llvm/test/CodeGen/Thumb2/thumb2-shifter.ll
2009-09-09 00:09:15 +00:00

41 lines
1.0 KiB
LLVM

; RUN: llc < %s -march=thumb -mattr=+thumb2 | grep lsl
; RUN: llc < %s -march=thumb -mattr=+thumb2 | grep lsr
; RUN: llc < %s -march=thumb -mattr=+thumb2 | grep asr
; RUN: llc < %s -march=thumb -mattr=+thumb2 | grep ror
; RUN: llc < %s -march=thumb -mattr=+thumb2 | not grep mov
define i32 @t2ADDrs_lsl(i32 %X, i32 %Y) {
%A = shl i32 %Y, 16
%B = add i32 %X, %A
ret i32 %B
}
define i32 @t2ADDrs_lsr(i32 %X, i32 %Y) {
%A = lshr i32 %Y, 16
%B = add i32 %X, %A
ret i32 %B
}
define i32 @t2ADDrs_asr(i32 %X, i32 %Y) {
%A = ashr i32 %Y, 16
%B = add i32 %X, %A
ret i32 %B
}
; i32 ror(n) = (x >> n) | (x << (32 - n))
define i32 @t2ADDrs_ror(i32 %X, i32 %Y) {
%A = lshr i32 %Y, 16
%B = shl i32 %Y, 16
%C = or i32 %B, %A
%R = add i32 %X, %C
ret i32 %R
}
define i32 @t2ADDrs_noRegShift(i32 %X, i32 %Y, i8 %sh) {
%shift.upgrd.1 = zext i8 %sh to i32
%A = shl i32 %Y, %shift.upgrd.1
%B = add i32 %X, %A
ret i32 %B
}