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# RUN: llc -mtriple=hexagon -run-pass pipeliner -debug-only=pipeliner %s -o /dev/null 2>&1 -pipeliner-experimental-cg=true | FileCheck %s
# REQUIRES: asserts
# Test that the loop carried dependence check correctly identifies a recurrence
# when load and store use distinct increment for their pointer. To test this,
# we check that we don't have the Rec NodeSet containing SU(5) and SU(7) which
# requires to use a single CHECK-NOT to match such a Rec NodeSet. Fortunately
# the atom '.' does not match a newline but anything else on a line.
# CHECK-NOT: Rec NodeSet{{.+[[:space:]]}} SU(5){{.+[[:space:]]}} SU(7)
...
---
name: test
tracksRegLiveness: true
body: |
bb.0:
successors: %bb.3, %bb.1
liveins: $r0, $r1, $r2
%14:intregs = COPY $r2
%13:intregs = COPY $r1
%12:intregs = COPY $r0
%16:predregs = C2_cmpeqi %14, 2
%15:intregs = A2_tfrsi 0
J2_jumpt killed %16, %bb.3, implicit-def dead $pc
J2_jump %bb.1, implicit-def dead $pc
bb.1:
successors: %bb.2
%0:intregs = A2_addi %14, -2
%1:intregs = A2_addi %12, 10
%2:intregs = A2_addi %13, 4
%17:intregs = A2_tfrsi 0
%23:intregs = COPY %0
J2_loop0r %bb.2, %23, implicit-def $lc0, implicit-def $sa0, implicit-def $usr
bb.2 (machine-block-address-taken):
successors: %bb.3, %bb.2
%3:intregs = PHI %2, %bb.1, %10, %bb.2
%4:intregs = PHI %1, %bb.1, %9, %bb.2
%21:intregs = PHI %1, %bb.1, %22, %bb.2
%6:intregs = PHI %17, %bb.1, %7, %bb.2
%18:intregs, %10:intregs = L2_loadrh_pi %3, 2 :: (load (s16))
%19:intregs, %22:intregs = L2_loadrh_pi %21, 2 :: (load (s16))
%20:intregs = A2_addi %18, 10
%9:intregs = S2_storerh_pi %4, 2, killed %20 :: (store (s16))
%7:intregs = M2_acci %19, %6, %18
ENDLOOP0 %bb.2, implicit-def $pc, implicit-def $lc0, implicit $sa0, implicit $lc0
J2_jump %bb.3, implicit-def dead $pc
bb.3:
%11:intregs = PHI %15, %bb.0, %7, %bb.2
$r0 = COPY %11
PS_jmpret $r31, implicit-def dead $pc, implicit $r0
...
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