1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt < %s -basicaa -slp-vectorizer -S -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7 | FileCheck %s 3 4target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 5target triple = "x86_64-apple-darwin13.3.0" 6 7@a = common global double 0.000000e+00, align 8 8 9define i32 @fn1() { 10; CHECK-LABEL: @fn1( 11; CHECK-NEXT: entry: 12; CHECK-NEXT: [[INIT:%.*]] = load double, double* @a, align 8 13; CHECK-NEXT: br label [[LOOP:%.*]] 14; CHECK: loop: 15; CHECK-NEXT: [[PHI:%.*]] = phi double [ [[ADD2:%.*]], [[LOOP]] ], [ [[INIT]], [[ENTRY:%.*]] ] 16; CHECK-NEXT: [[POSTADD1_PHI:%.*]] = phi double [ [[POSTADD1:%.*]], [[LOOP]] ], [ [[INIT]], [[ENTRY]] ] 17; CHECK-NEXT: [[POSTADD2_PHI:%.*]] = phi double [ [[POSTADD2:%.*]], [[LOOP]] ], [ [[INIT]], [[ENTRY]] ] 18; CHECK-NEXT: [[ADD1:%.*]] = fadd double [[POSTADD1_PHI]], undef 19; CHECK-NEXT: [[ADD2]] = fadd double [[POSTADD2_PHI]], [[PHI]] 20; CHECK-NEXT: [[MUL2:%.*]] = fmul double [[ADD2]], 0.000000e+00 21; CHECK-NEXT: [[BINARYOP_B:%.*]] = fadd double [[POSTADD1_PHI]], [[MUL2]] 22; CHECK-NEXT: [[MUL1:%.*]] = fmul double [[ADD1]], 0.000000e+00 23; CHECK-NEXT: [[TMP:%.*]] = fadd double [[POSTADD2_PHI]], 0.000000e+00 24; CHECK-NEXT: [[BINARY_V:%.*]] = fadd double [[MUL1]], [[BINARYOP_B]] 25; CHECK-NEXT: [[POSTADD1]] = fadd double [[BINARY_V]], 0.000000e+00 26; CHECK-NEXT: [[POSTADD2]] = fadd double [[TMP]], 1.000000e+00 27; CHECK-NEXT: [[TOBOOL:%.*]] = fcmp une double [[POSTADD1]], 0.000000e+00 28; CHECK-NEXT: br i1 [[TOBOOL]], label [[EXIT:%.*]], label [[LOOP]] 29; CHECK: exit: 30; CHECK-NEXT: ret i32 1 31; 32entry: 33 %init = load double, double* @a, align 8 34 br label %loop 35 36loop: 37 %phi = phi double [ %add2, %loop ], [ %init, %entry ] 38 %postadd1_phi = phi double [ %postadd1, %loop ], [ %init, %entry ] 39 %postadd2_phi = phi double [ %postadd2, %loop ], [ %init, %entry ] 40 %add1 = fadd double %postadd1_phi, undef 41 %add2 = fadd double %postadd2_phi, %phi 42 %mul2 = fmul double %add2, 0.000000e+00 43 %binaryop_B = fadd double %postadd1_phi, %mul2 44 %mul1 = fmul double %add1, 0.000000e+00 45 %tmp = fadd double %postadd2_phi, 0.000000e+00 46 47 ; tryToVectorize() starts with this binary instruction. 48 ; At the same time vectorization wraps around the loop, vectorizes 49 ; postadd1/2 and eventually binary_V and tmp. So binary_V itself is replaced 50 ; with a vector instruction. 51 ; The SLPVectorizer crashed because it tried to use binary_V 52 ; after vectorization to re-arrange instructions. 53 %binary_V = fadd double %mul1, %binaryop_B 54 55 %postadd1 = fadd double %binary_V, 0.000000e+00 56 %postadd2 = fadd double %tmp, 1.000000e+00 57 %tobool = fcmp une double %postadd1, 0.000000e+00 58 br i1 %tobool, label %exit, label %loop 59 60exit: 61 ret i32 1 62} 63 64 65