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-rw-r--r--gcc/ChangeLog6
-rw-r--r--gcc/config/arm/arm.c4
-rw-r--r--gcc/testsuite/ChangeLog5
-rw-r--r--gcc/testsuite/gcc.target/arm/big-endian-subreg.c13
4 files changed, 26 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 046ca6e4d0f..3f6d410bcad 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,6 +1,12 @@
2018-07-05 Tamar Christina <tamar.christina@arm.com>
PR target/84711
+ * config/arm/arm.c (arm_can_change_mode_class): Use GET_MODE_UNIT_SIZE
+ instead of GET_MODE_SIZE when comparing Units.
+
+2018-07-05 Tamar Christina <tamar.christina@arm.com>
+
+ PR target/84711
* rtlanal.c (set_noop_p): Constrain on mode change,
include hard-reg-set.h
diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
index 8d5897c8f0f..ec3abbcba9f 100644
--- a/gcc/config/arm/arm.c
+++ b/gcc/config/arm/arm.c
@@ -31512,8 +31512,8 @@ arm_can_change_mode_class (machine_mode from, machine_mode to,
{
if (TARGET_BIG_END
&& !(GET_MODE_SIZE (from) == 16 && GET_MODE_SIZE (to) == 8)
- && (GET_MODE_SIZE (from) > UNITS_PER_WORD
- || GET_MODE_SIZE (to) > UNITS_PER_WORD)
+ && (GET_MODE_UNIT_SIZE (from) > UNITS_PER_WORD
+ || GET_MODE_UNIT_SIZE (to) > UNITS_PER_WORD)
&& reg_classes_intersect_p (VFP_REGS, rclass))
return false;
return true;
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index cea62ecf5d2..c5acb695888 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,6 +1,11 @@
2018-07-05 Tamar Christina <tamar.christina@arm.com>
PR target/84711
+ * gcc.target/arm/big-endian-subreg.c: New.
+
+2018-07-05 Tamar Christina <tamar.christina@arm.com>
+
+ PR target/84711
* gcc.dg/vect/pr84711.c: New.
2018-07-05 Tamar Christina <tamar.christina@arm.com>
diff --git a/gcc/testsuite/gcc.target/arm/big-endian-subreg.c b/gcc/testsuite/gcc.target/arm/big-endian-subreg.c
new file mode 100644
index 00000000000..4b1ab122f34
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/big-endian-subreg.c
@@ -0,0 +1,13 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target arm_neon_ok } */
+/* { dg-require-effective-target arm_hf_eabi } */
+/* { dg-add-options arm_neon } */
+/* { dg-additional-options "-mfp16-format=ieee -mfloat-abi=hard" } */
+
+typedef __fp16 v4f16
+ __attribute__ ((vector_size (8)));
+
+v4f16 fn1 (v4f16 p)
+{
+ return p;
+}