[PATCH] D44896: AMDGPU: Set natural stack alignment in DataLayout

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
arsenm added reviewers: rampitec, kzhuravl, yaxunl.
Herald added subscribers: t-tye, tpr, dstuttard, nhaehnle, wdng.

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


https://reviews.llvm.org/D44896

Files:
  lib/Target/AMDGPU/AMDGPUTargetMachine.cpp


Index: lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
===================================================================
--- lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
+++ lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
@@ -261,14 +261,14 @@
   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";
 }
 
 LLVM_READNONE


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