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| author | Chris Lattner <sabre@nondot.org> | 2004-07-22 05:49:38 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2004-07-22 05:49:38 +0000 |
| commit | 609111020ff8c4685f9201ac1d93ee737f8fd0f5 (patch) | |
| tree | 9c63d25c42674d00646f34687be92121fec0977f /llvm/docs/GarbageCollection.html | |
| parent | 7324574660cf8760acc64a8177bf24572f1ddd29 (diff) | |
| download | bcm5719-llvm-609111020ff8c4685f9201ac1d93ee737f8fd0f5.tar.gz bcm5719-llvm-609111020ff8c4685f9201ac1d93ee737f8fd0f5.zip | |
Update documentation for gc intrinsics change. Contributed by
Tobias Nurmiranta
llvm-svn: 15095
Diffstat (limited to 'llvm/docs/GarbageCollection.html')
| -rw-r--r-- | llvm/docs/GarbageCollection.html | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/llvm/docs/GarbageCollection.html b/llvm/docs/GarbageCollection.html index 744279bdf31..8747e93079d 100644 --- a/llvm/docs/GarbageCollection.html +++ b/llvm/docs/GarbageCollection.html @@ -234,8 +234,8 @@ zeroed-out block of memory of the appropriate size.</p> <div class="doc_text"> <div class="doc_code"><tt> - sbyte *%llvm.gcread(sbyte **)<br> - void %llvm.gcwrite(sbyte*, sbyte**) + sbyte *%llvm.gcread(sbyte *, sbyte **)<br> + void %llvm.gcwrite(sbyte*, sbyte*, sbyte**) </tt></div> <p>Several of the more interesting garbage collectors (e.g., generational @@ -250,7 +250,9 @@ tolerable.</p> <p>To support garbage collectors that use read or write barriers, LLVM provides the <tt>llvm.gcread</tt> and <tt>llvm.gcwrite</tt> intrinsics. The first intrinsic has exactly the same semantics as a non-volatile LLVM load and the -second has the same semantics as a non-volatile LLVM store. At code generation +second has the same semantics as a non-volatile LLVM store, with the +additions that they also take a pointer to the start of the memory +object as an argument. At code generation time, these intrinsics are replaced with calls into the garbage collector (<tt><a href="#llvm_gc_readwrite">llvm_gc_read</a></tt> and <tt><a href="#llvm_gc_readwrite">llvm_gc_write</a></tt> respectively), which are then @@ -341,8 +343,8 @@ implementations</a> available. <div class="doc_text"> <div class="doc_code"><tt> - void *llvm_gc_read(void **)<br> - void llvm_gc_write(void*, void**) + void *llvm_gc_read(void*, void **)<br> + void llvm_gc_write(void*, void *, void**) </tt></div> <p> @@ -353,8 +355,7 @@ pointer, then return. <p> If an actual read or write barrier is needed, it should be straight-forward to -implement it. Note that we may add a pointer to the start of the memory object -as a parameter in the future, if needed. +implement it. </p> </div> |
