Hi,
I get a lot of "vect/*" and "neon-*" test failure in my armv5te testing
because the arm_neon_ok test incorrectly detects that NEON is valid on
arm926ej-s.
It turns out that the reason is that the compiler only disallows NEON
for Thumb1 or soft-float configurations. Otherwise it just takes
-mfpu=neon at face value, regardless of -march or -mcpu.
This patch limits NEON to armv7 or higher.
OK?
Andrew
2014-09-13 Andrew Stubbs <a...@codesourcery.com>
gcc/
* config/arm/arm.h (TARGET_NEON): Ensure target is v7 or higher.
Index: gcc/config/arm/arm.h
===================================================================
--- gcc/config/arm/arm.h (revision 215228)
+++ gcc/config/arm/arm.h (working copy)
@@ -323,6 +323,7 @@
and TARGET_HARD_FLOAT to ensure that NEON instructions are
available. */
#define TARGET_NEON (TARGET_32BIT && TARGET_HARD_FLOAT \
+ && arm_arch7 \
&& TARGET_VFP && arm_fpu_desc->neon)
/* Q-bit is present. */
