1 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" 2 ; RUN: opt < %s -bb-vectorize -bb-vectorize-req-chain-depth=3 -bb-vectorize-ignore-target-info -instcombine -gvn -S | FileCheck %s 3 ; RUN: opt < %s -bb-vectorize -bb-vectorize-req-chain-depth=3 -bb-vectorize-search-limit=4 -bb-vectorize-ignore-target-info -instcombine -gvn -S | FileCheck %s -check-prefix=CHECK-SL4 4 5 define double @test1(double %A1, double %A2, double %B1, double %B2) { 6 ; CHECK-LABEL: @test1( 7 ; CHECK-SL4-LABEL: @test1( 8 ; CHECK-SL4-NOT: <2 x double> 9 ; CHECK: %X1.v.i1.1 = insertelement <2 x double> undef, double %B1, i32 0 10 ; CHECK: %X1.v.i1.2 = insertelement <2 x double> %X1.v.i1.1, double %B2, i32 1 11 ; CHECK: %X1.v.i0.1 = insertelement <2 x double> undef, double %A1, i32 0 12 ; CHECK: %X1.v.i0.2 = insertelement <2 x double> %X1.v.i0.1, double %A2, i32 1 13 %X1 = fsub double %A1, %B1 14 %X2 = fsub double %A2, %B2 15 ; CHECK: %X1 = fsub <2 x double> %X1.v.i0.2, %X1.v.i1.2 16 %Y1 = fmul double %X1, %A1 17 %Y2 = fmul double %X2, %A2 18 ; CHECK: %Y1 = fmul <2 x double> %X1, %X1.v.i0.2 19 %Z1 = fadd double %Y1, %B1 20 ; Here we have a dependency chain: the short search limit will not 21 ; see past this chain and so will not see the second part of the 22 ; pair to vectorize. 23 %mul41 = fmul double %Z1, %Y2 24 %sub48 = fsub double %Z1, %mul41 25 %mul62 = fmul double %Z1, %sub48 26 %sub69 = fsub double %Z1, %mul62 27 %mul83 = fmul double %Z1, %sub69 28 %sub90 = fsub double %Z1, %mul83 29 %mul104 = fmul double %Z1, %sub90 30 %sub111 = fsub double %Z1, %mul104 31 %mul125 = fmul double %Z1, %sub111 32 %sub132 = fsub double %Z1, %mul125 33 %mul146 = fmul double %Z1, %sub132 34 %sub153 = fsub double %Z1, %mul146 35 ; end of chain. 36 %Z2 = fadd double %Y2, %B2 37 ; CHECK: %Z1 = fadd <2 x double> %Y1, %X1.v.i1.2 38 %R1 = fdiv double %Z1, %Z2 39 %R = fmul double %R1, %sub153 40 ; CHECK: %Z1.v.r1 = extractelement <2 x double> %Z1, i32 0 41 ; CHECK: %Z1.v.r2 = extractelement <2 x double> %Z1, i32 1 42 ; CHECK: %R1 = fdiv double %Z1.v.r1, %Z1.v.r2 43 ret double %R 44 ; CHECK: ret double %R 45 } 46 47
