1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt < %s -passes=slp-vectorizer,dce -S -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7-avx | FileCheck %s
4 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
5 target triple = "x86_64-apple-macosx10.8.0"
7 ; double foo(ptr restrict b, ptr restrict a, int n, int m) {
11 ; for (int i=0; i < 100; i++) {
16 ; x = g; <----- external user!
23 ; return x; <-- must extract here!
26 define double @ext_user(ptr noalias nocapture %B, ptr noalias nocapture %A, i32 %n, i32 %m) {
27 ; CHECK-LABEL: @ext_user(
29 ; CHECK-NEXT: [[TMP1:%.*]] = load <2 x double>, ptr [[A:%.*]], align 8
30 ; CHECK-NEXT: br label [[FOR_BODY:%.*]]
32 ; CHECK-NEXT: [[I_020:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[INC:%.*]], [[FOR_BODY]] ]
33 ; CHECK-NEXT: [[TMP2:%.*]] = phi <2 x double> [ [[TMP1]], [[ENTRY]] ], [ [[TMP5:%.*]], [[FOR_BODY]] ]
34 ; CHECK-NEXT: [[TMP3:%.*]] = fadd <2 x double> [[TMP2]], splat (double 1.000000e+01)
35 ; CHECK-NEXT: [[TMP4:%.*]] = fmul <2 x double> [[TMP3]], splat (double 4.000000e+00)
36 ; CHECK-NEXT: [[TMP5]] = fadd <2 x double> [[TMP4]], splat (double 4.000000e+00)
37 ; CHECK-NEXT: [[INC]] = add nsw i32 [[I_020]], 1
38 ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i32 [[INC]], 100
39 ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END:%.*]], label [[FOR_BODY]]
41 ; CHECK-NEXT: store <2 x double> [[TMP5]], ptr [[B:%.*]], align 8
42 ; CHECK-NEXT: [[TMP7:%.*]] = extractelement <2 x double> [[TMP4]], i32 0
43 ; CHECK-NEXT: ret double [[TMP7]]
46 %arrayidx = getelementptr inbounds double, ptr %A, i64 1
47 %0 = load double, ptr %arrayidx, align 8
48 %1 = load double, ptr %A, align 8
51 for.body: ; preds = %for.body, %entry
52 %i.020 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
53 %G.019 = phi double [ %1, %entry ], [ %add5, %for.body ]
54 %R.018 = phi double [ %0, %entry ], [ %add4, %for.body ]
55 %add = fadd double %R.018, 1.000000e+01
56 %add2 = fadd double %G.019, 1.000000e+01
57 %mul = fmul double %add, 4.000000e+00
58 %mul3 = fmul double %add2, 4.000000e+00
59 %add4 = fadd double %mul, 4.000000e+00
60 %add5 = fadd double %mul3, 4.000000e+00
61 %inc = add nsw i32 %i.020, 1
62 %exitcond = icmp eq i32 %inc, 100
63 br i1 %exitcond, label %for.end, label %for.body
65 for.end: ; preds = %for.body
66 store double %add5, ptr %B, align 8
67 %arrayidx7 = getelementptr inbounds double, ptr %B, i64 1
68 store double %add4, ptr %arrayidx7, align 8
72 ; A need-to-gather entry cannot be an external use of the scalar element.
73 ; Instead the insertelement instructions of the need-to-gather entry are the
75 ; This test would assert because we would keep the scalar fpext and fadd alive.
78 define i32 @needtogather(ptr noalias %a, ptr noalias %b, ptr noalias %c,
79 ; CHECK-LABEL: @needtogather(
81 ; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[D:%.*]], align 4
82 ; CHECK-NEXT: [[CONV:%.*]] = sitofp i32 [[TMP0]] to float
83 ; CHECK-NEXT: [[TMP1:%.*]] = load float, ptr [[C:%.*]], align 4
84 ; CHECK-NEXT: [[SUB:%.*]] = fsub float 0.000000e+00, [[TMP1]]
85 ; CHECK-NEXT: [[MUL:%.*]] = fmul float [[SUB]], 0.000000e+00
86 ; CHECK-NEXT: [[ADD:%.*]] = fadd float [[CONV]], [[MUL]]
87 ; CHECK-NEXT: [[CONV1:%.*]] = fpext float [[ADD]] to double
88 ; CHECK-NEXT: [[SUB3:%.*]] = fsub float 1.000000e+00, [[TMP1]]
89 ; CHECK-NEXT: [[MUL4:%.*]] = fmul float [[SUB3]], 0.000000e+00
90 ; CHECK-NEXT: [[ADD5:%.*]] = fadd float [[CONV]], [[MUL4]]
91 ; CHECK-NEXT: [[CONV6:%.*]] = fpext float [[ADD5]] to double
92 ; CHECK-NEXT: [[TOBOOL:%.*]] = fcmp une float [[ADD]], 0.000000e+00
93 ; CHECK-NEXT: br i1 [[TOBOOL]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
95 ; CHECK-NEXT: br label [[IF_END]]
97 ; CHECK-NEXT: [[STOREMERGE:%.*]] = phi double [ [[CONV6]], [[IF_THEN]] ], [ [[CONV1]], [[ENTRY:%.*]] ]
98 ; CHECK-NEXT: [[E_0:%.*]] = phi double [ [[CONV1]], [[IF_THEN]] ], [ [[CONV6]], [[ENTRY]] ]
99 ; CHECK-NEXT: store double [[STOREMERGE]], ptr [[A:%.*]], align 8
100 ; CHECK-NEXT: [[CONV7:%.*]] = fptosi double [[E_0]] to i32
101 ; CHECK-NEXT: store i32 [[CONV7]], ptr [[B:%.*]], align 4
102 ; CHECK-NEXT: ret i32 undef
106 %0 = load i32, ptr %d, align 4
107 %conv = sitofp i32 %0 to float
108 %1 = load float, ptr %c
109 %sub = fsub float 0.000000e+00, %1
110 %mul = fmul float %sub, 0.000000e+00
111 %add = fadd float %conv, %mul
112 %conv1 = fpext float %add to double
113 %sub3 = fsub float 1.000000e+00, %1
114 %mul4 = fmul float %sub3, 0.000000e+00
115 %add5 = fadd float %conv, %mul4
116 %conv6 = fpext float %add5 to double
117 %tobool = fcmp une float %add, 0.000000e+00
118 br i1 %tobool, label %if.then, label %if.end
124 %storemerge = phi double [ %conv6, %if.then ], [ %conv1, %entry ]
125 %e.0 = phi double [ %conv1, %if.then ], [ %conv6, %entry ]
126 store double %storemerge, ptr %a, align 8
127 %conv7 = fptosi double %e.0 to i32
128 store i32 %conv7, ptr %b, align 4