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31 lines
966 B
LLVM
31 lines
966 B
LLVM
; RUN: llc < %s -march=thumb -mattr=+thumb2 | grep {rsb\\W*r\[0-9\],\\W*r\[0-9\],\\W*r\[0-9\],\\W*lsl\\W*#5$} | count 1
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; RUN: llc < %s -march=thumb -mattr=+thumb2 | grep {rsb\\W*r\[0-9\],\\W*r\[0-9\],\\W*r\[0-9\],\\W*lsr\\W*#6$} | count 1
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; RUN: llc < %s -march=thumb -mattr=+thumb2 | grep {rsb\\W*r\[0-9\],\\W*r\[0-9\],\\W*r\[0-9\],\\W*asr\\W*#7$} | count 1
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; RUN: llc < %s -march=thumb -mattr=+thumb2 | grep {rsb\\W*r\[0-9\],\\W*r\[0-9\],\\W*r\[0-9\],\\W*ror\\W*#8$} | count 1
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define i32 @f2(i32 %a, i32 %b) {
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%tmp = shl i32 %b, 5
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%tmp1 = sub i32 %tmp, %a
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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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%tmp = lshr i32 %b, 6
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%tmp1 = sub i32 %tmp, %a
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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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%tmp = ashr i32 %b, 7
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%tmp1 = sub i32 %tmp, %a
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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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%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 %tmp, %a
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ret i32 %tmp1
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}
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