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| author | Silviu Baranga <silviu.baranga@arm.com> | 2013-10-21 10:54:53 +0000 |
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| committer | Silviu Baranga <silviu.baranga@arm.com> | 2013-10-21 10:54:53 +0000 |
| commit | 1db2e279114348d276e2dea03b8d6175743505e7 (patch) | |
| tree | f5fc36d32a413595639afde503f5d73f5ebdc28e /docs/UsersManual.rst | |
| parent | fb90266d8bb5a977de45d07e702277f4cb54d74e (diff) | |
| download | clang-1db2e279114348d276e2dea03b8d6175743505e7.tar.gz clang-1db2e279114348d276e2dea03b8d6175743505e7.tar.bz2 clang-1db2e279114348d276e2dea03b8d6175743505e7.tar.xz | |
Add the __ARM_ARCH_EXT_IDIV__ predefine. It is set to 1 if we have hardware divide in the mode that we are compiling in (depending on the target features), not defined if we don't. Should be compatible with the GCC conterpart. Also adding a -hwdiv option to overide the default behavior.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193074 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'docs/UsersManual.rst')
| -rw-r--r-- | docs/UsersManual.rst | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/docs/UsersManual.rst b/docs/UsersManual.rst index 50908ad1cb..68fd0283ad 100644 --- a/docs/UsersManual.rst +++ b/docs/UsersManual.rst @@ -1047,6 +1047,17 @@ are listed below. efficient model can be used. The TLS model can be overridden per variable using the ``tls_model`` attribute. +.. option:: -mhwdiv=[values] + + Select the ARM modes (arm or thumb) that support hardware division + instructions. + + Valid values are: ``arm``, ``thumb`` and ``arm,thumb``. + This option is used to indicate which mode (arm or thumb) supports + hardware division instructions. This only applies to the ARM + architecture. + + Controlling Size of Debug Information ------------------------------------- |