-* x86_64-*-* } && { ia32 && { ! nonpic } } } } */
+/* { dg-skip-if "Not enough registers" { "pdp11-*-*" } } */
 /* { dg-options "-O2 -fgcse-after-reload" } */
 
 extern void abort (void);
diff --git a/gcc/testsuite/gcc.dg/pr48616.c b/gcc/testsuite/gcc.dg/pr48616.c
index 4517d7921190..555532c641c6 100644
--- a/gcc/testsuite/gcc.dg/pr48616.c
+++ b/gcc/testsuite/gcc.dg/pr48616.c
@@ -2,6 +2,7 @@
 /* { dg-do run } */
 /* { dg-options "-O2 -ftree-vectorize" } */
 /* { dg-additional-options "-fno-common" { target hppa*-*-hpux* } } */
+/* { dg-skip-if "no alignment > 2" { "pdp11-*-*" } } */
 
 extern void abort (void);
 int a[4] __attribute__((aligned (32)));
diff --git a/gcc/testsuite/gcc.dg/pr84100.c b/gcc/testsuite/gcc.dg/pr84100.c
index 86fbc4f7a3e2..fd157ac34a6a 100644
--- a/gcc/testsuite/gcc.dg/pr84100.c
+++ b/gcc/testsuite/gcc.dg/pr84100.c
@@ -1,6 +1,7 @@
 /* PR c/84100 */
 /* { dg-do compile } */
 /* { dg-options "-O2" } */
+/* { dg-skip-if "no code alignment > 2" { "pdp11-*-*" } } */
 
 void bar (void);
 
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-9.c b/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-9.c
index 9090ec1ba2af..b4a05bbd38af 100644
--- a/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-9.c
+++ b/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-9.c
@@ -1,5 +1,6 @@
 /* PR tree-optimization/86274 - SEGFAULT when logging std::to_string(NAN)
    { dg-do compile }
+   { dg-skip-if "not IEEE float layout" { "pdp11-*-*" } }
    { dg-options "-O2 -Wall -fdump-tree-optimized" }  */
 
 typedef __SIZE_TYPE__ size_t;
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-warn-10.c b/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-warn-10.c
index 82163b28d757..facc023da83d 100644
--- a/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-warn-10.c
+++ b/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-warn-10.c
@@ -3,6 +3,7 @@
    point directives.
    { dg-do compile }
    { dg-require-effective-target double64plus }
+   { dg-skip-if "not IEEE float layout" { "pdp11-*-*" } }
    { dg-options "-O2 -Wformat -Wformat-overflow -ftrack-macro-expansion=0" } */
 
 typedef __builtin_va_list va_list;
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf.c b/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf.c
index f7e779a1e8d2..f90558e9b7ee 100644
--- a/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf.c
+++ b/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf.c
@@ -4,6 +4,7 @@
    link if any of the assertions fails.  Without optimization the test
    aborts at runtime if any of the assertions fails.  */
 /* { dg-do run } */
+/* { dg-skip-if "not IEEE float layout" { "pdp11-*-*" } } */
 /* { dg-additional-options "-O2 -Wall -Wno-pedantic -fprintf-return-value" } */
 
 #ifndef LINE