third_party/llvm-7.0/llvm/test/CodeGen/ARM/sbfx.ll

; RUN: llc -mtriple=arm-eabi -mattr=+v6t2 %s -o - | FileCheck %s

define i32 @f1(i32 %a) {
entry:
; CHECK-LABEL: f1:
; CHECK: sbfx r0, r0, #0, #20
    %tmp = shl i32 %a, 12
    %tmp2 = ashr i32 %tmp, 12
    ret i32 %tmp2
}

define i32 @f2(i32 %a) {
entry:
; CHECK-LABEL: f2:
; CHECK: bfc	r0, #20, #12
    %tmp = shl i32 %a, 12
    %tmp2 = lshr i32 %tmp, 12
    ret i32 %tmp2
}

define i32 @f3(i32 %a) {
entry:
; CHECK-LABEL: f3:
; CHECK: sbfx r0, r0, #5, #3
    %tmp = shl i32 %a, 24
    %tmp2 = ashr i32 %tmp, 29
    ret i32 %tmp2
}

define i32 @f4(i32 %a) {
entry:
; CHECK-LABEL: f4:
; CHECK: ubfx r0, r0, #5, #3
    %tmp = shl i32 %a, 24
    %tmp2 = lshr i32 %tmp, 29
    ret i32 %tmp2
}

define i32 @f5(i32 %a) {
entry:
; CHECK-LABEL: f5:
; CHECK-NOT: sbfx
; CHECK: bx
    %tmp = shl i32 %a, 3
    %tmp2 = ashr i32 %tmp, 1
    ret i32 %tmp2
}

define signext i8 @f6(i32 %a) {
; CHECK-LABEL: f6:
; CHECK: sbfx r0, r0, #23, #8

  %tmp = lshr i32 %a, 23
  %res = trunc i32 %tmp to i8
  ret i8 %res
}

define signext i8 @f7(i32 %a) {
; CHECK-LABEL: f7:
; CHECK-NOT: sbfx

  %tmp = lshr i32 %a, 25
  %res = trunc i32 %tmp to i8
  ret i8 %res
}