commit 1e3a8ea7fbaed4cd6638b08fb18b951a9c02f889
Author: Julian Brown <jbrown@build6-lucid-cs.sje.mentorg.com>
Date:   Fri Jul 13 07:13:09 2012 -0700

    Optimize NEON vdup builtins.

diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
index 9748dda..7eedb18 100644
--- a/gcc/config/arm/arm.c
+++ b/gcc/config/arm/arm.c
@@ -7608,6 +7608,17 @@ arm_rtx_costs_1 (rtx x, enum rtx_code outer, int* total, bool speed)
 	}
       return true;
 
+    case CONST_VECTOR:
+      if (TARGET_NEON
+	  && TARGET_HARD_FLOAT
+	  && outer == SET
+	  && (VALID_NEON_DREG_MODE (mode) || VALID_NEON_QREG_MODE (mode))
+	  && neon_immediate_valid_for_move (x, mode, NULL, NULL))
+	*total = COSTS_N_INSNS (1);
+      else
+	*total = COSTS_N_INSNS (4);
+      return true;
+
     default:
       *total = COSTS_N_INSNS (4);
       return false;
@@ -7948,6 +7959,17 @@ arm_size_rtx_costs (rtx x, enum rtx_code code, enum rtx_code outer_code,
       *total = COSTS_N_INSNS (4);
       return true;
 
+    case CONST_VECTOR:
+      if (TARGET_NEON
+	  && TARGET_HARD_FLOAT
+	  && outer_code == SET
+	  && (VALID_NEON_DREG_MODE (mode) || VALID_NEON_QREG_MODE (mode))
+	  && neon_immediate_valid_for_move (x, mode, NULL, NULL))
+	*total = COSTS_N_INSNS (1);
+      else
+	*total = COSTS_N_INSNS (4);
+      return true;
+
     case HIGH:
     case LO_SUM:
       /* We prefer constant pool entries to MOVW/MOVT pairs, so bump the
@@ -8768,11 +8790,14 @@ vfp3_const_double_rtx (rtx x)
    vmov  i64    17    aaaaaaaa bbbbbbbb cccccccc dddddddd
                       eeeeeeee ffffffff gggggggg hhhhhhhh
    vmov  f32    18    aBbbbbbc defgh000 00000000 00000000
+   vmov  f32    19    00000000 00000000 00000000 00000000
 
    For case 18, B = !b. Representable values are exactly those accepted by
    vfp3_const_double_index, but are output as floating-point numbers rather
    than indices.
 
+   For case 19, we will change it to vmov.i32 when assembling.
+
    Variants 0-5 (inclusive) may also be used as immediates for the second
    operand of VORR/VBIC instructions.
 
@@ -8829,7 +8854,7 @@ neon_valid_immediate (rtx op, enum machine_mode mode, int inverse,
       rtx el0 = CONST_VECTOR_ELT (op, 0);
       REAL_VALUE_TYPE r0;
 
-      if (!vfp3_const_double_rtx (el0))
+      if (!vfp3_const_double_rtx (el0) && el0 != CONST0_RTX (GET_MODE (el0)))
         return -1;
 
       REAL_VALUE_FROM_CONST_DOUBLE (r0, el0);
@@ -8851,7 +8876,10 @@ neon_valid_immediate (rtx op, enum machine_mode mode, int inverse,
       if (elementwidth)
         *elementwidth = 0;
 
-      return 18;
+      if (el0 == CONST0_RTX (GET_MODE (el0)))
+	return 19;
+      else
+	return 18;
     }
 
   /* Splat vector constant out into a byte vector.  */
diff --git a/gcc/testsuite/gcc.target/arm/neon-combine-sub-abs-into-vabd.c b/gcc/testsuite/gcc.target/arm/neon-combine-sub-abs-into-vabd.c
index ad6ba75..fe3d78b 100644
--- a/gcc/testsuite/gcc.target/arm/neon-combine-sub-abs-into-vabd.c
+++ b/gcc/testsuite/gcc.target/arm/neon-combine-sub-abs-into-vabd.c
@@ -4,10 +4,8 @@
 /* { dg-add-options arm_neon } */
 
 #include <arm_neon.h>
-float32x2_t f_sub_abs_to_vabd_32()
+float32x2_t f_sub_abs_to_vabd_32(float32x2_t val1, float32x2_t val2)
 {
-  float32x2_t val1 = vdup_n_f32 (10);
-  float32x2_t val2 = vdup_n_f32 (30);
   float32x2_t sres = vsub_f32(val1, val2);
   float32x2_t res = vabs_f32 (sres);
 
@@ -16,10 +14,8 @@ float32x2_t f_sub_abs_to_vabd_32()
 /* { dg-final { scan-assembler "vabd\.f32" } }*/
 
 #include <arm_neon.h>
-int8x8_t sub_abs_to_vabd_8()
+int8x8_t sub_abs_to_vabd_8(int8x8_t val1, int8x8_t val2)
 {
-  int8x8_t val1 = vdup_n_s8 (10);
-  int8x8_t val2 = vdup_n_s8 (30);
   int8x8_t sres = vsub_s8(val1, val2);
   int8x8_t res = vabs_s8 (sres);
 
@@ -27,10 +23,8 @@ int8x8_t sub_abs_to_vabd_8()
 }
 /* { dg-final { scan-assembler "vabd\.s8" } }*/
 
-int16x4_t sub_abs_to_vabd_16()
+int16x4_t sub_abs_to_vabd_16(int16x4_t val1, int16x4_t val2)
 {
-  int16x4_t val1 = vdup_n_s16 (10);
-  int16x4_t val2 = vdup_n_s16 (30);
   int16x4_t sres = vsub_s16(val1, val2);
   int16x4_t res = vabs_s16 (sres);
 
@@ -38,10 +32,8 @@ int16x4_t sub_abs_to_vabd_16()
 }
 /* { dg-final { scan-assembler "vabd\.s16" } }*/
 
-int32x2_t sub_abs_to_vabd_32()
+int32x2_t sub_abs_to_vabd_32(int32x2_t val1, int32x2_t val2)
 {
-  int32x2_t val1 = vdup_n_s32 (10);
-  int32x2_t val2 = vdup_n_s32 (30);
   int32x2_t sres = vsub_s32(val1, val2);
   int32x2_t res = vabs_s32 (sres);
 
diff --git a/gcc/testsuite/gcc.target/arm/neon-vdup-1.c b/gcc/testsuite/gcc.target/arm/neon-vdup-1.c
new file mode 100644
index 0000000..41799a2
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/neon-vdup-1.c
@@ -0,0 +1,17 @@
+/* Test the optimization of `vdupq_n_f32' ARM Neon intrinsic.  */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target arm_neon_ok } */
+/* { dg-options "-O2" } */
+/* { dg-add-options arm_neon } */
+
+#include <arm_neon.h>
+
+float32x4_t out_float32x4_t;
+void test_vdupq_nf32 (void)
+{
+  out_float32x4_t = vdupq_n_f32 (0.0);
+}
+
+/* { dg-final { scan-assembler "vmov\.f32\[ 	\]+\[qQ\]\[0-9\]+, #0\.0\(\[ \]+@\[a-zA-Z0-9 \]+\)?\n" } } */
+/* { dg-final { cleanup-saved-temps } } */
diff --git a/gcc/testsuite/gcc.target/arm/neon-vdup-10.c b/gcc/testsuite/gcc.target/arm/neon-vdup-10.c
new file mode 100644
index 0000000..a06b064
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/neon-vdup-10.c
@@ -0,0 +1,17 @@
+/* Test the optimization of `vdupq_n_u32' ARM Neon intrinsic.  */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target arm_neon_ok } */
+/* { dg-options "-O2" } */
+/* { dg-add-options arm_neon } */
+
+#include <arm_neon.h>
+
+uint32x4_t out_uint32x4_t;
+void test_vdupq_nu32 (void)
+{
+  out_uint32x4_t = vdupq_n_u32 (~0x12000000);
+}
+
+/* { dg-final { scan-assembler "vmov\.i32\[ 	\]+\[qQ\]\[0-9\]+, #3992977407\(\[ \]+@\[a-zA-Z0-9 \]+\)?\n" } } */
+/* { dg-final { cleanup-saved-temps } } */
diff --git a/gcc/testsuite/gcc.target/arm/neon-vdup-11.c b/gcc/testsuite/gcc.target/arm/neon-vdup-11.c
new file mode 100644
index 0000000..07d0889
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/neon-vdup-11.c
@@ -0,0 +1,17 @@
+/* Test the optimization of `vdupq_n_u16' ARM Neon intrinsic.  */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target arm_neon_ok } */
+/* { dg-options "-O2" } */
+/* { dg-add-options arm_neon } */
+
+#include <arm_neon.h>
+
+uint16x8_t out_uint16x8_t;
+void test_vdupq_nu16 (void)
+{
+  out_uint16x8_t = vdupq_n_u16 (0x12);
+}
+
+/* { dg-final { scan-assembler "vmov\.i16\[ 	\]+\[qQ\]\[0-9\]+, #18\(\[ \]+@\[a-zA-Z0-9 \]+\)?\n" } } */
+/* { dg-final { cleanup-saved-temps } } */
diff --git a/gcc/testsuite/gcc.target/arm/neon-vdup-12.c b/gcc/testsuite/gcc.target/arm/neon-vdup-12.c
new file mode 100644
index 0000000..27b4186
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/neon-vdup-12.c
@@ -0,0 +1,17 @@
+/* Test the optimization of `vdupq_n_u16' ARM Neon intrinsic.  */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target arm_neon_ok } */
+/* { dg-options "-O2" } */
+/* { dg-add-options arm_neon } */
+
+#include <arm_neon.h>
+
+uint16x8_t out_uint16x8_t;
+void test_vdupq_nu16 (void)
+{
+  out_uint16x8_t = vdupq_n_u16 (0x1200);
+}
+
+/* { dg-final { scan-assembler "vmov\.i16\[ 	\]+\[qQ\]\[0-9\]+, #4608\(\[ \]+@\[a-zA-Z0-9 \]+\)?\n" } } */
+/* { dg-final { cleanup-saved-temps } } */
diff --git a/gcc/testsuite/gcc.target/arm/neon-vdup-13.c b/gcc/testsuite/gcc.target/arm/neon-vdup-13.c
new file mode 100644
index 0000000..4d38bc0
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/neon-vdup-13.c
@@ -0,0 +1,17 @@
+/* Test the optimization of `vdupq_n_u16' ARM Neon intrinsic.  */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target arm_neon_ok } */
+/* { dg-options "-O2" } */
+/* { dg-add-options arm_neon } */
+
+#include <arm_neon.h>
+
+uint16x8_t out_uint16x8_t;
+void test_vdupq_nu16 (void)
+{
+  out_uint16x8_t = vdupq_n_u16 (~0x12);
+}
+
+/* { dg-final { scan-assembler "vmov\.i16\[ 	\]+\[qQ\]\[0-9\]+, #65517\(\[ \]+@\[a-zA-Z0-9 \]+\)?\n" } } */
+/* { dg-final { cleanup-saved-temps } } */
diff --git a/gcc/testsuite/gcc.target/arm/neon-vdup-14.c b/gcc/testsuite/gcc.target/arm/neon-vdup-14.c
new file mode 100644
index 0000000..a16659f
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/neon-vdup-14.c
@@ -0,0 +1,17 @@
+/* Test the optimization of `vdupq_n_u16' ARM Neon intrinsic.  */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target arm_neon_ok } */
+/* { dg-options "-O2" } */
+/* { dg-add-options arm_neon } */
+
+#include <arm_neon.h>
+
+uint16x8_t out_uint16x8_t;
+void test_vdupq_nu16 (void)
+{
+  out_uint16x8_t = vdupq_n_u16 (~0x1200);
+}
+
+/* { dg-final { scan-assembler "vmov\.i16\[ 	\]+\[qQ\]\[0-9\]+, #60927\(\[ \]+@\[a-zA-Z0-9 \]+\)?\n" } } */
+/* { dg-final { cleanup-saved-temps } } */
diff --git a/gcc/testsuite/gcc.target/arm/neon-vdup-15.c b/gcc/testsuite/gcc.target/arm/neon-vdup-15.c
new file mode 100644
index 0000000..84a6fe0
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/neon-vdup-15.c
@@ -0,0 +1,17 @@
+/* Test the optimization of `vdupq_n_u8' ARM Neon intrinsic.  */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target arm_neon_ok } */
+/* { dg-options "-O2" } */
+/* { dg-add-options arm_neon } */
+
+#include <arm_neon.h>
+
+uint8x16_t out_uint8x16_t;
+void test_vdupq_nu8 (void)
+{
+  out_uint8x16_t = vdupq_n_u8 (0x12);
+}
+
+/* { dg-final { scan-assembler "vmov\.i8\[ 	\]+\[qQ\]\[0-9\]+, #18\(\[ \]+@\[a-zA-Z0-9 \]+\)?\n" } } */
+/* { dg-final { cleanup-saved-temps } } */
diff --git a/gcc/testsuite/gcc.target/arm/neon-vdup-16.c b/gcc/testsuite/gcc.target/arm/neon-vdup-16.c
new file mode 100644
index 0000000..70bec03
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/neon-vdup-16.c
@@ -0,0 +1,17 @@
+/* Test the optimization of `vdupq_n_u32' ARM Neon intrinsic.  */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target arm_neon_ok } */
+/* { dg-options "-O2" } */
+/* { dg-add-options arm_neon } */
+
+#include <arm_neon.h>
+
+uint32x4_t out_uint32x4_t;
+void test_vdupq_nu32 (void)
+{
+  out_uint32x4_t = vdupq_n_u32 (0x12ff);
+}
+
+/* { dg-final { scan-assembler "vmov\.i32\[ 	\]+\[qQ\]\[0-9\]+, #4863\(\[ \]+@\[a-zA-Z0-9 \]+\)?\n" } } */
+/* { dg-final { cleanup-saved-temps } } */
diff --git a/gcc/testsuite/gcc.target/arm/neon-vdup-17.c b/gcc/testsuite/gcc.target/arm/neon-vdup-17.c
new file mode 100644
index 0000000..e0283f1
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/neon-vdup-17.c
@@ -0,0 +1,17 @@
+/* Test the optimization of `vdupq_n_u32' ARM Neon intrinsic.  */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target arm_neon_ok } */
+/* { dg-options "-O2" } */
+/* { dg-add-options arm_neon } */
+
+#include <arm_neon.h>
+
+uint32x4_t out_uint32x4_t;
+void test_vdupq_nu32 (void)
+{
+  out_uint32x4_t = vdupq_n_u32 (0x12ffff);
+}
+
+/* { dg-final { scan-assembler "vmov\.i32\[ 	\]+\[qQ\]\[0-9\]+, #1245183\(\[ \]+@\[a-zA-Z0-9 \]+\)?\n" } } */
+/* { dg-final { cleanup-saved-temps } } */
diff --git a/gcc/testsuite/gcc.target/arm/neon-vdup-18.c b/gcc/testsuite/gcc.target/arm/neon-vdup-18.c
new file mode 100644
index 0000000..7dcf85d
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/neon-vdup-18.c
@@ -0,0 +1,17 @@
+/* Test the optimization of `vdupq_n_u32' ARM Neon intrinsic.  */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target arm_neon_ok } */
+/* { dg-options "-O2" } */
+/* { dg-add-options arm_neon } */
+
+#include <arm_neon.h>
+
+uint32x4_t out_uint32x4_t;
+void test_vdupq_nu32 (void)
+{
+  out_uint32x4_t = vdupq_n_u32 (~0x12ff);
+}
+
+/* { dg-final { scan-assembler "vmov\.i32\[ 	\]+\[qQ\]\[0-9\]+, #4294962432\(\[ \]+@\[a-zA-Z0-9 \]+\)?\n" } } */
+/* { dg-final { cleanup-saved-temps } } */
diff --git a/gcc/testsuite/gcc.target/arm/neon-vdup-19.c b/gcc/testsuite/gcc.target/arm/neon-vdup-19.c
new file mode 100644
index 0000000..0980437
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/neon-vdup-19.c
@@ -0,0 +1,17 @@
+/* Test the optimization of `vdupq_n_u32' ARM Neon intrinsic.  */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target arm_neon_ok } */
+/* { dg-options "-O2" } */
+/* { dg-add-options arm_neon } */
+
+#include <arm_neon.h>
+
+uint32x4_t out_uint32x4_t;
+void test_vdupq_nu32 (void)
+{
+  out_uint32x4_t = vdupq_n_u32 (~0x12ffff);
+}
+
+/* { dg-final { scan-assembler "vmov\.i32\[ 	\]+\[qQ\]\[0-9\]+, #4293722112\(\[ \]+@\[a-zA-Z0-9 \]+\)?\n" } } */
+/* { dg-final { cleanup-saved-temps } } */
diff --git a/gcc/testsuite/gcc.target/arm/neon-vdup-2.c b/gcc/testsuite/gcc.target/arm/neon-vdup-2.c
new file mode 100644
index 0000000..f9e6a72
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/neon-vdup-2.c
@@ -0,0 +1,17 @@
+/* Test the optimization of `vdupq_n_f32' ARM Neon intrinsic.  */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target arm_neon_ok } */
+/* { dg-options "-O2" } */
+/* { dg-add-options arm_neon } */
+
+#include <arm_neon.h>
+
+float32x4_t out_float32x4_t;
+void test_vdupq_nf32 (void)
+{
+  out_float32x4_t = vdupq_n_f32 (0.125);
+}
+
+/* { dg-final { scan-assembler "vmov\.f32\[ 	\]+\[qQ\]\[0-9\]+, #1\.25e-1\(\[ \]+@\[a-zA-Z0-9 \]+\)?\n" } } */
+/* { dg-final { cleanup-saved-temps } } */
diff --git a/gcc/testsuite/gcc.target/arm/neon-vdup-3.c b/gcc/testsuite/gcc.target/arm/neon-vdup-3.c
new file mode 100644
index 0000000..d407316
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/neon-vdup-3.c
@@ -0,0 +1,17 @@
+/* Test the optimization of `vdupq_n_u32' ARM Neon intrinsic.  */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target arm_neon_ok } */
+/* { dg-options "-O2" } */
+/* { dg-add-options arm_neon } */
+
+#include <arm_neon.h>
+
+uint32x4_t out_uint32x4_t;
+void test_vdupq_nu32 (void)
+{
+  out_uint32x4_t = vdupq_n_u32 (0x12);
+}
+
+/* { dg-final { scan-assembler "vmov\.i32\[ 	\]+\[qQ\]\[0-9\]+, #18\(\[ \]+@\[a-zA-Z0-9 \]+\)?\n" } } */
+/* { dg-final { cleanup-saved-temps } } */
diff --git a/gcc/testsuite/gcc.target/arm/neon-vdup-4.c b/gcc/testsuite/gcc.target/arm/neon-vdup-4.c
new file mode 100644
index 0000000..bc1be07
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/neon-vdup-4.c
@@ -0,0 +1,17 @@
+/* Test the optimization of `vdupq_n_u32' ARM Neon intrinsic.  */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target arm_neon_ok } */
+/* { dg-options "-O2" } */
+/* { dg-add-options arm_neon } */
+
+#include <arm_neon.h>
+
+uint32x4_t out_uint32x4_t;
+void test_vdupq_nu32 (void)
+{
+  out_uint32x4_t = vdupq_n_u32 (0x1200);
+}
+
+/* { dg-final { scan-assembler "vmov\.i32\[ 	\]+\[qQ\]\[0-9\]+, #4608\(\[ \]+@\[a-zA-Z0-9 \]+\)?\n" } } */
+/* { dg-final { cleanup-saved-temps } } */
diff --git a/gcc/testsuite/gcc.target/arm/neon-vdup-5.c b/gcc/testsuite/gcc.target/arm/neon-vdup-5.c
new file mode 100644
index 0000000..9b04f16
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/neon-vdup-5.c
@@ -0,0 +1,17 @@
+/* Test the optimization of `vdupq_n_u32' ARM Neon intrinsic.  */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target arm_neon_ok } */
+/* { dg-options "-O2" } */
+/* { dg-add-options arm_neon } */
+
+#include <arm_neon.h>
+
+uint32x4_t out_uint32x4_t;
+void test_vdupq_nu32 (void)
+{
+  out_uint32x4_t = vdupq_n_u32 (0x120000);
+}
+
+/* { dg-final { scan-assembler "vmov\.i32\[ 	\]+\[qQ\]\[0-9\]+, #1179648\(\[ \]+@\[a-zA-Z0-9 \]+\)?\n" } } */
+/* { dg-final { cleanup-saved-temps } } */
diff --git a/gcc/testsuite/gcc.target/arm/neon-vdup-6.c b/gcc/testsuite/gcc.target/arm/neon-vdup-6.c
new file mode 100644
index 0000000..0889b80
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/neon-vdup-6.c
@@ -0,0 +1,17 @@
+/* Test the optimization of `vdupq_n_u32' ARM Neon intrinsic.  */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target arm_neon_ok } */
+/* { dg-options "-O2" } */
+/* { dg-add-options arm_neon } */
+
+#include <arm_neon.h>
+
+uint32x4_t out_uint32x4_t;
+void test_vdupq_nu32 (void)
+{
+  out_uint32x4_t = vdupq_n_u32 (0x12000000);
+}
+
+/* { dg-final { scan-assembler "vmov\.i32\[ 	\]+\[qQ\]\[0-9\]+, #301989888\(\[ \]+@\[a-zA-Z0-9 \]+\)?\n" } } */
+/* { dg-final { cleanup-saved-temps } } */
diff --git a/gcc/testsuite/gcc.target/arm/neon-vdup-7.c b/gcc/testsuite/gcc.target/arm/neon-vdup-7.c
new file mode 100644
index 0000000..f7b1dc8
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/neon-vdup-7.c
@@ -0,0 +1,17 @@
+/* Test the optimization of `vdupq_n_u32' ARM Neon intrinsic.  */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target arm_neon_ok } */
+/* { dg-options "-O2" } */
+/* { dg-add-options arm_neon } */
+
+#include <arm_neon.h>
+
+uint32x4_t out_uint32x4_t;
+void test_vdupq_nu32 (void)
+{
+  out_uint32x4_t = vdupq_n_u32 (~0x12);
+}
+
+/* { dg-final { scan-assembler "vmov\.i32\[ 	\]+\[qQ\]\[0-9\]+, #4294967277\(\[ \]+@\[a-zA-Z0-9 \]+\)?\n" } } */
+/* { dg-final { cleanup-saved-temps } } */
diff --git a/gcc/testsuite/gcc.target/arm/neon-vdup-8.c b/gcc/testsuite/gcc.target/arm/neon-vdup-8.c
new file mode 100644
index 0000000..9d494c3
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/neon-vdup-8.c
@@ -0,0 +1,17 @@
+/* Test the optimization of `vdupq_n_u32' ARM Neon intrinsic.  */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target arm_neon_ok } */
+/* { dg-options "-O2" } */
+/* { dg-add-options arm_neon } */
+
+#include <arm_neon.h>
+
+uint32x4_t out_uint32x4_t;
+void test_vdupq_nu32 (void)
+{
+  out_uint32x4_t = vdupq_n_u32 (~0x1200);
+}
+
+/* { dg-final { scan-assembler "vmov\.i32\[ 	\]+\[qQ\]\[0-9\]+, #4294962687\(\[ \]+@\[a-zA-Z0-9 \]+\)?\n" } } */
+/* { dg-final { cleanup-saved-temps } } */
diff --git a/gcc/testsuite/gcc.target/arm/neon-vdup-9.c b/gcc/testsuite/gcc.target/arm/neon-vdup-9.c
new file mode 100644
index 0000000..799e95e
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/neon-vdup-9.c
@@ -0,0 +1,17 @@
+/* Test the optimization of `vdupq_n_u32' ARM Neon intrinsic.  */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target arm_neon_ok } */
+/* { dg-options "-O2" } */
+/* { dg-add-options arm_neon } */
+
+#include <arm_neon.h>
+
+uint32x4_t out_uint32x4_t;
+void test_vdupq_nu32 (void)
+{
+  out_uint32x4_t = vdupq_n_u32 (~0x120000);
+}
+
+/* { dg-final { scan-assembler "vmov\.i32\[ 	\]+\[qQ\]\[0-9\]+, #4293787647\(\[ \]+@\[a-zA-Z0-9 \]+\)?\n" } } */
+/* { dg-final { cleanup-saved-temps } } */
