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| author | Andreas Schwab <schwab@linux-m68k.org> | 2014-07-17 08:40:15 +0000 |
|---|---|---|
| committer | Andreas Schwab <schwab@gcc.gnu.org> | 2014-07-17 08:40:15 +0000 |
| commit | 4b1d78b48a8b83b6016f7570c2aa49eb2f13143d (patch) | |
| tree | a2204c3cb7ba518a1e3520081612e359fafd92bd /gcc | |
| parent | cfe309a158dcd4ab2c2839c2f2a4e413300fa75a (diff) | |
| download | gcc-4b1d78b48a8b83b6016f7570c2aa49eb2f13143d.zip gcc-4b1d78b48a8b83b6016f7570c2aa49eb2f13143d.tar.gz gcc-4b1d78b48a8b83b6016f7570c2aa49eb2f13143d.tar.bz2 | |
Summary: Generate canonical infinity for the Motorola extended real format
* real.c (encode_ieee_extended_motorola): Clear integer bit in the
infinity format.
From-SVN: r212744
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/real.c | 5 |
2 files changed, 10 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index ee335f2..c1b2a28 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2014-07-17 Andreas Schwab <schwab@linux-m68k.org> + + * real.c (encode_ieee_extended_motorola): Clear integer bit in the + infinity format. + 2014-07-17 Richard Biener <rguenther@suse.de> PR rtl-optimization/61801 @@ -3481,6 +3481,11 @@ encode_ieee_extended_motorola (const struct real_format *fmt, long *buf, long intermed[3]; encode_ieee_extended (fmt, intermed, r); + if (r->cl == rvc_inf) + /* For infinity clear the explicit integer bit again, so that the + format matches the canonical infinity generated by the FPU. */ + intermed[1] = 0; + /* Motorola chips are assumed always to be big-endian. Also, the padding in a Motorola extended real goes between the exponent and the mantissa. At this point the mantissa is entirely within |