jumptable.ll
1.51 KB
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; 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