* [PATCH, fortran, arm] Fix PR 78314 on arm and aarch64
@ 2019-07-22 16:16 Steve Ellcey
0 siblings, 0 replies; only message in thread
From: Steve Ellcey @ 2019-07-22 16:16 UTC (permalink / raw)
To: gcc-patches; +Cc: ubizjak, Wilco.Dijkstra, clyon
This patch fixes PR libfortran/78314, the failure of
gfortran.dg/ieee/ieee_6.f90 on some Arm and Aarch64 platforms.
As mentioned in the PR trapping fpu exceptions is optional
on ARM and this function cannot do a runtime check for support
so we should return 0.
There are a couple of discussion strings about this issue,
pointers to them are in the PR. This patch has already been
suggested by a couple of people (Uros and Christophe) but
never been checked in. Can we go ahead and check it in?
Tested on Aarch64 (ThunderX) with no regressions.
Steve Ellcey
sellcey@marvell.com
2019-07-22 Steve Ellcey <sellcey@marvell.com>
PR libfortran/78314
* config/fpu-glibc.h (support_fpu_trap): Return 0 for Arm/Aarch64.
diff --git a/libgfortran/config/fpu-glibc.h b/libgfortran/config/fpu-glibc.h
index df2588e..692091c 100644
--- a/libgfortran/config/fpu-glibc.h
+++ b/libgfortran/config/fpu-glibc.h
@@ -129,7 +129,11 @@ get_fpu_trap_exceptions (void)
int
support_fpu_trap (int flag)
{
+#if defined(__arm__) || defined(__aarch64__)
+ return 0;
+#else
return support_fpu_flag (flag);
+#endif
}
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2019-07-22 16:16 [PATCH, fortran, arm] Fix PR 78314 on arm and aarch64 Steve Ellcey
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