36 lines
1.0 KiB
LLVM
36 lines
1.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
|
; RUN: llc -mtriple=arm-eabi < %s | FileCheck %s
|
|
|
|
; Make sure this doesn't hang, and there are no unnecessary
|
|
; "and" instructions.
|
|
|
|
define dso_local void @f(i16* %p) {
|
|
; CHECK-LABEL: f:
|
|
; CHECK: @ %bb.0: @ %entry
|
|
; CHECK-NEXT: .LBB0_1: @ %bb
|
|
; CHECK-NEXT: @ =>This Inner Loop Header: Depth=1
|
|
; CHECK-NEXT: ldrh r1, [r0]
|
|
; CHECK-NEXT: and r2, r1, #255
|
|
; CHECK-NEXT: add r3, r2, r1, lsr #8
|
|
; CHECK-NEXT: add r2, r3, r2
|
|
; CHECK-NEXT: add r1, r2, r1, lsr #8
|
|
; CHECK-NEXT: add r1, r1, #2
|
|
; CHECK-NEXT: lsr r1, r1, #2
|
|
; CHECK-NEXT: strh r1, [r0]
|
|
; CHECK-NEXT: b .LBB0_1
|
|
entry:
|
|
br label %bb
|
|
|
|
bb:
|
|
%_p_scalar_ = load i16, i16* %p, align 2
|
|
%p_and = and i16 %_p_scalar_, 255
|
|
%p_ = lshr i16 %_p_scalar_, 8
|
|
%p_add = add nuw nsw i16 %p_, 2
|
|
%p_add14 = add nuw nsw i16 %p_add, %p_and
|
|
%p_add18 = add nuw nsw i16 %p_add14, %p_and
|
|
%p_add19 = add nuw nsw i16 %p_add18, %p_
|
|
%p_200 = lshr i16 %p_add19, 2
|
|
store i16 %p_200, i16* %p, align 2
|
|
br label %bb
|
|
}
|