Add natvis visualizers for endian types.

This allows ulittle* and ubig* types to be visualized properly
in VS.

Differential Revision: http://reviews.llvm.org/D19339
Reviewed By: Aaron Ballman

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@267050 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Zachary Turner 2016-04-21 20:58:41 +00:00
parent ec474295eb
commit 6efffd31d2

View File

@ -168,4 +168,45 @@ For later versions of Visual Studio, no setup is required.
<Item Name="[underlying]" Condition="hasVal">*(($T1 *)(unsigned char *)storage.buffer)</Item>
</Expand>
</Type>
<!-- Since we're in MSVC, we can assume that the system is little endian. Therefore
the little and native cases just require a cast. Handle this easy case first. Use
a wildcard for the second template argument (the endianness), but we will use a
specific value of 0 later on for the big endian to give it priority for being a
better match. -->
<Type Name="llvm::support::detail::packed_endian_specific_integral&lt;*,*,1&gt;">
<DisplayString>{{little endian value = {*(($T1*)(unsigned char *)Value.buffer)} }}</DisplayString>
<Expand>
<Item Name="[Raw Bytes]" Condition="sizeof($T1)==1">(unsigned char *)Value.buffer,1</Item>
<Item Name="[Raw Bytes]" Condition="sizeof($T1)==2">(unsigned char *)Value.buffer,2</Item>
<Item Name="[Raw Bytes]" Condition="sizeof($T1)==4">(unsigned char *)Value.buffer,4</Item>
<Item Name="[Raw Bytes]" Condition="sizeof($T1)==8">(unsigned char *)Value.buffer,8</Item>
</Expand>
</Type>
<!-- Now handle the hard case of big endian. We need to do the swizzling here, but
we need to specialize it based on the size of the value type. -->
<Type Name="llvm::support::detail::packed_endian_specific_integral&lt;*,0,1&gt;">
<DisplayString Condition="sizeof($T1)==1">{{ big endian value = {*(unsigned char *)Value.buffer} }}</DisplayString>
<DisplayString Condition="sizeof($T1)==2">{{ big endian value = {(($T1)(*(unsigned char *)Value.buffer) &lt;&lt; 8)
| ($T1)(*((unsigned char *)Value.buffer+1))} }}</DisplayString>
<DisplayString Condition="sizeof($T1)==4">{{ big endian value = {(($T1)(*(unsigned char *)Value.buffer) &lt;&lt; 24)
| (($T1)(*((unsigned char *)Value.buffer+1)) &lt;&lt; 16)
| (($T1)(*((unsigned char *)Value.buffer+2)) &lt;&lt; 8)
| ($T1)(*((unsigned char *)Value.buffer+3))} }}</DisplayString>
<DisplayString Condition="sizeof($T1)==8">{{ big endian value = {(($T1)(*(unsigned char *)Value.buffer) &lt;&lt; 56)
| (($T1)(*((unsigned char *)Value.buffer+1)) &lt;&lt; 48)
| (($T1)(*((unsigned char *)Value.buffer+2)) &lt;&lt; 40)
| (($T1)(*((unsigned char *)Value.buffer+3)) &lt;&lt; 32)
| (($T1)(*((unsigned char *)Value.buffer+4)) &lt;&lt; 24)
| (($T1)(*((unsigned char *)Value.buffer+5)) &lt;&lt; 16)
| (($T1)(*((unsigned char *)Value.buffer+6)) &lt;&lt; 8)
| ($T1)(*((unsigned char *)Value.buffer+7))} }}</DisplayString>
<Expand>
<Item Name="[Raw Bytes]" Condition="sizeof($T1)==1">(unsigned char *)Value.buffer,1</Item>
<Item Name="[Raw Bytes]" Condition="sizeof($T1)==2">(unsigned char *)Value.buffer,2</Item>
<Item Name="[Raw Bytes]" Condition="sizeof($T1)==4">(unsigned char *)Value.buffer,4</Item>
<Item Name="[Raw Bytes]" Condition="sizeof($T1)==8">(unsigned char *)Value.buffer,8</Item>
</Expand>
</Type>
</AutoVisualizer>