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Properly lower jump tables on MSP430. Patch by Job Noorman!

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186283 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anton Korobeynikov 2013-07-14 15:11:00 +00:00
parent 3c0e8fbd4e
commit a77f816c4c
2 changed files with 7 additions and 7 deletions
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4
lib/Target/MSP430/MSP430ISelLowering.cpp
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@ -987,8 +987,8 @@ SDValue MSP430TargetLowering::LowerJumpTable(SDValue Op,
SelectionDAG &DAG) const { SelectionDAG &DAG) const {
JumpTableSDNode *JT = cast<JumpTableSDNode>(Op); JumpTableSDNode *JT = cast<JumpTableSDNode>(Op);
SDValue Result = DAG.getTargetJumpTable(JT->getIndex(), getPointerTy()); SDValue Result = DAG.getTargetJumpTable(JT->getIndex(), getPointerTy());
Result.getNode()->setDebugLoc(JT->getDebugLoc()); return DAG.getNode(MSP430ISD::Wrapper, SDLoc(JT),
return Result; getPointerTy(), Result);
} }
/// getPostIndexedAddressParts - returns true by value, base pointer and /// getPostIndexedAddressParts - returns true by value, base pointer and

10
test/CodeGen/MSP430/jumptable.ll
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@ -1,4 +1,4 @@
; RUN: llc -O0 < %s | FileCheck %s ; RUN: llc < %s | FileCheck %s
target datalayout = "e-p:16:16:16-i8:8:8-i16:16:16-i32:16:32-n8:16" target datalayout = "e-p:16:16:16-i8:8:8-i16:16:16-i32:16:32-n8:16"
target triple = "msp430---elf" target triple = "msp430---elf"
@ -11,9 +11,9 @@ entry:
%i.addr = alloca i16, align 2 %i.addr = alloca i16, align 2
store i16 %i, i16* %i.addr, align 2 store i16 %i, i16* %i.addr, align 2
%0 = load i16* %i.addr, align 2 %0 = load i16* %i.addr, align 2
; CHECK: add.w #.LJTI0_0, [[REG1:r[0-9]+]] ; CHECK: mov.w #2, r14
; CHECK: mov.w 0([[REG1]]), [[REG2:r[0-9]+]] ; CHECK: call #__mulhi3hw_noint
; CHECK: mov.w [[REG2]], pc ; CHECK: mov.w .LJTI0_0(r15), pc
switch i16 %0, label %sw.default [ switch i16 %0, label %sw.default [
i16 0, label %sw.bb i16 0, label %sw.bb
i16 1, label %sw.bb1 i16 1, label %sw.bb1
@ -49,6 +49,6 @@ return: ; preds = %sw.default, %sw.bb3
; CHECK: .LJTI0_0: ; CHECK: .LJTI0_0:
; CHECK-NEXT: .short .LBB0_2 ; CHECK-NEXT: .short .LBB0_2
; CHECK-NEXT: .short .LBB0_3
; CHECK-NEXT: .short .LBB0_4 ; CHECK-NEXT: .short .LBB0_4
; CHECK-NEXT: .short .LBB0_3
; CHECK-NEXT: .short .LBB0_5 ; CHECK-NEXT: .short .LBB0_5