commit 39263ac5d1339292628201e0b2745a6980208655
author Lewis Revill <lewis.revill@embecosm.com> Wed Jun 19 08:40:59 2019 +0000
committer Lewis Revill <lewis.revill@embecosm.com> Wed Jun 19 08:40:59 2019 +0000
tree 1889efafb83bc76e7b009bd844788ff8067ae97d
parent 73a28f06432890797883f47227f1322851149237

[RISCV] Add lowering of global TLS addresses

This patch adds lowering for global TLS addresses for the TLS models of
InitialExec, GlobalDynamic, LocalExec and LocalDynamic.

LocalExec support required using a 4-operand add instruction, which uses
the fourth operand to express a relocation on the symbol. The necessary
fixup is emitted when the instruction is emitted.

Differential Revision: https://reviews.llvm.org/D55305

llvm-svn: 363771

llvm/lib/Target/RISCV/RISCVMCInstLower.cpp

diff --git a/llvm/lib/Target/RISCV/RISCVMCInstLower.cpp b/llvm/lib/Target/RISCV/RISCVMCInstLower.cpp
index b40eaa9..b1dbcfa 100644
--- a/llvm/lib/Target/RISCV/RISCVMCInstLower.cpp
+++ b/llvm/lib/Target/RISCV/RISCVMCInstLower.cpp
@@ -57,6 +57,21 @@
   case RISCVII::MO_GOT_HI:
     Kind = RISCVMCExpr::VK_RISCV_GOT_HI;
     break;
+  case RISCVII::MO_TPREL_LO:
+    Kind = RISCVMCExpr::VK_RISCV_TPREL_LO;
+    break;
+  case RISCVII::MO_TPREL_HI:
+    Kind = RISCVMCExpr::VK_RISCV_TPREL_HI;
+    break;
+  case RISCVII::MO_TPREL_ADD:
+    Kind = RISCVMCExpr::VK_RISCV_TPREL_ADD;
+    break;
+  case RISCVII::MO_TLS_GOT_HI:
+    Kind = RISCVMCExpr::VK_RISCV_TLS_GOT_HI;
+    break;
+  case RISCVII::MO_TLS_GD_HI:
+    Kind = RISCVMCExpr::VK_RISCV_TLS_GD_HI;
+    break;
   }
 
   const MCExpr *ME =