From b6b782b967c8b3cdd1bcb3f6a8aa5581be86ffd7 Mon Sep 17 00:00:00 2001
From: David Sherwood <david.sherwood@arm.com>
Date: Wed, 21 Jan 2015 17:53:55 +0000
Subject: [PATCH] aarch64.h (CANNOT_CHANGE_MODE_CLASS): Removed.
gcc/
2015-01-21 David Sherwood <david.sherwood@arm.com>
Tejas Belagod <Tejas.Belagod@arm.com>
* config/aarch64/aarch64.h (CANNOT_CHANGE_MODE_CLASS): Removed.
* config/aarch64/aarch64.c (aarch64_cannot_change_mode_class): Removed.
* config/aarch64/aarch64-protos.h (aarch64_cannot_change_mode_class):
Removed.
Co-Authored-By: Tejas Belagod <tejas.belagod@arm.com>
From-SVN: r219960
---
gcc/ChangeLog | 8 +++++
gcc/config/aarch64/aarch64-protos.h | 3 --
gcc/config/aarch64/aarch64.c | 48 -----------------------------
gcc/config/aarch64/aarch64.h | 3 --
4 files changed, 8 insertions(+), 54 deletions(-)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 2921413e6617..a08d231b72d3 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,11 @@
+2015-01-21 David Sherwood <david.sherwood@arm.com>
+ Tejas Belagod <Tejas.Belagod@arm.com>
+
+ * config/aarch64/aarch64.h (CANNOT_CHANGE_MODE_CLASS): Removed.
+ * config/aarch64/aarch64.c (aarch64_cannot_change_mode_class): Removed.
+ * config/aarch64/aarch64-protos.h (aarch64_cannot_change_mode_class):
+ Removed.
+
2015-01-21 David Sherwood <david.sherwood@arm.com>
Tejas Belagod <Tejas.Belagod@arm.com>
diff --git a/gcc/config/aarch64/aarch64-protos.h b/gcc/config/aarch64/aarch64-protos.h
index 0b3d03525e79..59c5824f894c 100644
--- a/gcc/config/aarch64/aarch64-protos.h
+++ b/gcc/config/aarch64/aarch64-protos.h
@@ -182,9 +182,6 @@ struct tune_params
HOST_WIDE_INT aarch64_initial_elimination_offset (unsigned, unsigned);
int aarch64_get_condition_code (rtx);
bool aarch64_bitmask_imm (HOST_WIDE_INT val, machine_mode);
-bool aarch64_cannot_change_mode_class (machine_mode,
- machine_mode,
- enum reg_class);
enum aarch64_symbol_type
aarch64_classify_symbolic_expression (rtx, enum aarch64_symbol_context);
bool aarch64_const_vec_all_same_int_p (rtx, HOST_WIDE_INT);
diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c
index e057c590c205..dd49fcd89d8a 100644
--- a/gcc/config/aarch64/aarch64.c
+++ b/gcc/config/aarch64/aarch64.c
@@ -10175,54 +10175,6 @@ aarch64_vectorize_vec_perm_const_ok (machine_mode vmode,
return ret;
}
-/* Implement target hook CANNOT_CHANGE_MODE_CLASS. */
-bool
-aarch64_cannot_change_mode_class (machine_mode from,
- machine_mode to,
- enum reg_class rclass)
-{
- /* Full-reg subregs are allowed on general regs or any class if they are
- the same size. */
- if (GET_MODE_SIZE (from) == GET_MODE_SIZE (to)
- || !reg_classes_intersect_p (FP_REGS, rclass))
- return false;
-
- /* Limited combinations of subregs are safe on FPREGs. Particularly,
- 1. Vector Mode to Scalar mode where 1 unit of the vector is accessed.
- 2. Scalar to Scalar for integer modes or same size float modes.
- 3. Vector to Vector modes.
- 4. On little-endian only, Vector-Structure to Vector modes. */
- if (GET_MODE_SIZE (from) > GET_MODE_SIZE (to))
- {
- if (aarch64_vector_mode_supported_p (from)
- && GET_MODE_SIZE (GET_MODE_INNER (from)) == GET_MODE_SIZE (to))
- return false;
-
- if (GET_MODE_NUNITS (from) == 1
- && GET_MODE_NUNITS (to) == 1
- && (GET_MODE_CLASS (from) == MODE_INT
- || from == to))
- return false;
-
- if (aarch64_vector_mode_supported_p (from)
- && aarch64_vector_mode_supported_p (to))
- return false;
-
- /* Within an vector structure straddling multiple vector registers
- we are in a mixed-endian representation. As such, we can't
- easily change modes for BYTES_BIG_ENDIAN. Otherwise, we can
- switch between vectors and vector structures cheaply. */
- if (!BYTES_BIG_ENDIAN)
- if ((aarch64_vector_mode_supported_p (from)
- && aarch64_vect_struct_mode_p (to))
- || (aarch64_vector_mode_supported_p (to)
- && aarch64_vect_struct_mode_p (from)))
- return false;
- }
-
- return true;
-}
-
rtx
aarch64_reverse_mask (enum machine_mode mode)
{
diff --git a/gcc/config/aarch64/aarch64.h b/gcc/config/aarch64/aarch64.h
index eed86f73f153..bf59e40a6445 100644
--- a/gcc/config/aarch64/aarch64.h
+++ b/gcc/config/aarch64/aarch64.h
@@ -879,9 +879,6 @@ do { \
extern void __aarch64_sync_cache_range (void *, void *); \
__aarch64_sync_cache_range (beg, end)
-#define CANNOT_CHANGE_MODE_CLASS(FROM, TO, CLASS) \
- aarch64_cannot_change_mode_class (FROM, TO, CLASS)
-
#define SHIFT_COUNT_TRUNCATED !TARGET_SIMD
/* Choose appropriate mode for caller saves, so we do the minimum
--
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