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llvm-mirror/test/CodeGen/MSP430/jumptable.ll
Anton Korobeynikov dd18739c8d [MSP430] Add MC layer
Reapply r346374 with the fixes for modules build.

Original summary:

This change implements assembler parser, code emitter, ELF object writer
and disassembler for the MSP430 ISA.  Also, more instruction forms are added
to the target description.

Patch by Michael Skvortsov!

llvm-svn: 346948
2018-11-15 12:29:43 +00:00

58 lines
1.5 KiB
LLVM

; RUN: llc < %s | FileCheck %s
target datalayout = "e-p:16:16:16-i8:8:8-i16:16:16-i32:16:32-n8:16"
target triple = "msp430---elf"
; Function Attrs: nounwind
define i16 @test(i16 %i) #0 {
entry:
; CHECK-LABEL: test:
; CHECK: sub #4, r1
; CHECK-NEXT: mov r12, 0(r1)
; CHECK-NEXT: cmp #4, r12
; CHECK-NEXT: jhs .LBB0_3
%retval = alloca i16, align 2
%i.addr = alloca i16, align 2
store i16 %i, i16* %i.addr, align 2
%0 = load i16, i16* %i.addr, align 2
; CHECK: add r12, r12
; CHECK-NEXT: br .LJTI0_0(r12)
switch i16 %0, label %sw.default [
i16 0, label %sw.bb
i16 1, label %sw.bb1
i16 2, label %sw.bb2
i16 3, label %sw.bb3
]
sw.bb: ; preds = %entry
store i16 0, i16* %retval
br label %return
sw.bb1: ; preds = %entry
store i16 1, i16* %retval
br label %return
sw.bb2: ; preds = %entry
store i16 2, i16* %retval
br label %return
sw.bb3: ; preds = %entry
store i16 3, i16* %retval
br label %return
sw.default: ; preds = %entry
store i16 2, i16* %retval
br label %return
return: ; preds = %sw.default, %sw.bb3, %sw.bb2, %sw.bb1, %sw.bb
%1 = load i16, i16* %retval
ret i16 %1
; CHECK: ret
}
; CHECK: .LJTI0_0:
; CHECK-NEXT: .short .LBB0_2
; CHECK-NEXT: .short .LBB0_4
; CHECK-NEXT: .short .LBB0_3
; CHECK-NEXT: .short .LBB0_5