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| author | Rob Findley <rfindley@google.com> | 2020-09-11 14:23:34 -0400 |
|---|---|---|
| committer | Rob Findley <rfindley@google.com> | 2020-09-11 14:23:34 -0400 |
| commit | f8b1c17aced24a1618c6984794be9770c5d260be (patch) | |
| tree | 45af8d39b5c3d9f43d439ebec0a2ba42b49efe70 /doc/asm.html | |
| parent | e5d91ab096a9ff9673311f1a7f3f860a7f9c2062 (diff) | |
| parent | 07c1788357cfe6a4ee5f6f6a54d4fe9f579fa844 (diff) | |
| download | go-git-dev.types.tar.gz | |
[dev.types] all: merge master into dev.typesdev.types
Change-Id: Ia6964cb4e09153c15cc9c5b441373d1b3cb8f757
Diffstat (limited to 'doc/asm.html')
| -rw-r--r-- | doc/asm.html | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/doc/asm.html b/doc/asm.html index dbbe8f2cd1..cc8598aeff 100644 --- a/doc/asm.html +++ b/doc/asm.html @@ -687,6 +687,13 @@ MOVQ g(CX), AX // Move g into AX. MOVQ g_m(AX), BX // Move g.m into BX. </pre> +<p> +Register <code>BP</code> is callee-save. +The assembler automatically inserts <code>BP</code> save/restore when frame size is larger than zero. +Using <code>BP</code> as a general purpose register is allowed, +however it can interfere with sampling-based profiling. +</p> + <h3 id="arm">ARM</h3> <p> |