Hi,
This patch fixes an ICE we were seeing due to a missing vec_duplicate
pattern.
Regression tested on arm-none-eabi.
Is this OK for trunk?
gcc/ChangeLog:
2020-04-15 Andre Vieira <andre.simoesdiasvie...@arm.com>
* config/arm/mve.md (mve_vec_duplicate<mode>): New pattern.
(V_sz_elem2): Remove unused mode attribute.
gcc/testsuite/ChangeLog:
2020-04-15 Andre Vieira <andre.simoesdiasvie...@arm.com>
Srinath Parvathaneni <srinath.parvathan...@arm.com>
* gcc.target/arm/mve/intrinsics/mve_vec_duplicate.c: New test.
diff --git a/gcc/config/arm/mve.md b/gcc/config/arm/mve.md
index
c49c14c4240838ce086f424f58726e2e94cf190e..047b4769a28daebdc0175804c578a0d11830a291
100644
--- a/gcc/config/arm/mve.md
+++ b/gcc/config/arm/mve.md
@@ -17,8 +17,6 @@
;; along with GCC; see the file COPYING3. If not see
;; <http://www.gnu.org/licenses/>.
-(define_mode_attr V_sz_elem2 [(V16QI "s8") (V8HI "u16") (V4SI "u32")
- (V2DI "u64")])
(define_mode_iterator MVE_types [V16QI V8HI V4SI V2DI TI V8HF V4SF V2DF])
(define_mode_iterator MVE_VLD_ST [V16QI V8HI V4SI V8HF V4SF])
(define_mode_iterator MVE_0 [V8HF V4SF])
@@ -11301,3 +11299,10 @@ (define_insn "mve_vshlcq_m_<supf><mode>"
"vpst\;vshlct\t%q0, %1, %4"
[(set_attr "type" "mve_move")
(set_attr "length" "8")])
+
+(define_insn "*mve_vec_duplicate<mode>"
+ [(set (match_operand:MVE_VLD_ST 0 "s_register_operand" "=w")
+ (vec_duplicate:MVE_VLD_ST (match_operand:<V_elem> 1 "general_operand"
"r")))]
+ "TARGET_HAVE_MVE || TARGET_HAVE_MVE_FLOAT"
+ "vdup.<V_sz_elem>\t%q0, %1"
+ [(set_attr "type" "mve_move")])
diff --git a/gcc/testsuite/gcc.target/arm/mve/intrinsics/mve_vec_duplicate.c
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/mve_vec_duplicate.c
new file mode 100644
index
0000000000000000000000000000000000000000..eda836151b3a16eb54ddebabf185be3cd8980acc
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/mve_vec_duplicate.c
@@ -0,0 +1,13 @@
+/* { dg-require-effective-target arm_v8_1m_mve_fp_ok } */
+/* { dg-add-options arm_v8_1m_mve_fp } */
+/* { dg-additional-options "-O2" } */
+
+#include "arm_mve.h"
+
+float32x4_t a;
+
+void foo (void)
+{
+ a = 1.41176471f - 0.47058824f * a;
+}
+
