5 files changed, 16 insertions, 4 deletions
diff --git a/gcc/testsuite/gcc.target/arm/stack-red-zone.c b/gcc/testsuite/gcc.target/arm/stack-red-zone.c
new file mode 100644
index 00000000000..b9f0f99371e
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/stack-red-zone.c
@@ -0,0 +1,12 @@
+/* No stack red zone.  PR38644.  */
+/* { dg-options "-mthumb -O2" } */
+/* { dg-final { scan-assembler "ldrb\[^\n\]*\\n\[\t \]*add\[\t \]*sp" } } */
+
+extern int doStreamReadBlock (int *, char *, int size, int);
+
+char readStream (int *s)
+{
+       char c = 0;
+       doStreamReadBlock (s, &c, 1, *s);
+       return c;
+}
diff --git a/gcc/testsuite/gcc.target/arm/wmul-1.c b/gcc/testsuite/gcc.target/arm/wmul-1.c
index 426c9393f20..ddddd509fe6 100644
--- a/gcc/testsuite/gcc.target/arm/wmul-1.c
+++ b/gcc/testsuite/gcc.target/arm/wmul-1.c
@@ -1,6 +1,6 @@
 /* { dg-do compile } */
 /* { dg-require-effective-target arm_dsp } */
-/* { dg-options "-O2" } */
+/* { dg-options "-O1 -fexpensive-optimizations" } */
 
 int mac(const short *a, const short *b, int sqr, int *sum)
 {
diff --git a/gcc/testsuite/gcc.target/arm/wmul-2.c b/gcc/testsuite/gcc.target/arm/wmul-2.c
index 898b5f065cb..2ea55f9fbe1 100644
--- a/gcc/testsuite/gcc.target/arm/wmul-2.c
+++ b/gcc/testsuite/gcc.target/arm/wmul-2.c
@@ -1,6 +1,6 @@
 /* { dg-do compile } */
 /* { dg-require-effective-target arm_dsp } */
-/* { dg-options "-O2" } */
+/* { dg-options "-O1 -fexpensive-optimizations" } */
 
 void vec_mpy(int y[], const short x[], short scaler)
 {
diff --git a/gcc/testsuite/gcc.target/arm/wmul-3.c b/gcc/testsuite/gcc.target/arm/wmul-3.c
index 83f73fba727..144b553082e 100644
--- a/gcc/testsuite/gcc.target/arm/wmul-3.c
+++ b/gcc/testsuite/gcc.target/arm/wmul-3.c
@@ -1,6 +1,6 @@
 /* { dg-do compile } */
 /* { dg-require-effective-target arm_dsp } */
-/* { dg-options "-O2" } */
+/* { dg-options "-O1 -fexpensive-optimizations" } */
 
 int mac(const short *a, const short *b, int sqr, int *sum)
 {
diff --git a/gcc/testsuite/gcc.target/arm/wmul-4.c b/gcc/testsuite/gcc.target/arm/wmul-4.c
index a297bda2182..68f9866746d 100644
--- a/gcc/testsuite/gcc.target/arm/wmul-4.c
+++ b/gcc/testsuite/gcc.target/arm/wmul-4.c
@@ -1,6 +1,6 @@
 /* { dg-do compile } */
 /* { dg-require-effective-target arm_dsp } */
-/* { dg-options "-O2" } */
+/* { dg-options "-O1 -fexpensive-optimizations" } */
 
 int mac(const int *a, const int *b, long long sqr, long long *sum)
 {