llvm-project/llvm/test/CodeGen/Thumb2/thumb2-sub4.ll

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; RUN: llc -mtriple=thumb-eabi -mcpu=arm1156t2-s -mattr=+thumb2 %s -o - | FileCheck %s
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define i32 @f1(i32 %a, i32 %b) {
; CHECK-LABEL: f1:
; CHECK: subs r0, r0, r1
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%tmp = sub i32 %a, %b
ret i32 %tmp
}
define i32 @f2(i32 %a, i32 %b) {
; CHECK-LABEL: f2:
; CHECK: sub.w r0, r0, r1, lsl #5
%tmp = shl i32 %b, 5
%tmp1 = sub i32 %a, %tmp
ret i32 %tmp1
}
define i32 @f3(i32 %a, i32 %b) {
; CHECK-LABEL: f3:
; CHECK: sub.w r0, r0, r1, lsr #6
%tmp = lshr i32 %b, 6
%tmp1 = sub i32 %a, %tmp
ret i32 %tmp1
}
define i32 @f4(i32 %a, i32 %b) {
; CHECK-LABEL: f4:
; CHECK: sub.w r0, r0, r1, asr #7
%tmp = ashr i32 %b, 7
%tmp1 = sub i32 %a, %tmp
ret i32 %tmp1
}
define i32 @f5(i32 %a, i32 %b) {
; CHECK-LABEL: f5:
; CHECK: sub.w r0, r0, r0, ror #8
%l8 = shl i32 %a, 24
%r8 = lshr i32 %a, 8
%tmp = or i32 %l8, %r8
%tmp1 = sub i32 %a, %tmp
ret i32 %tmp1
}