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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
commitc08a0e2f7ceaaaef071ba0aa2482a8fd7a6e27a3 (patch)
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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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56619 91177308-0d34-0410-b5e6-96231b3b80d8
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1 files changed, 5 insertions, 3 deletions
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@@ -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