AMDGPU: Add a shader calling convention

This makes it possible to distinguish between mesa shaders
and other kernels even in the presence of compute shaders.

Patch By: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

Differential Revision: http://reviews.llvm.org/D18559

llvm-svn: 265589

1 files changed, 12 insertions, 0 deletions

diff --git a/llvm/include/llvm/IR/CallingConv.h b/llvm/include/llvm/IR/CallingConv.h
index 9797a163434..362a96811c1 100644
--- a/llvm/include/llvm/IR/CallingConv.h
+++ b/llvm/include/llvm/IR/CallingConv.h
@@ -178,6 +178,18 @@ namespace CallingConv {
     /// which have an "optimized" convention to preserve registers.
     AVR_BUILTIN = 86,
 
+    /// Calling convention used for Mesa vertex shaders.
+    AMDGPU_VS = 87,
+
+    /// Calling convention used for Mesa geometry shaders.
+    AMDGPU_GS = 88,
+
+    /// Calling convention used for Mesa pixel shaders.
+    AMDGPU_PS = 89,
+
+    /// Calling convention used for Mesa compute shaders.
+    AMDGPU_CS = 90,
+
     /// The highest possible calling convention ID. Must be some 2^k - 1.
     MaxID = 1023
   };