From: Matt Arsenault <Matthew.Arsenault@amd.com>
Date: Tue, 27 Mar 2018 23:26:59 +0000 (+0000)
Subject: AMDGPU: Really implement getFrameRegister
X-Git-Tag: llvmorg-7.0.0-rc1~9499
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=bd49eccca1d731b6b7e421d69611090cd7ad8a2b;p=platform%2Fupstream%2Fllvm.git

AMDGPU: Really implement getFrameRegister

Currently this seems to only really be used for debug
info.

llvm-svn: 328677
---

diff --git a/llvm/lib/Target/AMDGPU/AMDGPURegisterInfo.cpp b/llvm/lib/Target/AMDGPU/AMDGPURegisterInfo.cpp
index 376be7d..242b97b 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPURegisterInfo.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPURegisterInfo.cpp
@@ -82,5 +82,6 @@ const uint32_t *SIRegisterInfo::getCallPreservedMask(const MachineFunction &MF,
 }
 
 unsigned SIRegisterInfo::getFrameRegister(const MachineFunction &MF) const {
-  return AMDGPU::NoRegister;
+  const SIMachineFunctionInfo *FuncInfo = MF.getInfo<SIMachineFunctionInfo>();
+  return FuncInfo->getFrameOffsetReg();
 }
diff --git a/llvm/test/DebugInfo/AMDGPU/variable-locations.ll b/llvm/test/DebugInfo/AMDGPU/variable-locations.ll
index 692769b..66885f2 100644
--- a/llvm/test/DebugInfo/AMDGPU/variable-locations.ll
+++ b/llvm/test/DebugInfo/AMDGPU/variable-locations.ll
@@ -31,6 +31,9 @@ declare void @llvm.dbg.declare(metadata, metadata, metadata)
 ; CHECK-NEXT: DW_AT_location [DW_FORM_block1] (DW_OP_addr 0x0)
 @GlobB = common addrspace(1) global i32 0, align 4, !dbg !6
 
+; CHECK: {{.*}}DW_TAG_subprogram
+; CHECK: DW_AT_frame_base [DW_FORM_block1]	(DW_OP_reg9 SGPR9)
+
 define amdgpu_kernel void @kernel1(
 ; CHECK: {{.*}}DW_TAG_formal_parameter
 ; CHECK-NEXT: DW_AT_location [DW_FORM_block1] (DW_OP_fbreg +4, DW_OP_constu 0x1, DW_OP_swap, DW_OP_xderef)