mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-16 11:30:51 +00:00
c3f2ad0879
instruction from ARMInstrInfo to ARMBaseInstrInfo. That way, thumb mode can also benefit from the advanced copy optimization. <rdar://problem/12702965> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216274 91177308-0d34-0410-b5e6-96231b3b80d8
39 lines
1.6 KiB
LLVM
39 lines
1.6 KiB
LLVM
; RUN: llc -O1 -mtriple=armv7s-apple-ios -mcpu=swift < %s -disable-adv-copy-opt=true | FileCheck -check-prefix=NOOPT --check-prefix=CHECK %s
|
|
; RUN: llc -O1 -mtriple=armv7s-apple-ios -mcpu=swift < %s -disable-adv-copy-opt=false | FileCheck -check-prefix=OPT --check-prefix=CHECK %s
|
|
; RUN: llc -O1 -mtriple=thumbv7s-apple-ios -mcpu=swift < %s -disable-adv-copy-opt=true | FileCheck -check-prefix=NOOPT --check-prefix=CHECK %s
|
|
; RUN: llc -O1 -mtriple=thumbv7s-apple-ios -mcpu=swift < %s -disable-adv-copy-opt=false | FileCheck -check-prefix=OPT --check-prefix=CHECK %s
|
|
|
|
; CHECK-LABEL: simpleVectorDiv
|
|
; ABI: %A => r0, r1.
|
|
; %B => r2, r3
|
|
; ret => r0, r1
|
|
; We want to compute:
|
|
; r0 = r0 / r2
|
|
; r1 = r1 / r3
|
|
;
|
|
; NOOPT: vmov [[B:d[0-9]+]], r2, r3
|
|
; NOOPT-NEXT: vmov [[A:d[0-9]+]], r0, r1
|
|
; Move the low part of B into a register.
|
|
; Unfortunately, we cannot express that the 's' register is the low
|
|
; part of B, i.e., sIdx == BIdx x 2. E.g., B = d1, B_low = s2.
|
|
; NOOPT-NEXT: vmov [[B_LOW:r[0-9]+]], s{{[0-9]+}}
|
|
; NOOPT-NEXT: vmov [[A_LOW:r[0-9]+]], s{{[0-9]+}}
|
|
; NOOPT-NEXT: udiv [[RES_LOW:r[0-9]+]], [[A_LOW]], [[B_LOW]]
|
|
; NOOPT-NEXT: vmov [[B_HIGH:r[0-9]+]], s{{[0-9]+}}
|
|
; NOOPT-NEXT: vmov [[A_HIGH:r[0-9]+]], s{{[0-9]+}}
|
|
; NOOPT-NEXT: udiv [[RES_HIGH:r[0-9]+]], [[A_HIGH]], [[B_HIGH]]
|
|
; NOOPT-NEXT: vmov.32 [[RES:d[0-9]+]][0], [[RES_LOW]]
|
|
; NOOPT-NEXT: vmov.32 [[RES]][1], [[RES_HIGH]]
|
|
; NOOPT-NEXT: vmov r0, r1, [[RES]]
|
|
; NOOPT-NEXT: bx lr
|
|
;
|
|
; OPT-NOT: vmov
|
|
; OPT: udiv r0, r0, r2
|
|
; OPT-NEXT: udiv r1, r1, r3
|
|
; OPT-NEXT: bx lr
|
|
define <2 x i32> @simpleVectorDiv(<2 x i32> %A, <2 x i32> %B) nounwind {
|
|
entry:
|
|
%div = udiv <2 x i32> %A, %B
|
|
ret <2 x i32> %div
|
|
}
|