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