[llvm] r328656 - AMDGPU: Set natural stack alignment in DataLayout

Matt Arsenault via llvm-commits llvm-commits at lists.llvm.org
Tue Mar 27 12:26:40 PDT 2018


Author: arsenm
Date: Tue Mar 27 12:26:40 2018
New Revision: 328656

URL: http://llvm.org/viewvc/llvm-project?rev=328656&view=rev
Log:
AMDGPU: Set natural stack alignment in DataLayout

Only 4 byte alignment is ever useful, so increasing anything
beyond this may require realigning the stack.

Modified:
    llvm/trunk/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp

Modified: llvm/trunk/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp?rev=328656&r1=328655&r2=328656&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp (original)
+++ llvm/trunk/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp Tue Mar 27 12:26:40 2018
@@ -261,14 +261,14 @@ static StringRef computeDataLayout(const
   if (TT.getArch() == Triple::r600) {
     // 32-bit pointers.
       return "e-p:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128"
-             "-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-A5";
+             "-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-S32-A5";
   }
 
   // 32-bit private, local, and region pointers. 64-bit global, constant and
   // flat.
     return "e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32"
          "-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128"
-         "-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-A5";
+         "-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-S32-A5";
 }
 
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