[PATCH] D154048: [PowerPC] fix jumptable encoding when ppc-use-absolute-jumptables is turned on

[Ting Wang via Phabricator via llvm-commits]

tingwang updated this revision to Diff 536078.
tingwang added a comment.

Update test case after commit NFC patch.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D154048/new/

https://reviews.llvm.org/D154048

Files:
  llvm/lib/Target/PowerPC/PPCISelLowering.cpp
  llvm/test/CodeGen/PowerPC/absol-jump-table-enabled.ll
  llvm/test/CodeGen/PowerPC/pcrel-jump-table.ll


Index: llvm/test/CodeGen/PowerPC/pcrel-jump-table.ll
===================================================================
--- llvm/test/CodeGen/PowerPC/pcrel-jump-table.ll
+++ llvm/test/CodeGen/PowerPC/pcrel-jump-table.ll
@@ -35,13 +35,12 @@
 ; CHECK-A-LE-NEXT:    bctr
 ; CHECK-A-BE-LABEL: jumptable:
 ; CHECK-A-BE:       # %bb.1: # %entry
-; CHECK-A-BE-NEXT:    paddi r5, 0, .LJTI0_0 at PCREL, 1
 ; CHECK-A-BE-NEXT:    rldic r4, r4
-; CHECK-A-BE-NEXT:    lwax r4, r4, r5
+; CHECK-A-BE-NEXT:    paddi r5, 0, .LJTI0_0 at PCREL, 1
+; CHECK-A-BE-NEXT:    ldx r4, r4, r5
 ; CHECK-A-BE-NEXT:    mtctr r4
 ; CHECK-A-BE-NEXT:    bctr
 
-
 entry:
   switch i32 %param, label %sw.default [
     i32 1, label %return
Index: llvm/test/CodeGen/PowerPC/absol-jump-table-enabled.ll
===================================================================
--- llvm/test/CodeGen/PowerPC/absol-jump-table-enabled.ll
+++ llvm/test/CodeGen/PowerPC/absol-jump-table-enabled.ll
@@ -55,34 +55,34 @@
 ;
 ; CHECK-BE-LABEL: jumpTableTest:
 ; CHECK-BE:       # %bb.0: # %entry
-; CHECK-BE:       rldic r[[REG:[0-9]+]], r[[REG]], 2, 30
-; CHECK-BE:       lwax r[[REG]], r[[REG]], r[[REG1:[0-9]+]]
+; CHECK-BE:       rldic r[[REG:[0-9]+]], r[[REG]], 3, 29
+; CHECK-BE:       ldx r[[REG]], r[[REG]], r[[REG1:[0-9]+]]
 ; CHECK-BE:       mtctr r[[REG]]
 ; CHECK-BE:       bctr
 ; CHECK-BE:       blr
 ;
 ; CHECK-AIX-LABEL: jumpTableTest:
 ; CHECK-AIX:       # %bb.0: # %entry
-; CHECK-AIX:       rldic r[[REG:[0-9]+]], r[[REG]], 2, 30
-; CHECK-AIX:       lwax r[[REG]], r[[REG]], r[[REG1:[0-9]+]]
+; CHECK-AIX:       rldic r[[REG:[0-9]+]], r[[REG]], 3, 29
+; CHECK-AIX:       ldx r[[REG]], r[[REG]], r[[REG1:[0-9]+]]
 ; CHECK-AIX:       mtctr r[[REG]]
 ; CHECK-AIX:       bctr
 ; CHECK-AIX:       blr
 ;
 ; CHECK-A-PIC-LE-LABEL:       .LJTI0_0:
-; CHECK-A-PIC-LE:             .long   .LBB0_6-.LJTI0_0
+; CHECK-A-PIC-LE:             .quad   .LBB0_6
 ;
 ; CHECK-R-PIC-LE-LABEL:       .LJTI0_0:
 ; CHECK-R-PIC-LE:             .long   .LBB0_6-.LJTI0_0
 ;
 ; CHECK-A-PIC-BE-LABEL:       .LJTI0_0:
-; CHECK-A-PIC-BE:             .long   .LBB0_9-.LJTI0_0
+; CHECK-A-PIC-BE:             .quad   .LBB0_9
 ;
 ; CHECK-R-PIC-BE-LABEL:       .LJTI0_0:
 ; CHECK-R-PIC-BE:             .long   .LBB0_9-.LJTI0_0
 ;
 ; CHECK-A-PIC-AIX-LABEL:      L..JTI0_0:
-; CHECK-A-PIC-AIX:            .vbyte  4, L..BB0_9-L..JTI0_0
+; CHECK-A-PIC-AIX:            .vbyte  8, L..BB0_9
 ;
 ; CHECK-R-PIC-AIX-LABEL:      L..JTI0_0:
 ; CHECK-R-PIC-AIX:            .vbyte  4, L..BB0_9-L..JTI0_0
Index: llvm/lib/Target/PowerPC/PPCISelLowering.cpp
===================================================================
--- llvm/lib/Target/PowerPC/PPCISelLowering.cpp
+++ llvm/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -3192,7 +3192,8 @@
 unsigned PPCTargetLowering::getJumpTableEncoding() const {
   if (isJumpTableRelative())
     return MachineJumpTableInfo::EK_LabelDifference32;
-
+  if (UseAbsoluteJumpTables)
+    return MachineJumpTableInfo::EK_BlockAddress;
   return TargetLowering::getJumpTableEncoding();
 }
 


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