blob: 942dd8a591f01364169c1f405163b5124a134d0a [file] [log] [blame]
Nadav Rotem7b66c472013-05-22 19:28:41 +00001; RUN: llc < %s -mcpu=corei7-avx -mtriple=x86_64-linux | FileCheck %s
2
3;CHECK: cftx020
4;CHECK: vmovsd (%rdi), %xmm{{.*}}
5;CHECK: vmovsd 16(%rdi), %xmm{{.*}}
Nadav Rotem7b66c472013-05-22 19:28:41 +00006;CHECK: vmovsd 24(%rdi), %xmm{{.*}}
Andrew Trick5a1e0af2013-06-24 09:13:20 +00007;CHECK: vmovhpd 8(%rdi), %xmm{{.*}}
Nadav Rotem7b66c472013-05-22 19:28:41 +00008;CHECK: vmovupd %xmm{{.*}}, (%rdi)
9;CHECK: vmovupd %xmm{{.*}}, 16(%rdi)
10;CHECK: ret
11
12; A test from pifft (after SLP-vectorization) that fails when we drop the chain on newly merged loads.
13define void @cftx020(double* nocapture %a) {
14entry:
15 %0 = load double* %a, align 8
16 %arrayidx1 = getelementptr inbounds double* %a, i64 2
17 %1 = load double* %arrayidx1, align 8
18 %arrayidx2 = getelementptr inbounds double* %a, i64 1
19 %2 = load double* %arrayidx2, align 8
20 %arrayidx3 = getelementptr inbounds double* %a, i64 3
21 %3 = load double* %arrayidx3, align 8
22 %4 = insertelement <2 x double> undef, double %0, i32 0
23 %5 = insertelement <2 x double> %4, double %3, i32 1
24 %6 = insertelement <2 x double> undef, double %1, i32 0
25 %7 = insertelement <2 x double> %6, double %2, i32 1
26 %8 = fadd <2 x double> %5, %7
27 %9 = bitcast double* %a to <2 x double>*
28 store <2 x double> %8, <2 x double>* %9, align 8
29 %10 = insertelement <2 x double> undef, double %0, i32 0
30 %11 = insertelement <2 x double> %10, double %2, i32 1
31 %12 = insertelement <2 x double> undef, double %1, i32 0
32 %13 = insertelement <2 x double> %12, double %3, i32 1
33 %14 = fsub <2 x double> %11, %13
34 %15 = bitcast double* %arrayidx1 to <2 x double>*
35 store <2 x double> %14, <2 x double>* %15, align 8
36 ret void
37}