1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2 ; RUN: llc < %s -mtriple=i686-- | FileCheck %s
4 @X = weak global i16 0 ; <ptr> [#uses=1]
5 @Y = weak global i16 0 ; <ptr> [#uses=1]
7 define void @foo(i32 %N) nounwind {
9 ; CHECK: # %bb.0: # %entry
10 ; CHECK-NEXT: movl {{[0-9]+}}(%esp), %eax
11 ; CHECK-NEXT: testl %eax, %eax
12 ; CHECK-NEXT: jle .LBB0_3
13 ; CHECK-NEXT: # %bb.1: # %bb.preheader
14 ; CHECK-NEXT: xorl %ecx, %ecx
15 ; CHECK-NEXT: xorl %edx, %edx
16 ; CHECK-NEXT: .p2align 4, 0x90
17 ; CHECK-NEXT: .LBB0_2: # %bb
18 ; CHECK-NEXT: # =>This Inner Loop Header: Depth=1
19 ; CHECK-NEXT: movw %dx, X
20 ; CHECK-NEXT: movw %cx, Y
21 ; CHECK-NEXT: incl %edx
22 ; CHECK-NEXT: addl $4, %ecx
23 ; CHECK-NEXT: cmpl %edx, %eax
24 ; CHECK-NEXT: jne .LBB0_2
25 ; CHECK-NEXT: .LBB0_3: # %return
28 %tmp1019 = icmp sgt i32 %N, 0 ; <i1> [#uses=1]
29 br i1 %tmp1019, label %bb, label %return
31 bb: ; preds = %bb, %entry
32 %i.014.0 = phi i32 [ 0, %entry ], [ %indvar.next, %bb ] ; <i32> [#uses=2]
33 %tmp1 = trunc i32 %i.014.0 to i16 ; <i16> [#uses=2]
34 store volatile i16 %tmp1, ptr @X, align 2
35 %tmp34 = shl i16 %tmp1, 2 ; <i16> [#uses=1]
36 store volatile i16 %tmp34, ptr @Y, align 2
37 %indvar.next = add i32 %i.014.0, 1 ; <i32> [#uses=2]
38 %exitcond = icmp eq i32 %indvar.next, %N ; <i1> [#uses=1]
39 br i1 %exitcond, label %return, label %bb
41 return: ; preds = %bb, %entry