[m68k] Fix incorrect handling of TLS when matching addressing mode.

`TargetGlobalTLSAddress` is not considered and handled correctly when matching addressing mode, which leads to an incorrect result of instruction selection.

fixes #63162.

Reviewed By: myhsu

Differential Revision: https://reviews.llvm.org/D153103

Author: 0x59616e

llvm/lib/Target/M68k/M68kISelDAGToDAG.cpp

@@ -500,6 +500,13 @@ bool M68kDAGToDAGISel::matchAddressRecursively(SDValue N,
       return true;
     }
     break;
+
+  case ISD::TargetGlobalTLSAddress: {
+    GlobalAddressSDNode *GA = cast<GlobalAddressSDNode>(N);
+    AM.GV = GA->getGlobal();
+    AM.SymbolFlags = GA->getTargetFlags();
+    return true;
+  }
   }
 
   return matchAddressBase(N, AM);
@@ -724,6 +731,8 @@ bool M68kDAGToDAGISel::SelectARID(SDNode *Parent, SDValue N, SDValue &Disp,
     return false;
   }
 
+  Base = AM.BaseReg;
+
   if (getSymbolicDisplacement(AM, SDLoc(N), Disp)) {
     assert(!AM.Disp && "Should not be any displacement");
     LLVM_DEBUG(dbgs() << "SUCCESS, matched Symbol\n");
@@ -736,7 +745,6 @@ bool M68kDAGToDAGISel::SelectARID(SDNode *Parent, SDValue N, SDValue &Disp,
     return false;
   }
 
-  Base = AM.BaseReg;
   Disp = getI16Imm(AM.Disp, SDLoc(N));
 
   LLVM_DEBUG(dbgs() << "SUCCESS\n");

llvm/test/CodeGen/M68k/TLS/tlsgd.ll

@@ -8,7 +8,7 @@ define ptr @get_addr() nounwind {
 ; CHECK:       ; %bb.0: ; %entry
 ; CHECK-NEXT:    suba.l #4, %sp
 ; CHECK-NEXT:    lea (_GLOBAL_OFFSET_TABLE_@GOTPCREL,%pc), %a0
-; CHECK-NEXT:    adda.l myvar@TLSGD, %a0
+; CHECK-NEXT:    lea (myvar@TLSGD,%a0), %a0
 ; CHECK-NEXT:    move.l %a0, (%sp)
 ; CHECK-NEXT:    jsr (__tls_get_addr@PLT,%pc)
 ; CHECK-NEXT:    adda.l #4, %sp

llvm/test/CodeGen/M68k/TLS/tlsie.ll

@@ -10,7 +10,7 @@ define dso_local ptr @get_addr() nounwind {
 ; CHECK-NEXT:    jsr __m68k_read_tp@PLT
 ; CHECK-NEXT:    move.l %a0, %d0
 ; CHECK-NEXT:    lea (_GLOBAL_OFFSET_TABLE_@GOTPCREL,%pc), %a0
-; CHECK-NEXT:    add.l (0,myvar@GOTTPOFF,%a0), %d0
+; CHECK-NEXT:    add.l (myvar@GOTTPOFF,%a0), %d0
 ; CHECK-NEXT:    move.l %d0, %a0
 ; CHECK-NEXT:    adda.l #4, %sp
 ; CHECK-NEXT:    rts

llvm/test/CodeGen/M68k/TLS/tlsld.ll

@@ -8,10 +8,10 @@ define dso_local ptr @get_addr() nounwind {
 ; CHECK:       ; %bb.0: ; %entry
 ; CHECK-NEXT:    suba.l #4, %sp
 ; CHECK-NEXT:    lea (_GLOBAL_OFFSET_TABLE_@GOTPCREL,%pc), %a0
-; CHECK-NEXT:    adda.l myvar@TLSLDM, %a0
+; CHECK-NEXT:    lea (myvar@TLSLDM,%a0), %a0
 ; CHECK-NEXT:    move.l %a0, (%sp)
 ; CHECK-NEXT:    jsr (__tls_get_addr@PLT,%pc)
-; CHECK-NEXT:    adda.l myvar@TLSLD, %a0
+; CHECK-NEXT:    lea (myvar@TLSLD,%a0), %a0
 ; CHECK-NEXT:    adda.l #4, %sp
 ; CHECK-NEXT:    rts
 entry:

llvm/test/CodeGen/M68k/TLS/tlsle.ll

@@ -8,7 +8,7 @@ define dso_local ptr @get_addr() nounwind {
 ; CHECK:       ; %bb.0: ; %entry
 ; CHECK-NEXT:    suba.l #4, %sp
 ; CHECK-NEXT:    jsr __m68k_read_tp@PLT
-; CHECK-NEXT:    adda.l myvar@TPOFF, %a0
+; CHECK-NEXT:    lea (myvar@TPOFF,%a0), %a0
 ; CHECK-NEXT:    adda.l #4, %sp
 ; CHECK-NEXT:    rts
 entry: