Create a documentation category for the new calling convention documentation. Drive-by fixing of duplicate target names from a previous commit.
llvm-svn: 220419
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@ -673,8 +673,17 @@ The semantics are as follows:
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}];
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}
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def DocCatCallingConvs : DocumentationCategory<"Calling Conventions"> {
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let Content = [{
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Clang supports several different calling conventions, depending on the target
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platform and architecture. The calling convention used for a function determines
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how parameters are passed, how results are returned to the caller, and other
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low-level details of calling a function.
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}];
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}
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def PcsDocs : Documentation {
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let Category = DocCatFunction;
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let Category = DocCatCallingConvs;
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let Content = [{
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On ARM targets, this attribute can be used to select calling conventions
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similar to ``stdcall`` on x86. Valid parameter values are "aapcs" and
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@ -683,7 +692,7 @@ similar to ``stdcall`` on x86. Valid parameter values are "aapcs" and
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}
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def RegparmDocs : Documentation {
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let Category = DocCatFunction;
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let Category = DocCatCallingConvs;
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let Content = [{
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On 32-bit x86 targets, the regparm attribute causes the compiler to pass
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the first three integer parameters in EAX, EDX, and ECX instead of on the
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@ -693,7 +702,7 @@ are passed via the stack as normal.
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}
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def SysVABIDocs : Documentation {
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let Category = DocCatFunction;
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let Category = DocCatCallingConvs;
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let Content = [{
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On Windows x86_64 targets, this attribute changes the calling convention of a
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function to match the default convention used on Sys V targets such as Linux,
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@ -702,7 +711,7 @@ Mac, and BSD. This attribute has no effect on other targets.
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}
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def MSABIDocs : Documentation {
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let Category = DocCatFunction;
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let Category = DocCatCallingConvs;
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let Content = [{
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On non-Windows x86_64 targets, this attribute changes the calling convention of
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a function to match the default convention used on Windows x86_64. This
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@ -711,21 +720,21 @@ attribute has no effect on Windows targets or non-x86_64 targets.
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}
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def StdCallDocs : Documentation {
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let Category = DocCatFunction;
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let Category = DocCatCallingConvs;
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let Content = [{
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On 32-bit x86 targets, this attribute changes the calling convention of a
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function to clear parameters off of the stack on return. This convention does
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not support variadic calls or unprototyped functions in C, and has no effect on
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x86_64 targets. This calling convention is used widely by the Windows API and
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COM applications. Documentation for the Visual C++ attribute is available on
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MSDN_.
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MSDN1_.
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.. _MSDN: http://msdn.microsoft.com/en-us/library/zxk0tw93.aspx
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.. _MSDN1: http://msdn.microsoft.com/en-us/library/zxk0tw93.aspx
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}];
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}
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def FastCallDocs : Documentation {
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let Category = DocCatFunction;
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let Category = DocCatCallingConvs;
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let Content = [{
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On 32-bit x86 targets, this attribute changes the calling convention of a
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function to use ECX and EDX as register parameters and clear parameters off of
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@ -734,23 +743,23 @@ unprototyped functions in C, and has no effect on x86_64 targets. This calling
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convention is supported primarily for compatibility with existing code. Users
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seeking register parameters should use the ``regparm`` attribute, which does
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not require callee-cleanup. Documentation for the Visual C++ attribute is
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available on MSDN_.
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available on MSDN2_.
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.. _MSDN: http://msdn.microsoft.com/en-us/library/6xa169sk.aspx
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.. _MSDN2: http://msdn.microsoft.com/en-us/library/6xa169sk.aspx
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}];
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}
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def ThisCallDocs : Documentation {
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let Category = DocCatFunction;
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let Category = DocCatCallingConvs;
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let Content = [{
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On 32-bit x86 targets, this attribute changes the calling convention of a
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function to use ECX for the first parameter (typically the implicit ``this``
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parameter of C++ methods) and clear parameters off of the stack on return. This
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convention does not support variadic calls or unprototyped functions in C, and
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has no effect on x86_64 targets. Documentation for the Visual C++ attribute is
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available on MSDN_.
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available on MSDN3_.
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.. _MSDN: http://msdn.microsoft.com/en-us/library/ek8tkfbw.aspx
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.. _MSDN3: http://msdn.microsoft.com/en-us/library/ek8tkfbw.aspx
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}];
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}
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