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authorDale Johannesen <dalej@apple.com>2008-09-25 20:47:45 +0000
committerDale Johannesen <dalej@apple.com>2008-09-25 20:47:45 +0000
commitc50ada2f5678d8745b115d9a5de51309094845f0 (patch)
tree666bcf7623da63d6001f0bb59643f4a3b30409ef /llvm/docs/LangRef.html
parent15146a56e1a1d7cd661c4a557e167627ec695696 (diff)
downloadbcm5719-llvm-c50ada2f5678d8745b115d9a5de51309094845f0.tar.gz
bcm5719-llvm-c50ada2f5678d8745b115d9a5de51309094845f0.zip
Accept 'inreg' attribute on x86 functions as
meaning sse_regparm (i.e. float/double values go in XMM0 instead of ST0). Update documentation to reflect reality. llvm-svn: 56619
Diffstat (limited to 'llvm/docs/LangRef.html')
-rw-r--r--llvm/docs/LangRef.html8
1 files changed, 5 insertions, 3 deletions
diff --git a/llvm/docs/LangRef.html b/llvm/docs/LangRef.html
index 25ac4cbde1b..8987af254f0 100644
--- a/llvm/docs/LangRef.html
+++ b/llvm/docs/LangRef.html
@@ -845,9 +845,11 @@ declare i32 @atoi(i8*) nounwind readonly
a call to this function.</dd>
<dt><tt>inreg</tt></dt>
- <dd>This indicates that the parameter should be placed in register (if
- possible) during assembling function call. Support for this attribute is
- target-specific</dd>
+ <dd>This indicates that this parameter or return value should be treated
+ in a special target-dependent fashion during while emitting code for a
+ function call or return (usually, by putting it in a register as opposed
+ to memory; in some places it is used to distinguish between two different
+ kinds of registers). Use of this attribute is target-specific</dd>
<dt><tt>byval</tt></dt>
<dd>This indicates that the pointer parameter should really be passed by
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