103e43f8eSQuentin Colombet; RUN: llc -O1 -mtriple=armv7s-apple-ios -mcpu=swift < %s -disable-adv-copy-opt=true | FileCheck -check-prefix=NOOPT --check-prefix=CHECK %s 203e43f8eSQuentin Colombet; RUN: llc -O1 -mtriple=armv7s-apple-ios -mcpu=swift < %s -disable-adv-copy-opt=false | FileCheck -check-prefix=OPT --check-prefix=CHECK %s 3d358e84dSQuentin Colombet; RUN: llc -O1 -mtriple=thumbv7s-apple-ios -mcpu=swift < %s -disable-adv-copy-opt=true | FileCheck -check-prefix=NOOPT --check-prefix=CHECK %s 4d358e84dSQuentin Colombet; RUN: llc -O1 -mtriple=thumbv7s-apple-ios -mcpu=swift < %s -disable-adv-copy-opt=false | FileCheck -check-prefix=OPT --check-prefix=CHECK %s 503e43f8eSQuentin Colombet 603e43f8eSQuentin Colombet; CHECK-LABEL: simpleVectorDiv 703e43f8eSQuentin Colombet; ABI: %A => r0, r1. 803e43f8eSQuentin Colombet; %B => r2, r3 903e43f8eSQuentin Colombet; ret => r0, r1 1003e43f8eSQuentin Colombet; We want to compute: 1103e43f8eSQuentin Colombet; r0 = r0 / r2 1203e43f8eSQuentin Colombet; r1 = r1 / r3 1303e43f8eSQuentin Colombet; 14*9e859806SMatthias Braun; NOOPT: vmov [[A:d[0-9]+]], r0, r1 15*9e859806SMatthias Braun; NOOPT-NEXT: vmov [[B:d[0-9]+]], r2, r3 1603e43f8eSQuentin Colombet; Move the low part of B into a register. 1703e43f8eSQuentin Colombet; Unfortunately, we cannot express that the 's' register is the low 1803e43f8eSQuentin Colombet; part of B, i.e., sIdx == BIdx x 2. E.g., B = d1, B_low = s2. 1903e43f8eSQuentin Colombet; NOOPT-NEXT: vmov [[B_LOW:r[0-9]+]], s{{[0-9]+}} 205a6d5bc1SAdam Nemet; NOOPT-NEXT: vmov [[B_HIGH:r[0-9]+]], s{{[0-9]+}} 21*9e859806SMatthias Braun; NOOPT-NEXT: vmov [[A_LOW:r[0-9]+]], s{{[0-9]+}} 225a6d5bc1SAdam Nemet; NOOPT-NEXT: vmov [[A_HIGH:r[0-9]+]], s{{[0-9]+}} 23*9e859806SMatthias Braun; NOOPT-NEXT: udiv [[RES_LOW:r[0-9]+]], [[A_LOW]], [[B_LOW]] 245a6d5bc1SAdam Nemet; NOOPT-NEXT: vmov.32 [[RES:d[0-9]+]][0], [[RES_LOW]] 25*9e859806SMatthias Braun; NOOPT-NEXT: udiv [[RES_HIGH:r[0-9]+]], [[A_HIGH]], [[B_HIGH]] 2603e43f8eSQuentin Colombet; NOOPT-NEXT: vmov.32 [[RES]][1], [[RES_HIGH]] 2703e43f8eSQuentin Colombet; NOOPT-NEXT: vmov r0, r1, [[RES]] 2803e43f8eSQuentin Colombet; NOOPT-NEXT: bx lr 2903e43f8eSQuentin Colombet; 3003e43f8eSQuentin Colombet; OPT-NOT: vmov 31*9e859806SMatthias Braun; OPT: udiv r1, r1, r3 32*9e859806SMatthias Braun; OPT-NEXT: udiv r0, r0, r2 3303e43f8eSQuentin Colombet; OPT-NEXT: bx lr 3403e43f8eSQuentin Colombetdefine <2 x i32> @simpleVectorDiv(<2 x i32> %A, <2 x i32> %B) nounwind { 3503e43f8eSQuentin Colombetentry: 3603e43f8eSQuentin Colombet %div = udiv <2 x i32> %A, %B 3703e43f8eSQuentin Colombet ret <2 x i32> %div 3803e43f8eSQuentin Colombet} 39