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| author | Ian Lance Taylor <iant@golang.org> | 2018-01-09 01:23:08 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@gcc.gnu.org> | 2018-01-09 01:23:08 +0000 |
| commit | 1a2f01efa63036a5104f203a4789e682c0e0915d (patch) | |
| tree | 373e15778dc8295354584e1f86915ae493b604ff /libgo/go/math/bits.go | |
| parent | 8799df67f2dab88f9fda11739c501780a85575e2 (diff) | |
| download | gcc-1a2f01efa63036a5104f203a4789e682c0e0915d.zip gcc-1a2f01efa63036a5104f203a4789e682c0e0915d.tar.gz gcc-1a2f01efa63036a5104f203a4789e682c0e0915d.tar.bz2 | |
libgo: update to Go1.10beta1
Update the Go library to the 1.10beta1 release.
Requires a few changes to the compiler for modifications to the map
runtime code, and to handle some nowritebarrier cases in the runtime.
Reviewed-on: https://go-review.googlesource.com/86455
gotools/:
* Makefile.am (go_cmd_vet_files): New variable.
(go_cmd_buildid_files, go_cmd_test2json_files): New variables.
(s-zdefaultcc): Change from constants to functions.
(noinst_PROGRAMS): Add vet, buildid, and test2json.
(cgo$(EXEEXT)): Link against $(LIBGOTOOL).
(vet$(EXEEXT)): New target.
(buildid$(EXEEXT)): New target.
(test2json$(EXEEXT)): New target.
(install-exec-local): Install all $(noinst_PROGRAMS).
(uninstall-local): Uninstasll all $(noinst_PROGRAMS).
(check-go-tool): Depend on $(noinst_PROGRAMS). Copy down
objabi.go.
(check-runtime): Depend on $(noinst_PROGRAMS).
(check-cgo-test, check-carchive-test): Likewise.
(check-vet): New target.
(check): Depend on check-vet. Look at cmd_vet-testlog.
(.PHONY): Add check-vet.
* Makefile.in: Rebuild.
From-SVN: r256365
Diffstat (limited to 'libgo/go/math/bits.go')
| -rw-r--r-- | libgo/go/math/bits.go | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libgo/go/math/bits.go b/libgo/go/math/bits.go index d85ee9c..77bcdbe 100644 --- a/libgo/go/math/bits.go +++ b/libgo/go/math/bits.go @@ -8,9 +8,12 @@ const ( uvnan = 0x7FF8000000000001 uvinf = 0x7FF0000000000000 uvneginf = 0xFFF0000000000000 + uvone = 0x3FF0000000000000 mask = 0x7FF shift = 64 - 11 - 1 bias = 1023 + signMask = 1 << 63 + fracMask = 1<<shift - 1 ) // Inf returns positive infinity if sign >= 0, negative infinity if sign < 0. |