1*9880d681SAndroid Build Coastguard Worker; RUN: llc -O1 -mtriple=armv7s-apple-ios -mcpu=swift < %s -disable-adv-copy-opt=true | FileCheck -check-prefix=NOOPT --check-prefix=CHECK %s 2*9880d681SAndroid Build Coastguard Worker; RUN: llc -O1 -mtriple=armv7s-apple-ios -mcpu=swift < %s -disable-adv-copy-opt=false | FileCheck -check-prefix=OPT --check-prefix=CHECK %s 3*9880d681SAndroid Build Coastguard Worker; RUN: llc -O1 -mtriple=thumbv7s-apple-ios -mcpu=swift < %s -disable-adv-copy-opt=true | FileCheck -check-prefix=NOOPT --check-prefix=CHECK %s 4*9880d681SAndroid Build Coastguard Worker; RUN: llc -O1 -mtriple=thumbv7s-apple-ios -mcpu=swift < %s -disable-adv-copy-opt=false | FileCheck -check-prefix=OPT --check-prefix=CHECK %s 5*9880d681SAndroid Build Coastguard Worker 6*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: simpleVectorDiv 7*9880d681SAndroid Build Coastguard Worker; ABI: %A => r0, r1. 8*9880d681SAndroid Build Coastguard Worker; %B => r2, r3 9*9880d681SAndroid Build Coastguard Worker; ret => r0, r1 10*9880d681SAndroid Build Coastguard Worker; We want to compute: 11*9880d681SAndroid Build Coastguard Worker; r0 = r0 / r2 12*9880d681SAndroid Build Coastguard Worker; r1 = r1 / r3 13*9880d681SAndroid Build Coastguard Worker; 14*9880d681SAndroid Build Coastguard Worker; NOOPT: vmov [[A:d[0-9]+]], r0, r1 15*9880d681SAndroid Build Coastguard Worker; NOOPT-NEXT: vmov [[B:d[0-9]+]], r2, r3 16*9880d681SAndroid Build Coastguard Worker; Move the low part of B into a register. 17*9880d681SAndroid Build Coastguard Worker; Unfortunately, we cannot express that the 's' register is the low 18*9880d681SAndroid Build Coastguard Worker; part of B, i.e., sIdx == BIdx x 2. E.g., B = d1, B_low = s2. 19*9880d681SAndroid Build Coastguard Worker; NOOPT-NEXT: vmov [[B_LOW:r[0-9]+]], s{{[0-9]+}} 20*9880d681SAndroid Build Coastguard Worker; NOOPT-NEXT: vmov [[B_HIGH:r[0-9]+]], s{{[0-9]+}} 21*9880d681SAndroid Build Coastguard Worker; NOOPT-NEXT: vmov [[A_LOW:r[0-9]+]], s{{[0-9]+}} 22*9880d681SAndroid Build Coastguard Worker; NOOPT-NEXT: vmov [[A_HIGH:r[0-9]+]], s{{[0-9]+}} 23*9880d681SAndroid Build Coastguard Worker; NOOPT-NEXT: udiv [[RES_LOW:r[0-9]+]], [[A_LOW]], [[B_LOW]] 24*9880d681SAndroid Build Coastguard Worker; NOOPT-NEXT: vmov.32 [[RES:d[0-9]+]][0], [[RES_LOW]] 25*9880d681SAndroid Build Coastguard Worker; NOOPT-NEXT: udiv [[RES_HIGH:r[0-9]+]], [[A_HIGH]], [[B_HIGH]] 26*9880d681SAndroid Build Coastguard Worker; NOOPT-NEXT: vmov.32 [[RES]][1], [[RES_HIGH]] 27*9880d681SAndroid Build Coastguard Worker; NOOPT-NEXT: vmov r0, r1, [[RES]] 28*9880d681SAndroid Build Coastguard Worker; NOOPT-NEXT: bx lr 29*9880d681SAndroid Build Coastguard Worker; 30*9880d681SAndroid Build Coastguard Worker; OPT-NOT: vmov 31*9880d681SAndroid Build Coastguard Worker; OPT: udiv r1, r1, r3 32*9880d681SAndroid Build Coastguard Worker; OPT-NEXT: udiv r0, r0, r2 33*9880d681SAndroid Build Coastguard Worker; OPT-NEXT: bx lr 34*9880d681SAndroid Build Coastguard Workerdefine <2 x i32> @simpleVectorDiv(<2 x i32> %A, <2 x i32> %B) nounwind { 35*9880d681SAndroid Build Coastguard Workerentry: 36*9880d681SAndroid Build Coastguard Worker %div = udiv <2 x i32> %A, %B 37*9880d681SAndroid Build Coastguard Worker ret <2 x i32> %div 38*9880d681SAndroid Build Coastguard Worker} 39