mirror of
https://github.com/archlinuxarm/PKGBUILDs.git
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85 lines
2.7 KiB
Diff
85 lines
2.7 KiB
Diff
From 7286da3d2d19806e8a1273558fb08e094bb7ffe7 Mon Sep 17 00:00:00 2001
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From: ktkachov <ktkachov@138bc75d-0d04-0410-961f-82ee72b054a4>
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Date: Thu, 19 May 2016 13:43:58 +0000
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Subject: [PATCH 2/2] PR target/71056: Don't use vectorized builtins when NEON
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is not available
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PR target/71056
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* config/arm/arm-builtins.c (arm_builtin_vectorized_function): Return
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NULL_TREE early if NEON is not available. Remove now redundant check
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in ARM_CHECK_BUILTIN_MODE.
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* gcc.target/arm/pr71056.c: New test.
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@236459 138bc75d-0d04-0410-961f-82ee72b054a4
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---
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gcc/config/arm/arm-builtins.c | 6 +++++-
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gcc/testsuite/gcc.target/arm/pr71056.c | 32 ++++++++++++++++++++++++++++++++
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2 files changed, 37 insertions(+), 1 deletion(-)
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create mode 100644 gcc/testsuite/gcc.target/arm/pr71056.c
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diff --git a/gcc/config/arm/arm-builtins.c b/gcc/config/arm/arm-builtins.c
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index 90fb40f..68b2839 100644
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--- a/gcc/config/arm/arm-builtins.c
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+++ b/gcc/config/arm/arm-builtins.c
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@@ -2861,6 +2861,10 @@ arm_builtin_vectorized_function (unsigned int fn, tree type_out, tree type_in)
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int in_n, out_n;
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bool out_unsigned_p = TYPE_UNSIGNED (type_out);
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+ /* Can't provide any vectorized builtins when we can't use NEON. */
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+ if (!TARGET_NEON)
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+ return NULL_TREE;
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+
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if (TREE_CODE (type_out) != VECTOR_TYPE
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|| TREE_CODE (type_in) != VECTOR_TYPE)
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return NULL_TREE;
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@@ -2875,7 +2879,7 @@ arm_builtin_vectorized_function (unsigned int fn, tree type_out, tree type_in)
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NULL_TREE is returned if no such builtin is available. */
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#undef ARM_CHECK_BUILTIN_MODE
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#define ARM_CHECK_BUILTIN_MODE(C) \
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- (TARGET_NEON && TARGET_FPU_ARMV8 \
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+ (TARGET_FPU_ARMV8 \
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&& flag_unsafe_math_optimizations \
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&& ARM_CHECK_BUILTIN_MODE_1 (C))
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diff --git a/gcc/testsuite/gcc.target/arm/pr71056.c b/gcc/testsuite/gcc.target/arm/pr71056.c
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new file mode 100644
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index 0000000..136754e
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--- /dev/null
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+++ b/gcc/testsuite/gcc.target/arm/pr71056.c
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@@ -0,0 +1,32 @@
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+/* PR target/71056. */
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+/* { dg-do compile } */
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+/* { dg-require-effective-target arm_vfp3_ok } */
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+/* { dg-options "-O3 -mfpu=vfpv3" } */
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+
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+/* Check that compiling for a non-NEON target doesn't try to introduce
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+ a NEON vectorized builtin. */
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+
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+extern char *buff;
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+int f2 ();
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+struct T1
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+{
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+ int reserved[2];
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+ unsigned int ip;
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+ unsigned short cs;
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+ unsigned short rsrv2;
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+};
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+void
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+f3 (const char *p)
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+{
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+ struct T1 x;
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+ __builtin_memcpy (&x, p, sizeof (struct T1));
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+ x.reserved[0] = __builtin_bswap32 (x.reserved[0]);
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+ x.reserved[1] = __builtin_bswap32 (x.reserved[1]);
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+ x.ip = __builtin_bswap32 (x.ip);
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+ x.cs = x.cs << 8 | x.cs >> 8;
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+ x.rsrv2 = x.rsrv2 << 8 | x.rsrv2 >> 8;
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+ if (f2 ())
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+ {
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+ __builtin_memcpy (buff, "\n", 1);
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+ }
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+}
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--
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2.7.2
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