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| author | bernds <bernds@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-07-12 10:38:45 +0000 |
|---|---|---|
| committer | bernds <bernds@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-07-12 10:38:45 +0000 |
| commit | 88a2642532a9c391d71c86b3842acf09b6f6c2c6 (patch) | |
| tree | 76db931bacde75fdd72ea59e5348e49db551f380 /gcc/doc | |
| parent | 6ac5504b880a3ab0799b38230a367d4ce46dc031 (diff) | |
| download | gcc-88a2642532a9c391d71c86b3842acf09b6f6c2c6.tar.gz | |
* doc/extend.texi (Blackfin Built-in Functions): New section.
* doc/invoke.texi (mcsync-anomaly, mno-csync-anomaly): Fix the
@opindex.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@101919 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/extend.texi | 15 | ||||
| -rw-r--r-- | gcc/doc/invoke.texi | 4 |
2 files changed, 17 insertions, 2 deletions
diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi index b019d388219..cc6ea2de053 100644 --- a/gcc/doc/extend.texi +++ b/gcc/doc/extend.texi @@ -5766,6 +5766,7 @@ instructions, but allow the compiler to schedule those calls. @menu * Alpha Built-in Functions:: * ARM Built-in Functions:: +* Blackfin Built-in Functions:: * FR-V Built-in Functions:: * X86 Built-in Functions:: * MIPS Paired-Single Support:: @@ -6002,6 +6003,20 @@ long long __builtin_arm_wxor (long long, long long) long long __builtin_arm_wzero () @end smallexample +@node Blackfin Built-in Functions +@subsection Blackfin Built-in Functions + +Currently, there are two Blackfin-specific built-in functions. These are +used for generating @code{CSYNC} and @code{SSYNC} machine insns without +using inline assembly; by using these built-in functions the compiler can +automatically add workarounds for hardware errata involving these +instructions. These functions are named as follows: + +@smallexample +void __builtin_bfin_csync (void) +void __builtin_bfin_ssync (void) +@end smallexample + @node FR-V Built-in Functions @subsection FR-V Built-in Functions diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 8fa98600472..0f509d0ce7b 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -7415,13 +7415,13 @@ by default. Don't generate extra code to prevent speculative loads from occurring. @item -mcsync-anomaly -@opindex mspecld-anomaly +@opindex mcsync-anomaly When enabled, the compiler will ensure that the generated code does not contain CSYNC or SSYNC instructions too soon after conditional branches. This option is enabled by default. @item -mno-csync-anomaly -@opindex mno-specld-anomaly +@opindex mno-csync-anomaly Don't generate extra code to prevent CSYNC or SSYNC instructions from occurring too soon after a conditional branch. |