mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-21 18:29:45 +00:00
efcddc3325
and. This happens with the store->load narrowing stuff. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101348 91177308-0d34-0410-b5e6-96231b3b80d8
48 lines
807 B
LLVM
48 lines
807 B
LLVM
; RUN: llc < %s -march=arm -mattr=+v6t2 | FileCheck %s
|
|
|
|
define i32 @f1(i32 %a) {
|
|
entry:
|
|
; CHECK: f1:
|
|
; CHECK: sbfx r0, r0, #0, #20
|
|
%tmp = shl i32 %a, 12
|
|
%tmp2 = ashr i32 %tmp, 12
|
|
ret i32 %tmp2
|
|
}
|
|
|
|
define i32 @f2(i32 %a) {
|
|
entry:
|
|
; CHECK: f2:
|
|
; CHECK: bfc r0, #20, #12
|
|
%tmp = shl i32 %a, 12
|
|
%tmp2 = lshr i32 %tmp, 12
|
|
ret i32 %tmp2
|
|
}
|
|
|
|
define i32 @f3(i32 %a) {
|
|
entry:
|
|
; CHECK: f3:
|
|
; CHECK: sbfx r0, r0, #5, #3
|
|
%tmp = shl i32 %a, 24
|
|
%tmp2 = ashr i32 %tmp, 29
|
|
ret i32 %tmp2
|
|
}
|
|
|
|
define i32 @f4(i32 %a) {
|
|
entry:
|
|
; CHECK: f4:
|
|
; CHECK: ubfx r0, r0, #5, #3
|
|
%tmp = shl i32 %a, 24
|
|
%tmp2 = lshr i32 %tmp, 29
|
|
ret i32 %tmp2
|
|
}
|
|
|
|
define i32 @f5(i32 %a) {
|
|
entry:
|
|
; CHECK: f5:
|
|
; CHECK-NOT: sbfx
|
|
; CHECK: bx
|
|
%tmp = shl i32 %a, 3
|
|
%tmp2 = ashr i32 %tmp, 1
|
|
ret i32 %tmp2
|
|
}
|