[PATCH] D113008: [NVPTX] Mark special registers as reserved

[Andrew Savonichev via Phabricator via llvm-commits]

This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rG123ad720f183: [NVPTX] Mark special registers as reserved (authored by asavonic).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D113008/new/

https://reviews.llvm.org/D113008

Files:
  llvm/lib/Target/NVPTX/NVPTXRegisterInfo.cpp
  llvm/test/CodeGen/NVPTX/envreg.ll


Index: llvm/test/CodeGen/NVPTX/envreg.ll
===================================================================
--- llvm/test/CodeGen/NVPTX/envreg.ll
+++ llvm/test/CodeGen/NVPTX/envreg.ll
@@ -1,4 +1,4 @@
-; RUN: llc < %s -march=nvptx -mcpu=sm_20 | FileCheck %s
+; RUN: llc < %s -march=nvptx -mcpu=sm_20 -verify-machineinstrs | FileCheck %s
 
 
 declare i32 @llvm.nvvm.read.ptx.sreg.envreg0()
Index: llvm/lib/Target/NVPTX/NVPTXRegisterInfo.cpp
===================================================================
--- llvm/lib/Target/NVPTX/NVPTXRegisterInfo.cpp
+++ llvm/lib/Target/NVPTX/NVPTXRegisterInfo.cpp
@@ -107,6 +107,14 @@
 
 BitVector NVPTXRegisterInfo::getReservedRegs(const MachineFunction &MF) const {
   BitVector Reserved(getNumRegs());
+  for (unsigned Reg = NVPTX::ENVREG0; Reg <= NVPTX::ENVREG31; ++Reg) {
+    markSuperRegs(Reserved, Reg);
+  }
+  markSuperRegs(Reserved, NVPTX::VRFrame32);
+  markSuperRegs(Reserved, NVPTX::VRFrameLocal32);
+  markSuperRegs(Reserved, NVPTX::VRFrame64);
+  markSuperRegs(Reserved, NVPTX::VRFrameLocal64);
+  markSuperRegs(Reserved, NVPTX::VRDepot);
   return Reserved;
 }
 


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