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43 lines
908 B
LLVM
43 lines
908 B
LLVM
; 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) {
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; CHECK-LABEL: f1:
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; CHECK: subs r0, r0, r1
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%tmp = sub i32 %a, %b
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ret i32 %tmp
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}
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define i32 @f2(i32 %a, i32 %b) {
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; CHECK-LABEL: f2:
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; CHECK: sub.w r0, r0, r1, lsl #5
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%tmp = shl i32 %b, 5
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%tmp1 = sub i32 %a, %tmp
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ret i32 %tmp1
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}
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define i32 @f3(i32 %a, i32 %b) {
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; CHECK-LABEL: f3:
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; CHECK: sub.w r0, r0, r1, lsr #6
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%tmp = lshr i32 %b, 6
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%tmp1 = sub i32 %a, %tmp
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ret i32 %tmp1
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}
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define i32 @f4(i32 %a, i32 %b) {
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; CHECK-LABEL: f4:
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; CHECK: sub.w r0, r0, r1, asr #7
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%tmp = ashr i32 %b, 7
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%tmp1 = sub i32 %a, %tmp
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ret i32 %tmp1
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}
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define i32 @f5(i32 %a, i32 %b) {
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; CHECK-LABEL: f5:
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; CHECK: sub.w r0, r0, r0, ror #8
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%l8 = shl i32 %a, 24
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%r8 = lshr i32 %a, 8
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%tmp = or i32 %l8, %r8
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%tmp1 = sub i32 %a, %tmp
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ret i32 %tmp1
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}
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