1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2 ; RUN: llc -mtriple=i686-unknown-unknown -mattr=+sse4.2 < %s | FileCheck %s
3 ; RUN: llc -mtriple=i686-unknown-unknown -mcpu=atom < %s | FileCheck -check-prefix=ATOM %s
5 ; Scheduler causes produce a different instruction order
7 ; bitcast a v4i16 to v2i32
9 define void @convert(ptr %dst, ptr %src) nounwind {
10 ; CHECK-LABEL: convert:
11 ; CHECK: # %bb.0: # %entry
12 ; CHECK-NEXT: pushl %eax
13 ; CHECK-NEXT: movl $0, (%esp)
14 ; CHECK-NEXT: pcmpeqd %xmm0, %xmm0
15 ; CHECK-NEXT: cmpl $3, (%esp)
16 ; CHECK-NEXT: jg .LBB0_3
17 ; CHECK-NEXT: .p2align 4, 0x90
18 ; CHECK-NEXT: .LBB0_2: # %forbody
19 ; CHECK-NEXT: # =>This Inner Loop Header: Depth=1
20 ; CHECK-NEXT: movl (%esp), %eax
21 ; CHECK-NEXT: movl {{[0-9]+}}(%esp), %ecx
22 ; CHECK-NEXT: movl {{[0-9]+}}(%esp), %edx
23 ; CHECK-NEXT: movq {{.*#+}} xmm1 = mem[0],zero
24 ; CHECK-NEXT: psubw %xmm0, %xmm1
25 ; CHECK-NEXT: movq %xmm1, (%ecx,%eax,8)
26 ; CHECK-NEXT: incl (%esp)
27 ; CHECK-NEXT: cmpl $3, (%esp)
28 ; CHECK-NEXT: jle .LBB0_2
29 ; CHECK-NEXT: .LBB0_3: # %afterfor
30 ; CHECK-NEXT: popl %eax
33 ; ATOM-LABEL: convert:
34 ; ATOM: # %bb.0: # %entry
35 ; ATOM-NEXT: pushl %eax
36 ; ATOM-NEXT: pcmpeqd %xmm0, %xmm0
37 ; ATOM-NEXT: movl $0, (%esp)
38 ; ATOM-NEXT: cmpl $3, (%esp)
39 ; ATOM-NEXT: jg .LBB0_3
40 ; ATOM-NEXT: .p2align 4, 0x90
41 ; ATOM-NEXT: .LBB0_2: # %forbody
42 ; ATOM-NEXT: # =>This Inner Loop Header: Depth=1
43 ; ATOM-NEXT: movl (%esp), %eax
44 ; ATOM-NEXT: movl {{[0-9]+}}(%esp), %ecx
45 ; ATOM-NEXT: movq {{.*#+}} xmm1 = mem[0],zero
46 ; ATOM-NEXT: movl {{[0-9]+}}(%esp), %ecx
47 ; ATOM-NEXT: psubw %xmm0, %xmm1
48 ; ATOM-NEXT: movq %xmm1, (%ecx,%eax,8)
49 ; ATOM-NEXT: incl (%esp)
50 ; ATOM-NEXT: cmpl $3, (%esp)
51 ; ATOM-NEXT: jle .LBB0_2
52 ; ATOM-NEXT: .LBB0_3: # %afterfor
53 ; ATOM-NEXT: popl %eax
56 %dst.addr = alloca ptr
57 %src.addr = alloca ptr
58 %i = alloca i32, align 4
59 store ptr %dst, ptr %dst.addr
60 store ptr %src, ptr %src.addr
65 %tmp = load i32, ptr %i
66 %cmp = icmp slt i32 %tmp, 4
67 br i1 %cmp, label %forbody, label %afterfor
70 %tmp1 = load i32, ptr %i
71 %tmp2 = load ptr, ptr %dst.addr
72 %arrayidx = getelementptr <2 x i32>, ptr %tmp2, i32 %tmp1
73 %tmp3 = load i32, ptr %i
74 %tmp4 = load ptr, ptr %src.addr
75 %arrayidx5 = getelementptr <4 x i16>, ptr %tmp4, i32 %tmp3
76 %tmp6 = load <4 x i16>, ptr %arrayidx5
77 %add = add <4 x i16> %tmp6, < i16 1, i16 1, i16 1, i16 1 >
78 %conv = bitcast <4 x i16> %add to <2 x i32>
79 store <2 x i32> %conv, ptr %arrayidx
83 %tmp7 = load i32, ptr %i
84 %inc = add i32 %tmp7, 1
85 store i32 %inc, ptr %i