From: Christophe Lyon <christophe.lyon@linaro.org>
Date: Wed, 13 Nov 2024 15:28:29 +0000 (+0000)
Subject: arm: [MVE intrinsics] add modes for tuples
X-Git-Tag: basepoints/gcc-16~3311
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1e52a6a2d44cfa81f80a14360db0687275512ec7;p=thirdparty%2Fgcc.git

arm: [MVE intrinsics] add modes for tuples

Add V2x and V4x modes, like we do on aarch64 for Advanced SIMD
q-registers.

gcc/ChangeLog:

	* config/arm/arm-modes.def (MVE_STRUCT_MODES): New.
---

diff --git a/gcc/config/arm/arm-modes.def b/gcc/config/arm/arm-modes.def
index 4d592ad3cfb6..4774dfbcd4be 100644
--- a/gcc/config/arm/arm-modes.def
+++ b/gcc/config/arm/arm-modes.def
@@ -105,3 +105,25 @@ INT_MODE (EI, 24);
 INT_MODE (OI, 32);
 INT_MODE (CI, 48);
 INT_MODE (XI, 64);
+
+/* Define MVE modes for structures of 2 and 4 q-registers.  */
+#define MVE_STRUCT_MODES(NVECS, VB, VH, VS, VD)		\
+  VECTOR_MODES_WITH_PREFIX (V##NVECS##x, INT, 16, 3);	\
+  VECTOR_MODES_WITH_PREFIX (V##NVECS##x, FLOAT, 16, 3);	\
+  \
+  ADJUST_NUNITS (VB##QI, NVECS * 16);	\
+  ADJUST_NUNITS (VH##HI, NVECS * 8);	\
+  ADJUST_NUNITS (VS##SI, NVECS * 4);	\
+  ADJUST_NUNITS (VD##DI, NVECS * 2);	\
+  ADJUST_NUNITS (VH##HF, NVECS * 8);	\
+  ADJUST_NUNITS (VS##SF, NVECS * 4);	\
+  \
+  ADJUST_ALIGNMENT (VB##QI, 16); \
+  ADJUST_ALIGNMENT (VH##HI, 16); \
+  ADJUST_ALIGNMENT (VS##SI, 16); \
+  ADJUST_ALIGNMENT (VD##DI, 16); \
+  ADJUST_ALIGNMENT (VH##HF, 16); \
+  ADJUST_ALIGNMENT (VS##SF, 16);
+
+MVE_STRUCT_MODES (2, V2x16, V2x8, V2x4, V2x2)
+MVE_STRUCT_MODES (4, V4x16, V4x8, V4x4, V4x2)