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author | H.J. Lu <hjl@gcc.gnu.org> | 2019-01-23 13:41:59 -0800 |
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committer | H.J. Lu <hjl@gcc.gnu.org> | 2019-01-23 13:41:59 -0800 |
commit | 6395ba73f84930d5ebcf692a3bd570da600f9da9 (patch) | |
tree | 3e2db0c016b1c095fc8dab9c2987a3bc4ddf68ce /libgcc | |
parent | 8c5b33788da402bdc1e3a14288e2dd8c8bd709e9 (diff) | |
download | gcc-6395ba73f84930d5ebcf692a3bd570da600f9da9.zip gcc-6395ba73f84930d5ebcf692a3bd570da600f9da9.tar.gz gcc-6395ba73f84930d5ebcf692a3bd570da600f9da9.tar.bz2 |
libgcc2.c: Correct DI/TI -> SF/DF conversions
FSTYPE FUNC (DWtype u) in libgcc2.c, which converts DI/TI to SF/DF, has
/* No leading bits means u == minimum. */
if (count == 0)
return -(Wtype_MAXp1_F * (Wtype_MAXp1_F / 2));
in the third case (where actually count == 0 only means the high part is
minimum). It should be:
/* No leading bits means u == minimum. */
if (count == 0)
return Wtype_MAXp1_F * (FSTYPE) (hi | ((UWtype) u != 0));
instead.
gcc/testsuite/
2019-01-23 H.J. Lu <hongjiu.lu@intel.com>
PR libgcc/88931
* gcc.dg/torture/fp-int-convert-timode-1.c: New test.
* gcc.dg/torture/fp-int-convert-timode-2.c: Likewise.
* gcc.dg/torture/fp-int-convert-timode-3.c: Likewise.
* gcc.dg/torture/fp-int-convert-timode-4.c: Likewise.
libgcc/
2019-01-23 Joseph Myers <joseph@codesourcery.com>
PR libgcc/88931
* libgcc2.c (FSTYPE FUNC (DWtype u)): Correct no leading bits
case.
From-SVN: r268216
Diffstat (limited to 'libgcc')
-rw-r--r-- | libgcc/ChangeLog | 6 | ||||
-rw-r--r-- | libgcc/libgcc2.c | 2 |
2 files changed, 7 insertions, 1 deletions
diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog index 9d157c2..8f6f9ca8 100644 --- a/libgcc/ChangeLog +++ b/libgcc/ChangeLog @@ -1,3 +1,9 @@ +2019-01-23 Joseph Myers <joseph@codesourcery.com> + + PR libgcc/88931 + * libgcc2.c (FSTYPE FUNC (DWtype u)): Correct no leading bits + case. + 2019-01-18 Martin Liska <mliska@suse.cz> * libgcov-profiler.c (__gcov_indirect_call_profiler_v2): Rename diff --git a/libgcc/libgcc2.c b/libgcc/libgcc2.c index d84f25b..04d3185 100644 --- a/libgcc/libgcc2.c +++ b/libgcc/libgcc2.c @@ -1684,7 +1684,7 @@ FUNC (DWtype u) /* No leading bits means u == minimum. */ if (count == 0) - return -(Wtype_MAXp1_F * (Wtype_MAXp1_F / 2)); + return Wtype_MAXp1_F * (FSTYPE) (hi | ((UWtype) u != 0)); shift = 1 + W_TYPE_SIZE - count; |