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; RUN: llc < %s -march=thumb -mattr=+thumb2 | FileCheck %s
define i32 @test0(i8 %A) {
; CHECK: test0
; CHECK: sxtb r0, r0
%B = sext i8 %A to i32
ret i32 %B
}
define i8 @test1(i32 %A) signext {
; CHECK: test1
; CHECK: sxtb.w r0, r0, ror #8
%B = lshr i32 %A, 8
%C = shl i32 %A, 24
%D = or i32 %B, %C
%E = trunc i32 %D to i8
ret i8 %E
}
define i32 @test2(i32 %A, i32 %X) signext {
; CHECK: test2
; CHECK: lsrs r0, r0, #8
; CHECK: sxtab r0, r1, r0
%B = lshr i32 %A, 8
%C = shl i32 %A, 24
%D = or i32 %B, %C
%E = trunc i32 %D to i8
%F = sext i8 %E to i32
%G = add i32 %F, %X
ret i32 %G
}
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