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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt < %s -passes=slp-vectorizer,dce -S -mtriple=i386-apple-macosx10.8.0 -mcpu=corei7-avx | FileCheck %s3 4target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128-n8:16:32-S128"5target triple = "i386-apple-macosx10.8.0"6 7; int foo(ptr A, int n, int m) {8; double sum = 0, v1 = 2, v0 = 3;9; for (int i=0; i < n; ++i)10; sum += 7*A[i*2] + 7*A[i*2+1];11; return sum;12; }13 14define i32 @reduce(ptr nocapture %A, i32 %n, i32 %m) {15; CHECK-LABEL: @reduce(16; CHECK-NEXT: entry:17; CHECK-NEXT: [[CMP13:%.*]] = icmp sgt i32 [[N:%.*]], 018; CHECK-NEXT: br i1 [[CMP13]], label [[FOR_BODY:%.*]], label [[FOR_END:%.*]]19; CHECK: for.body:20; CHECK-NEXT: [[I_015:%.*]] = phi i32 [ [[INC:%.*]], [[FOR_BODY]] ], [ 0, [[ENTRY:%.*]] ]21; CHECK-NEXT: [[SUM_014:%.*]] = phi double [ [[ADD6:%.*]], [[FOR_BODY]] ], [ 0.000000e+00, [[ENTRY]] ]22; CHECK-NEXT: [[MUL:%.*]] = shl nsw i32 [[I_015]], 123; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds double, ptr [[A:%.*]], i32 [[MUL]]24; CHECK-NEXT: [[TMP0:%.*]] = load <2 x double>, ptr [[ARRAYIDX]], align 425; CHECK-NEXT: [[TMP1:%.*]] = fmul <2 x double> [[TMP0]], splat (double 7.000000e+00)26; CHECK-NEXT: [[TMP2:%.*]] = extractelement <2 x double> [[TMP1]], i32 027; CHECK-NEXT: [[TMP3:%.*]] = extractelement <2 x double> [[TMP1]], i32 128; CHECK-NEXT: [[ADD5:%.*]] = fadd double [[TMP2]], [[TMP3]]29; CHECK-NEXT: [[ADD6]] = fadd double [[SUM_014]], [[ADD5]]30; CHECK-NEXT: [[INC]] = add nsw i32 [[I_015]], 131; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i32 [[INC]], [[N]]32; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_COND_FOR_END_CRIT_EDGE:%.*]], label [[FOR_BODY]]33; CHECK: for.cond.for.end_crit_edge:34; CHECK-NEXT: [[PHITMP:%.*]] = fptosi double [[ADD6]] to i3235; CHECK-NEXT: br label [[FOR_END]]36; CHECK: for.end:37; CHECK-NEXT: [[SUM_0_LCSSA:%.*]] = phi i32 [ [[PHITMP]], [[FOR_COND_FOR_END_CRIT_EDGE]] ], [ 0, [[ENTRY]] ]38; CHECK-NEXT: ret i32 [[SUM_0_LCSSA]]39;40entry:41 %cmp13 = icmp sgt i32 %n, 042 br i1 %cmp13, label %for.body, label %for.end43 44for.body: ; preds = %entry, %for.body45 %i.015 = phi i32 [ %inc, %for.body ], [ 0, %entry ]46 %sum.014 = phi double [ %add6, %for.body ], [ 0.000000e+00, %entry ]47 %mul = shl nsw i32 %i.015, 148 %arrayidx = getelementptr inbounds double, ptr %A, i32 %mul49 %0 = load double, ptr %arrayidx, align 450 %mul1 = fmul double %0, 7.000000e+0051 %add12 = or disjoint i32 %mul, 152 %arrayidx3 = getelementptr inbounds double, ptr %A, i32 %add1253 %1 = load double, ptr %arrayidx3, align 454 %mul4 = fmul double %1, 7.000000e+0055 %add5 = fadd double %mul1, %mul456 %add6 = fadd double %sum.014, %add557 %inc = add nsw i32 %i.015, 158 %exitcond = icmp eq i32 %inc, %n59 br i1 %exitcond, label %for.cond.for.end_crit_edge, label %for.body60 61for.cond.for.end_crit_edge: ; preds = %for.body62 %phitmp = fptosi double %add6 to i3263 br label %for.end64 65for.end: ; preds = %for.cond.for.end_crit_edge, %entry66 %sum.0.lcssa = phi i32 [ %phitmp, %for.cond.for.end_crit_edge ], [ 0, %entry ]67 ret i32 %sum.0.lcssa68}69 70; PR43948 - https://bugs.llvm.org/show_bug.cgi?id=4394871; The extra use of a non-vectorized element of a reduction must not be killed.72 73define i32 @horiz_max_multiple_uses(ptr %x, ptr %p) {74; CHECK-LABEL: @horiz_max_multiple_uses(75; CHECK-NEXT: [[X4:%.*]] = getelementptr [32 x i32], ptr [[X:%.*]], i64 0, i64 476; CHECK-NEXT: [[X5:%.*]] = getelementptr [32 x i32], ptr [[X]], i64 0, i64 577; CHECK-NEXT: [[TMP1:%.*]] = load <4 x i32>, ptr [[X]], align 478; CHECK-NEXT: [[T4:%.*]] = load i32, ptr [[X4]], align 479; CHECK-NEXT: [[T5:%.*]] = load i32, ptr [[X5]], align 480; CHECK-NEXT: [[TMP2:%.*]] = call i32 @llvm.vector.reduce.smax.v4i32(<4 x i32> [[TMP1]])81; CHECK-NEXT: [[MAX_ROOT_CMP:%.*]] = icmp sgt i32 [[TMP2]], [[T4]]82; CHECK-NEXT: [[MAX_ROOT_SEL:%.*]] = select i1 [[MAX_ROOT_CMP]], i32 [[TMP2]], i32 [[T4]]83; CHECK-NEXT: [[C012345:%.*]] = icmp sgt i32 [[MAX_ROOT_SEL]], [[T5]]84; CHECK-NEXT: [[T17:%.*]] = select i1 [[C012345]], i32 [[MAX_ROOT_SEL]], i32 [[T5]]85; CHECK-NEXT: [[THREE_OR_FOUR:%.*]] = select i1 [[MAX_ROOT_CMP]], i32 3, i32 486; CHECK-NEXT: store i32 [[THREE_OR_FOUR]], ptr [[P:%.*]], align 887; CHECK-NEXT: ret i32 [[T17]]88;89 %x1 = getelementptr [32 x i32], ptr %x, i64 0, i64 190 %x2 = getelementptr [32 x i32], ptr %x, i64 0, i64 291 %x3 = getelementptr [32 x i32], ptr %x, i64 0, i64 392 %x4 = getelementptr [32 x i32], ptr %x, i64 0, i64 493 %x5 = getelementptr [32 x i32], ptr %x, i64 0, i64 594 95 %t0 = load i32, ptr %x96 %t1 = load i32, ptr %x197 %t2 = load i32, ptr %x298 %t3 = load i32, ptr %x399 %t4 = load i32, ptr %x4100 %t5 = load i32, ptr %x5101 102 %c01 = icmp sgt i32 %t0, %t1103 %s5 = select i1 %c01, i32 %t0, i32 %t1104 %c012 = icmp sgt i32 %s5, %t2105 %t8 = select i1 %c012, i32 %s5, i32 %t2106 %c0123 = icmp sgt i32 %t8, %t3107 %rdx4 = select i1 %c0123, i32 %t8, i32 %t3108 %MAX_ROOT_CMP = icmp sgt i32 %rdx4, %t4109 %MAX_ROOT_SEL = select i1 %MAX_ROOT_CMP, i32 %rdx4, i32 %t4110 %c012345 = icmp sgt i32 %MAX_ROOT_SEL, %t5111 %t17 = select i1 %c012345, i32 %MAX_ROOT_SEL, i32 %t5112 %three_or_four = select i1 %MAX_ROOT_CMP, i32 3, i32 4113 store i32 %three_or_four, ptr %p, align 8114 ret i32 %t17115}116 117; This is a miscompile (see the undef operand) and/or test for invalid IR.118 119define i1 @bad_insertpoint_rdx(ptr %p) #0 {120; CHECK-LABEL: @bad_insertpoint_rdx(121; CHECK-NEXT: [[T0:%.*]] = load i32, ptr [[P:%.*]], align 16122; CHECK-NEXT: [[CMP23:%.*]] = icmp sgt i32 [[T0]], 0123; CHECK-NEXT: [[SPEC_SELECT:%.*]] = select i1 [[CMP23]], i32 [[T0]], i32 0124; CHECK-NEXT: [[ARRAYIDX22_1:%.*]] = getelementptr inbounds [8 x i32], ptr [[P]], i64 0, i64 1125; CHECK-NEXT: [[T1:%.*]] = load i32, ptr [[ARRAYIDX22_1]], align 4126; CHECK-NEXT: [[CMP23_1:%.*]] = icmp sgt i32 [[T1]], [[SPEC_SELECT]]127; CHECK-NEXT: [[SPEC_STORE_SELECT87:%.*]] = zext i1 [[CMP23_1]] to i32128; CHECK-NEXT: [[SPEC_SELECT88:%.*]] = select i1 [[CMP23_1]], i32 [[T1]], i32 [[SPEC_SELECT]]129; CHECK-NEXT: [[CMP23_2:%.*]] = icmp sgt i32 [[SPEC_STORE_SELECT87]], [[SPEC_SELECT88]]130; CHECK-NEXT: ret i1 [[CMP23_2]]131;132 %t0 = load i32, ptr %p, align 16133 %cmp23 = icmp sgt i32 %t0, 0134 %spec.select = select i1 %cmp23, i32 %t0, i32 0135 %arrayidx22.1 = getelementptr inbounds [8 x i32], ptr %p, i64 0, i64 1136 %t1 = load i32, ptr %arrayidx22.1, align 4137 %cmp23.1 = icmp sgt i32 %t1, %spec.select138 %spec.store.select87 = zext i1 %cmp23.1 to i32139 %spec.select88 = select i1 %cmp23.1, i32 %t1, i32 %spec.select140 %cmp23.2 = icmp sgt i32 %spec.store.select87, %spec.select88141 ret i1 %cmp23.2142}143