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| # RUN: llc -o /dev/null %s -mtriple=arm-eabi -mcpu=swift -run-pass machine-scheduler -enable-misched -verify-misched \
# RUN: -debug-only=machine-scheduler 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK_SWIFT
# RUN: llc -o /dev/null %s -mtriple=arm-eabi -mcpu=cortex-a9 -run-pass machine-scheduler -enable-misched -verify-misched \
# RUN: -debug-only=machine-scheduler 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK_A9
# RUN: llc -o /dev/null %s -mtriple=arm-eabi -mcpu=cortex-r52 -run-pass machine-scheduler -enable-misched -verify-misched \
# RUN: -debug-only=machine-scheduler 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK_R52
# REQUIRES: asserts
--- |
; ModuleID = 'foo.ll'
source_filename = "foo.ll"
target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
target triple = "arm---eabi"
define i64 @foo(i16 signext %a, i16 signext %b) {
entry:
%d = mul nsw i16 %a, %a
%e = mul nsw i16 %b, %b
%f = add nuw nsw i16 %e, %d
%c = zext i16 %f to i32
%mul8 = mul nsw i32 %c, %c
%mul9 = mul nsw i32 %mul8, %mul8
%add10 = add nuw nsw i32 %mul9, %mul8
%conv1130 = zext i32 %add10 to i64
%mul12 = mul nuw nsw i64 %conv1130, %conv1130
%mul13 = mul nsw i64 %mul12, %mul12
%add14 = add nuw nsw i64 %mul13, %mul12
ret i64 %add14
}
# CHECK: ********** MI Scheduling **********
# CHECK: SU(2): %2:gpr = SMULBB %1:gpr, %1:gpr, 14, $noreg
# CHECK_A9: Latency : 2
# CHECK_SWIFT: Latency : 4
# CHECK_R52: Latency : 4
#
# CHECK: SU(3): %3:gprnopc = SMLABB %0:gprnopc, %0:gprnopc, %2:gpr, 14, $noreg
# CHECK_A9: Latency : 2
# CHECK_SWIFT: Latency : 4
# CHECK_R52: Latency : 4
#
# CHECK: SU(4): %4:gprnopc = UXTH %3:gprnopc, 0, 14, $noreg
# CHECK_A9: Latency : 1
# CHECK_SWIFT: Latency : 1
# CHECK_R52: Latency : 3
#
# CHECK: SU(5): %5:gprnopc = MUL %4:gprnopc, %4:gprnopc, 14, $noreg, $noreg
# CHECK_A9: Latency : 2
# CHECK_SWIFT: Latency : 4
# CHECK_R52: Latency : 4
#
# CHECK: SU(6): %6:gprnopc = MLA %5:gprnopc, %5:gprnopc, %5:gprnopc, 14, $noreg, $noreg
# CHECK_A9: Latency : 2
# CHECK_SWIFT: Latency : 4
# CHECK_R52: Latency : 4
#
# CHECK: SU(7): %7:gprnopc, %8:gprnopc = UMULL %6:gprnopc, %6:gprnopc, 14, $noreg, $noreg
# CHECK_A9: Latency : 3
# CHECK_SWIFT: Latency : 5
# CHECK_R52: Latency : 4
#
# CHECK: SU(11): %13:gpr, %14:gprnopc = UMLAL %6:gprnopc, %6:gprnopc, %13:gpr(tied-def 0), %14:gprnopc(tied-def 1), 14, $noreg, $noreg
# CHECK_SWIFT: Latency : 7
# CHECK_A9: Latency : 3
# CHECK_R52: Latency : 4
# CHECK: ** ScheduleDAGMILive::schedule picking next node
...
---
name: foo
alignment: 4
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
tracksRegLiveness: true
registers:
- { id: 0, class: gprnopc }
- { id: 1, class: gpr }
- { id: 2, class: gpr }
- { id: 3, class: gprnopc }
- { id: 4, class: gprnopc }
- { id: 5, class: gprnopc }
- { id: 6, class: gprnopc }
- { id: 7, class: gprnopc }
- { id: 8, class: gprnopc }
- { id: 9, class: gpr }
- { id: 10, class: gprnopc }
- { id: 11, class: gprnopc }
- { id: 12, class: gprnopc }
- { id: 13, class: gpr }
- { id: 14, class: gprnopc }
liveins:
- { reg: '$r0', virtual-reg: '%0' }
- { reg: '$r1', virtual-reg: '%1' }
frameInfo:
isFrameAddressTaken: false
isReturnAddressTaken: false
hasStackMap: false
hasPatchPoint: false
stackSize: 0
offsetAdjustment: 0
maxAlignment: 0
adjustsStack: false
hasCalls: false
maxCallFrameSize: 0
hasOpaqueSPAdjustment: false
hasVAStart: false
hasMustTailInVarArgFunc: false
body: |
bb.0.entry:
liveins: $r0, $r1
%1 = COPY $r1
%0 = COPY $r0
%2 = SMULBB %1, %1, 14, $noreg
%3 = SMLABB %0, %0, %2, 14, $noreg
%4 = UXTH %3, 0, 14, $noreg
%5 = MUL %4, %4, 14, $noreg, $noreg
%6 = MLA %5, %5, %5, 14, $noreg, $noreg
%7, %8 = UMULL %6, %6, 14, $noreg, $noreg
%13, %10 = UMULL %7, %7, 14, $noreg, $noreg
%11 = MLA %7, %8, %10, 14, $noreg, $noreg
%14 = MLA %7, %8, %11, 14, $noreg, $noreg
%13, %14 = UMLAL %6, %6, %13, %14, 14, $noreg, $noreg
$r0 = COPY %13
$r1 = COPY %14
BX_RET 14, $noreg, implicit $r0, implicit $r1
...
|