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; RUN: llc -mtriple=arm-eabi -mattr=+v6 %s -o - | FileCheck %s --check-prefix=CHECK-V6
; RUN: llc -mtriple=arm-eabi -mattr=+v7 %s -o - | FileCheck %s --check-prefix=CHECK-V7
define i32 @test0(i8 %A) {
; CHECK-LABEL: test0
; CHECK-V6: sxtb r0, r0
; CHECK-V7: sxtb r0, r0
%B = sext i8 %A to i32
ret i32 %B
}
define signext i8 @test1(i32 %A) {
; CHECK-LABEL: test1
; CHECK-V6: lsr r0, r0, #8
; CHECK-V6: sxtb r0, r0
; CHECK-V6-NOT: sbfx
; CHECk-V7: sbfx r0, r0, #8, #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 signext i32 @test2(i32 %A, i32 %X) {
; CHECK-LABEL: test2
; CHECK-V6: sxtab r0, r1, r0, ror #8
; CHECK-V7: sxtab r0, r1, r0, ror #8
%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
}
define signext i32 @test3(i32 %A, i32 %X) {
; CHECK-LABEL: test3
; CHECK-V6: sxtab r0, r1, r0, ror #16
; CHECK-V7: sxtab r0, r1, r0, ror #16
%B = lshr i32 %A, 16
%C = shl i32 %A, 16
%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
}
define signext i32 @test4(i32 %A, i32 %X) {
; CHECK-LABEL: test4
; CHECK-V6: sxtah r0, r1, r0, ror #8
; CHECK-V7: sxtah r0, r1, r0, ror #8
%B = lshr i32 %A, 8
%C = shl i32 %A, 24
%D = or i32 %B, %C
%E = trunc i32 %D to i16
%F = sext i16 %E to i32
%G = add i32 %F, %X
ret i32 %G
}
define signext i32 @test5(i32 %A, i32 %X) {
; CHECK-LABEL: test5
; CHECK-V6: sxtah r0, r1, r0, ror #24
; CHECK-V7: sxtah r0, r1, r0, ror #24
%B = lshr i32 %A, 24
%C = shl i32 %A, 8
%D = or i32 %B, %C
%E = trunc i32 %D to i16
%F = sext i16 %E to i32
%G = add i32 %F, %X
ret i32 %G
}
define i32 @test6(i8 %A, i32 %X) {
; CHECK-LABEL: test6
; CHECK-V6: sxtab r0, r1, r0
; CHECK-V7: sxtab r0, r1, r0
%sext = sext i8 %A to i32
%add = add i32 %X, %sext
ret i32 %add
}
define i32 @test7(i32 %A, i32 %X) {
; CHECK-LABEL: test7
; CHECK-V6: sxtab r0, r1, r0
; CHECK-V7: sxtab r0, r1, r0
%shl = shl i32 %A, 24
%shr = ashr i32 %shl, 24
%add = add i32 %X, %shr
ret i32 %add
}
define i32 @test8(i16 %A, i32 %X) {
; CHECK-LABEL: test8
; CHECK-V6: sxtah r0, r1, r0
; CHECK-V7: sxtah r0, r1, r0
%sext = sext i16 %A to i32
%add = add i32 %X, %sext
ret i32 %add
}
define i32 @test9(i32 %A, i32 %X) {
; CHECK-LABEL: test9
; CHECK-V6: sxtah r0, r1, r0
; CHECK-V7: sxtah r0, r1, r0
%shl = shl i32 %A, 16
%shr = ashr i32 %shl, 16
%add = add i32 %X, %shr
ret i32 %add
}
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