| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+sse4.2 | FileCheck %s |
| |
| ; widen v8i8 to v16i8 (checks even power of 2 widening with add & and) |
| |
| define void @update(i64* %dst_i, i64* %src_i, i32 %n) nounwind { |
| ; CHECK-LABEL: update: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: subl $12, %esp |
| ; CHECK-NEXT: movl $0, (%esp) |
| ; CHECK-NEXT: pcmpeqd %xmm0, %xmm0 |
| ; CHECK-NEXT: movdqa {{.*#+}} xmm1 = [4,4,4,4,4,4,4,4] |
| ; CHECK-NEXT: jmp .LBB0_1 |
| ; CHECK-NEXT: .p2align 4, 0x90 |
| ; CHECK-NEXT: .LBB0_2: # %forbody |
| ; CHECK-NEXT: # in Loop: Header=BB0_1 Depth=1 |
| ; CHECK-NEXT: movl (%esp), %eax |
| ; CHECK-NEXT: leal (,%eax,8), %ecx |
| ; CHECK-NEXT: movl {{[0-9]+}}(%esp), %edx |
| ; CHECK-NEXT: addl %ecx, %edx |
| ; CHECK-NEXT: movl %edx, {{[0-9]+}}(%esp) |
| ; CHECK-NEXT: addl {{[0-9]+}}(%esp), %ecx |
| ; CHECK-NEXT: movl %ecx, {{[0-9]+}}(%esp) |
| ; CHECK-NEXT: pmovzxbw {{.*#+}} xmm2 = mem[0],zero,mem[1],zero,mem[2],zero,mem[3],zero,mem[4],zero,mem[5],zero,mem[6],zero,mem[7],zero |
| ; CHECK-NEXT: psubw %xmm0, %xmm2 |
| ; CHECK-NEXT: pand %xmm1, %xmm2 |
| ; CHECK-NEXT: packuswb %xmm0, %xmm2 |
| ; CHECK-NEXT: movq %xmm2, (%edx,%eax,8) |
| ; CHECK-NEXT: incl (%esp) |
| ; CHECK-NEXT: .LBB0_1: # %forcond |
| ; CHECK-NEXT: # =>This Inner Loop Header: Depth=1 |
| ; CHECK-NEXT: movl (%esp), %eax |
| ; CHECK-NEXT: cmpl {{[0-9]+}}(%esp), %eax |
| ; CHECK-NEXT: jl .LBB0_2 |
| ; CHECK-NEXT: # %bb.3: # %afterfor |
| ; CHECK-NEXT: addl $12, %esp |
| ; CHECK-NEXT: retl |
| entry: |
| %dst_i.addr = alloca i64* |
| %src_i.addr = alloca i64* |
| %n.addr = alloca i32 |
| %i = alloca i32, align 4 |
| %dst = alloca <8 x i8>*, align 4 |
| %src = alloca <8 x i8>*, align 4 |
| store i64* %dst_i, i64** %dst_i.addr |
| store i64* %src_i, i64** %src_i.addr |
| store i32 %n, i32* %n.addr |
| store i32 0, i32* %i |
| br label %forcond |
| |
| forcond: |
| %tmp = load i32, i32* %i |
| %tmp1 = load i32, i32* %n.addr |
| %cmp = icmp slt i32 %tmp, %tmp1 |
| br i1 %cmp, label %forbody, label %afterfor |
| |
| forbody: |
| %tmp2 = load i32, i32* %i |
| %tmp3 = load i64*, i64** %dst_i.addr |
| %arrayidx = getelementptr i64, i64* %tmp3, i32 %tmp2 |
| %conv = bitcast i64* %arrayidx to <8 x i8>* |
| store <8 x i8>* %conv, <8 x i8>** %dst |
| %tmp4 = load i32, i32* %i |
| %tmp5 = load i64*, i64** %src_i.addr |
| %arrayidx6 = getelementptr i64, i64* %tmp5, i32 %tmp4 |
| %conv7 = bitcast i64* %arrayidx6 to <8 x i8>* |
| store <8 x i8>* %conv7, <8 x i8>** %src |
| %tmp8 = load i32, i32* %i |
| %tmp9 = load <8 x i8>*, <8 x i8>** %dst |
| %arrayidx10 = getelementptr <8 x i8>, <8 x i8>* %tmp9, i32 %tmp8 |
| %tmp11 = load i32, i32* %i |
| %tmp12 = load <8 x i8>*, <8 x i8>** %src |
| %arrayidx13 = getelementptr <8 x i8>, <8 x i8>* %tmp12, i32 %tmp11 |
| %tmp14 = load <8 x i8>, <8 x i8>* %arrayidx13 |
| %add = add <8 x i8> %tmp14, < i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1 > |
| %and = and <8 x i8> %add, < i8 4, i8 4, i8 4, i8 4, i8 4, i8 4, i8 4, i8 4 > |
| store <8 x i8> %and, <8 x i8>* %arrayidx10 |
| br label %forinc |
| |
| forinc: |
| %tmp15 = load i32, i32* %i |
| %inc = add i32 %tmp15, 1 |
| store i32 %inc, i32* %i |
| br label %forcond |
| |
| afterfor: |
| ret void |
| } |
| |