; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc --arm-memtransfer-tploop=allow -mtriple=thumbv8.1m.main-none-none-eabi -mattr=+mve.fp -verify-machineinstrs -tail-predication=enabled -o - %s | FileCheck %s
define void @test_memcpy(ptr nocapture %x, ptr nocapture readonly %y, i32 %n, i32 %m) {
; CHECK-LABEL: test_memcpy:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: cmp r2, #1
; CHECK-NEXT: it lt
; CHECK-NEXT: bxlt lr
; CHECK-NEXT: .LBB0_1: @ %for.body.preheader
; CHECK-NEXT: .save {r4, r5, r6, r7, lr}
; CHECK-NEXT: push {r4, r5, r6, r7, lr}
; CHECK-NEXT: lsl.w r12, r3, #2
; CHECK-NEXT: movs r7, #0
; CHECK-NEXT: b .LBB0_2
; CHECK-NEXT: .LBB0_2: @ %for.body
; CHECK-NEXT: @ =>This Loop Header: Depth=1
; CHECK-NEXT: @ Child Loop BB0_4 Depth 2
; CHECK-NEXT: adds r4, r1, r7
; CHECK-NEXT: adds r5, r0, r7
; CHECK-NEXT: wlstp.8 lr, r3, .LBB0_3
; CHECK-NEXT: b .LBB0_4
; CHECK-NEXT: .LBB0_3: @ %for.body
; CHECK-NEXT: @ in Loop: Header=BB0_2 Depth=1
; CHECK-NEXT: add r7, r12
; CHECK-NEXT: subs r2, #1
; CHECK-NEXT: beq .LBB0_5
; CHECK-NEXT: b .LBB0_2
; CHECK-NEXT: .LBB0_4: @ Parent Loop BB0_2 Depth=1
; CHECK-NEXT: @ => This Inner Loop Header: Depth=2
; CHECK-NEXT: vldrb.u8 q0, [r4], #16
; CHECK-NEXT: vstrb.8 q0, [r5], #16
; CHECK-NEXT: letp lr, .LBB0_4
; CHECK-NEXT: b .LBB0_3
; CHECK-NEXT: .LBB0_5:
; CHECK-NEXT: pop.w {r4, r5, r6, r7, lr}
; CHECK-NEXT: bx lr
entry:
%cmp8 = icmp sgt i32 %n, 0
br i1 %cmp8, label %for.body, label %for.cond.cleanup
for.cond.cleanup: ; preds = %for.body, %entry
ret void
for.body: ; preds = %entry, %for.body
%i.011 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
%x.addr.010 = phi ptr [ %add.ptr, %for.body ], [ %x, %entry ]
%y.addr.09 = phi ptr [ %add.ptr1, %for.body ], [ %y, %entry ]
tail call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x.addr.010, ptr align 4 %y.addr.09, i32 %m, i1 false)
%add.ptr = getelementptr inbounds i32, ptr %x.addr.010, i32 %m
%add.ptr1 = getelementptr inbounds i32, ptr %y.addr.09, i32 %m
%inc = add nuw nsw i32 %i.011, 1
%exitcond.not = icmp eq i32 %inc, %n
br i1 %exitcond.not, label %for.cond.cleanup, label %for.body
}
define void @test_memset(ptr nocapture %x, i32 %n, i32 %m) {
; CHECK-LABEL: test_memset:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: cmp r1, #1
; CHECK-NEXT: it lt
; CHECK-NEXT: bxlt lr
; CHECK-NEXT: .LBB1_1: @ %for.body.preheader
; CHECK-NEXT: .save {r4, lr}
; CHECK-NEXT: push {r4, lr}
; CHECK-NEXT: lsl.w r12, r2, #2
; CHECK-NEXT: vmov.i32 q0, #0x0
; CHECK-NEXT: b .LBB1_2
; CHECK-NEXT: .LBB1_2: @ %for.body
; CHECK-NEXT: @ =>This Loop Header: Depth=1
; CHECK-NEXT: @ Child Loop BB1_4 Depth 2
; CHECK-NEXT: mov r4, r0
; CHECK-NEXT: wlstp.8 lr, r2, .LBB1_3
; CHECK-NEXT: b .LBB1_4
; CHECK-NEXT: .LBB1_3: @ %for.body
; CHECK-NEXT: @ in Loop: Header=BB1_2 Depth=1
; CHECK-NEXT: add r0, r12
; CHECK-NEXT: subs r1, #1
; CHECK-NEXT: beq .LBB1_5
; CHECK-NEXT: b .LBB1_2
; CHECK-NEXT: .LBB1_4: @ Parent Loop BB1_2 Depth=1
; CHECK-NEXT: @ => This Inner Loop Header: Depth=2
; CHECK-NEXT: vstrb.8 q0, [r4], #16
; CHECK-NEXT: letp lr, .LBB1_4
; CHECK-NEXT: b .LBB1_3
; CHECK-NEXT: .LBB1_5:
; CHECK-NEXT: pop.w {r4, lr}
; CHECK-NEXT: bx lr
entry:
%cmp5 = icmp sgt i32 %n, 0
br i1 %cmp5, label %for.body, label %for.cond.cleanup
for.cond.cleanup: ; preds = %for.body, %entry
ret void
for.body: ; preds = %entry, %for.body
%i.07 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
%x.addr.06 = phi ptr [ %add.ptr, %for.body ], [ %x, %entry ]
tail call void @llvm.memset.p0.i32(ptr align 4 %x.addr.06, i8 0, i32 %m, i1 false)
%add.ptr = getelementptr inbounds i32, ptr %x.addr.06, i32 %m
%inc = add nuw nsw i32 %i.07, 1
%exitcond.not = icmp eq i32 %inc, %n
br i1 %exitcond.not, label %for.cond.cleanup, label %for.body
}
define void @test_memmove(ptr nocapture %x, ptr nocapture readonly %y, i32 %n, i32 %m) {
; CHECK-LABEL: test_memmove:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: cmp r2, #1
; CHECK-NEXT: it lt
; CHECK-NEXT: bxlt lr
; CHECK-NEXT: .LBB2_1: @ %for.body.preheader
; CHECK-NEXT: .save {r4, r5, r6, r7, r8, r9, lr}
; CHECK-NEXT: push.w {r4, r5, r6, r7, r8, r9, lr}
; CHECK-NEXT: .pad #4
; CHECK-NEXT: sub sp, #4
; CHECK-NEXT: mov r8, r3
; CHECK-NEXT: mov r5, r2
; CHECK-NEXT: mov r9, r1
; CHECK-NEXT: mov r7, r0
; CHECK-NEXT: lsls r4, r3, #2
; CHECK-NEXT: movs r6, #0
; CHECK-NEXT: .LBB2_2: @ %for.body
; CHECK-NEXT: @ =>This Inner Loop Header: Depth=1
; CHECK-NEXT: adds r0, r7, r6
; CHECK-NEXT: add.w r1, r9, r6
; CHECK-NEXT: mov r2, r8
; CHECK-NEXT: bl __aeabi_memmove4
; CHECK-NEXT: add r6, r4
; CHECK-NEXT: subs r5, #1
; CHECK-NEXT: bne .LBB2_2
; CHECK-NEXT: @ %bb.3:
; CHECK-NEXT: add sp, #4
; CHECK-NEXT: pop.w {r4, r5, r6, r7, r8, r9, lr}
; CHECK-NEXT: bx lr
entry:
%cmp8 = icmp sgt i32 %n, 0
br i1 %cmp8, label %for.body, label %for.cond.cleanup
for.cond.cleanup: ; preds = %for.body, %entry
ret void
for.body: ; preds = %entry, %for.body
%i.011 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
%x.addr.010 = phi ptr [ %add.ptr, %for.body ], [ %x, %entry ]
%y.addr.09 = phi ptr [ %add.ptr1, %for.body ], [ %y, %entry ]
tail call void @llvm.memmove.p0.p0.i32(ptr align 4 %x.addr.010, ptr align 4 %y.addr.09, i32 %m, i1 false)
%add.ptr = getelementptr inbounds i32, ptr %x.addr.010, i32 %m
%add.ptr1 = getelementptr inbounds i32, ptr %y.addr.09, i32 %m
%inc = add nuw nsw i32 %i.011, 1
%exitcond.not = icmp eq i32 %inc, %n
br i1 %exitcond.not, label %for.cond.cleanup, label %for.body
}
define void @test_memcpy16(ptr nocapture %x, ptr nocapture readonly %y, i32 %n) {
; CHECK-LABEL: test_memcpy16:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: .save {r4, lr}
; CHECK-NEXT: push {r4, lr}
; CHECK-NEXT: cmp r2, #1
; CHECK-NEXT: it lt
; CHECK-NEXT: poplt {r4, pc}
; CHECK-NEXT: .LBB3_1: @ %for.body.preheader
; CHECK-NEXT: dls lr, r2
; CHECK-NEXT: .LBB3_2: @ %for.body
; CHECK-NEXT: @ =>This Inner Loop Header: Depth=1
; CHECK-NEXT: ldm.w r1, {r2, r3, r12}
; CHECK-NEXT: ldr r4, [r1, #12]
; CHECK-NEXT: adds r1, #64
; CHECK-NEXT: stm.w r0, {r2, r3, r12}
; CHECK-NEXT: str r4, [r0, #12]
; CHECK-NEXT: adds r0, #64
; CHECK-NEXT: le lr, .LBB3_2
; CHECK-NEXT: @ %bb.3: @ %for.cond.cleanup
; CHECK-NEXT: pop {r4, pc}
entry:
%cmp6 = icmp sgt i32 %n, 0
br i1 %cmp6, label %for.body, label %for.cond.cleanup
for.cond.cleanup: ; preds = %for.body, %entry
ret void
for.body: ; preds = %entry, %for.body
%i.09 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
%x.addr.08 = phi ptr [ %add.ptr, %for.body ], [ %x, %entry ]
%y.addr.07 = phi ptr [ %add.ptr1, %for.body ], [ %y, %entry ]
tail call void @llvm.memcpy.p0.p0.i32(ptr nonnull align 4 dereferenceable(16) %x.addr.08, ptr nonnull align 4 dereferenceable(16) %y.addr.07, i32 16, i1 false)
%add.ptr = getelementptr inbounds i32, ptr %x.addr.08, i32 16
%add.ptr1 = getelementptr inbounds i32, ptr %y.addr.07, i32 16
%inc = add nuw nsw i32 %i.09, 1
%exitcond.not = icmp eq i32 %inc, %n
br i1 %exitcond.not, label %for.cond.cleanup, label %for.body
}
define void @test_memset16(ptr nocapture %x, i32 %n) {
; CHECK-LABEL: test_memset16:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: .save {r7, lr}
; CHECK-NEXT: push {r7, lr}
; CHECK-NEXT: cmp r1, #1
; CHECK-NEXT: it lt
; CHECK-NEXT: poplt {r7, pc}
; CHECK-NEXT: .LBB4_1: @ %for.body.preheader
; CHECK-NEXT: dls lr, r1
; CHECK-NEXT: movs r1, #0
; CHECK-NEXT: .LBB4_2: @ %for.body
; CHECK-NEXT: @ =>This Inner Loop Header: Depth=1
; CHECK-NEXT: strd r1, r1, [r0]
; CHECK-NEXT: strd r1, r1, [r0, #8]
; CHECK-NEXT: adds r0, #64
; CHECK-NEXT: le lr, .LBB4_2
; CHECK-NEXT: @ %bb.3: @ %for.cond.cleanup
; CHECK-NEXT: pop {r7, pc}
entry:
%cmp4 = icmp sgt i32 %n, 0
br i1 %cmp4, label %for.body, label %for.cond.cleanup
for.cond.cleanup: ; preds = %for.body, %entry
ret void
for.body: ; preds = %entry, %for.body
%i.06 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
%x.addr.05 = phi ptr [ %add.ptr, %for.body ], [ %x, %entry ]
tail call void @llvm.memset.p0.i32(ptr nonnull align 4 dereferenceable(16) %x.addr.05, i8 0, i32 16, i1 false)
%add.ptr = getelementptr inbounds i32, ptr %x.addr.05, i32 16
%inc = add nuw nsw i32 %i.06, 1
%exitcond.not = icmp eq i32 %inc, %n
br i1 %exitcond.not, label %for.cond.cleanup, label %for.body
}
define void @test_memmove16(ptr nocapture %x, ptr nocapture readonly %y, i32 %n) {
; CHECK-LABEL: test_memmove16:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: .save {r4, lr}
; CHECK-NEXT: push {r4, lr}
; CHECK-NEXT: cmp r2, #1
; CHECK-NEXT: it lt
; CHECK-NEXT: poplt {r4, pc}
; CHECK-NEXT: .LBB5_1: @ %for.body.preheader
; CHECK-NEXT: dls lr, r2
; CHECK-NEXT: .LBB5_2: @ %for.body
; CHECK-NEXT: @ =>This Inner Loop Header: Depth=1
; CHECK-NEXT: ldm.w r1, {r2, r3, r12}
; CHECK-NEXT: ldr r4, [r1, #12]
; CHECK-NEXT: adds r1, #64
; CHECK-NEXT: stm.w r0, {r2, r3, r12}
; CHECK-NEXT: str r4, [r0, #12]
; CHECK-NEXT: adds r0, #64
; CHECK-NEXT: le lr, .LBB5_2
; CHECK-NEXT: @ %bb.3: @ %for.cond.cleanup
; CHECK-NEXT: pop {r4, pc}
entry:
%cmp6 = icmp sgt i32 %n, 0
br i1 %cmp6, label %for.body, label %for.cond.cleanup
for.cond.cleanup: ; preds = %for.body, %entry
ret void
for.body: ; preds = %entry, %for.body
%i.09 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
%x.addr.08 = phi ptr [ %add.ptr, %for.body ], [ %x, %entry ]
%y.addr.07 = phi ptr [ %add.ptr1, %for.body ], [ %y, %entry ]
tail call void @llvm.memmove.p0.p0.i32(ptr nonnull align 4 dereferenceable(16) %x.addr.08, ptr nonnull align 4 dereferenceable(16) %y.addr.07, i32 16, i1 false)
%add.ptr = getelementptr inbounds i32, ptr %x.addr.08, i32 16
%add.ptr1 = getelementptr inbounds i32, ptr %y.addr.07, i32 16
%inc = add nuw nsw i32 %i.09, 1
%exitcond.not = icmp eq i32 %inc, %n
br i1 %exitcond.not, label %for.cond.cleanup, label %for.body
}
define void @test_memset_preheader(ptr %x, ptr %y, i32 %n) {
; CHECK-LABEL: test_memset_preheader:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: .save {r4, lr}
; CHECK-NEXT: push {r4, lr}
; CHECK-NEXT: cbz r2, .LBB6_5
; CHECK-NEXT: @ %bb.1: @ %prehead
; CHECK-NEXT: vmov.i32 q0, #0x0
; CHECK-NEXT: mov r4, r0
; CHECK-NEXT: wlstp.8 lr, r2, .LBB6_3
; CHECK-NEXT: .LBB6_2: @ =>This Inner Loop Header: Depth=1
; CHECK-NEXT: vstrb.8 q0, [r4], #16
; CHECK-NEXT: letp lr, .LBB6_2
; CHECK-NEXT: .LBB6_3: @ %prehead
; CHECK-NEXT: dls lr, r2
; CHECK-NEXT: mov r3, r0
; CHECK-NEXT: .LBB6_4: @ %for.body
; CHECK-NEXT: @ =>This Inner Loop Header: Depth=1
; CHECK-NEXT: ldrb r4, [r3], #1
; CHECK-NEXT: strb r4, [r1], #1
; CHECK-NEXT: le lr, .LBB6_4
; CHECK-NEXT: .LBB6_5: @ %for.cond.cleanup
; CHECK-NEXT: vmov.i32 q0, #0x0
; CHECK-NEXT: wlstp.8 lr, r2, .LBB6_7
; CHECK-NEXT: .LBB6_6: @ =>This Inner Loop Header: Depth=1
; CHECK-NEXT: vstrb.8 q0, [r0], #16
; CHECK-NEXT: letp lr, .LBB6_6
; CHECK-NEXT: .LBB6_7: @ %for.cond.cleanup
; CHECK-NEXT: pop {r4, pc}
entry:
%cmp6 = icmp ne i32 %n, 0
br i1 %cmp6, label %prehead, label %for.cond.cleanup
prehead:
call void @llvm.memset.p0.i32(ptr %x, i8 0, i32 %n, i1 false)
br label %for.body
for.body: ; preds = %entry, %for.body
%i.09 = phi i32 [ %inc, %for.body ], [ 0, %prehead ]
%x.addr.08 = phi ptr [ %add.ptr, %for.body ], [ %x, %prehead ]
%y.addr.07 = phi ptr [ %add.ptr1, %for.body ], [ %y, %prehead ]
%add.ptr = getelementptr inbounds i8, ptr %x.addr.08, i32 1
%add.ptr1 = getelementptr inbounds i8, ptr %y.addr.07, i32 1
%l = load i8, ptr %x.addr.08
store i8 %l, ptr %y.addr.07
%inc = add nuw nsw i32 %i.09, 1
%exitcond.not = icmp eq i32 %inc, %n
br i1 %exitcond.not, label %for.cond.cleanup, label %for.body
for.cond.cleanup: ; preds = %for.body, %entry
call void @llvm.memset.p0.i32(ptr %x, i8 0, i32 %n, i1 false)
ret void
}
declare void @llvm.memcpy.p0.p0.i32(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i32, i1 immarg)
declare void @llvm.memset.p0.i32(ptr nocapture writeonly, i8, i32, i1 immarg)
declare void @llvm.memmove.p0.p0.i32(ptr nocapture writeonly, ptr nocapture readonly, i32, i1 immarg)
Codebase Browser
llvm