1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {sub\\W*r\[0-9\],\\W*r\[0-9\],\\W*r\[0-9\]$} | count 1
; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {sub\\W*r\[0-9\],\\W*r\[0-9\],\\W*r\[0-9\],\\W*lsl\\W*#5$} | count 1
; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {sub\\W*r\[0-9\],\\W*r\[0-9\],\\W*r\[0-9\],\\W*lsr\\W*#6$} | count 1
; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {sub\\W*r\[0-9\],\\W*r\[0-9\],\\W*r\[0-9\],\\W*asr\\W*#7$} | count 1
; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {sub\\W*r\[0-9\],\\W*r\[0-9\],\\W*r\[0-9\],\\W*ror\\W*#8$} | count 1
define i32 @f1(i32 %a, i32 %b) {
%tmp = sub i32 %a, %b
ret i32 %tmp
}
define i32 @f2(i32 %a, i32 %b) {
%tmp = shl i32 %b, 5
%tmp1 = sub i32 %a, %tmp
ret i32 %tmp1
}
define i32 @f3(i32 %a, i32 %b) {
%tmp = lshr i32 %b, 6
%tmp1 = sub i32 %a, %tmp
ret i32 %tmp1
}
define i32 @f4(i32 %a, i32 %b) {
%tmp = ashr i32 %b, 7
%tmp1 = sub i32 %a, %tmp
ret i32 %tmp1
}
define i32 @f5(i32 %a, i32 %b) {
%l8 = shl i32 %a, 24
%r8 = lshr i32 %a, 8
%tmp = or i32 %l8, %r8
%tmp1 = sub i32 %a, %tmp
ret i32 %tmp1
}
|
