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| author | Michael Meissner <meissner@linux.ibm.com> | 2018-06-18 19:10:08 +0000 |
|---|---|---|
| committer | Michael Meissner <meissner@gcc.gnu.org> | 2018-06-18 19:10:08 +0000 |
| commit | 6a8886e45f7eb6684f4e27b9d823ea3d02df787c (patch) | |
| tree | 8005da91b739ec8d9e6b89e3b0a29707aff9b968 /libgcc/ChangeLog | |
| parent | b0874c667d1bcc7e414f130dd4ec3973d388dbfb (diff) | |
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re PR target/85358 (PowerPC: Using -mabi=ieeelongdouble -mcpu=power9 breaks __ibm128)
[gcc]
2018-06-18 Michael Meissner <meissner@linux.ibm.com>
PR target/85358
* config/rs6000/rs6000-modes.def (toplevel): Rework the 128-bit
floating point modes, so that IFmode is numerically greater than
TFmode, which is greater than KFmode using FRACTIONAL_FLOAT_MODE
to declare the ordering. This prevents IFmode from being
converted to TFmode when long double is IEEE 128-bit on an ISA 3.0
machine. Include rs6000-modes.h to share the fractional values
between genmodes* and the rest of the compiler.
(IFmode): Likewise.
(KFmode): Likewise.
(TFmode): Likewise.
* config/rs6000/rs6000-modes.h: New file.
* config/rs6000/rs6000.c (rs6000_debug_reg_global): Change the
meaning of rs6000_long_double_size so that 126..128 selects an
appropriate 128-bit floating point type.
(rs6000_option_override_internal): Likewise.
* config/rs6000/rs6000.h (toplevel): Include rs6000-modes.h.
(TARGET_LONG_DOUBLE_128): Change the meaning of
rs6000_long_double_size so that 126..128 selects an appropriate
128-bit floating point type.
(LONG_DOUBLE_TYPE_SIZE): Update comment.
* config/rs6000/rs6000.md (trunciftf2): Correct the modes of the
source and destination to match the standard usage.
(truncifkf2): Likewise.
(copysign<mode>3, IEEE iterator): Rework copysign of float128 on
ISA 2.07 to use an explicit clobber, instead of passing in a
temporary.
(copysign<mode>3_soft): Likewise.
[libgcc]
2018-06-18 Michael Meissner <meissner@linux.ibm.com>
* config/rs6000/t-float128 (FP128_CFLAGS_SW): Compile float128
support modules with -mno-gnu-attribute.
* config/rs6000/t-float128-hw (FP128_CFLAGS_HW): Likewise.
From-SVN: r261712
Diffstat (limited to 'libgcc/ChangeLog')
| -rw-r--r-- | libgcc/ChangeLog | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog index fc24d8e..65efe17 100644 --- a/libgcc/ChangeLog +++ b/libgcc/ChangeLog @@ -1,3 +1,9 @@ +2018-06-18 Michael Meissner <meissner@linux.ibm.com> + + * config/rs6000/t-float128 (FP128_CFLAGS_SW): Compile float128 + support modules with -mno-gnu-attribute. + * config/rs6000/t-float128-hw (FP128_CFLAGS_HW): Likewise. + 2018-06-07 Olivier Hainque <hainque@adacore.com> * config/t-vxworks (LIBGCC_INCLUDES): Add |