1 # RUN: llc -mcpu=pwr9 -mtriple powerpc64le-unknown-linux-gnu -start-before machine-scheduler -stop-after machine-scheduler -verify-machineinstrs %s -o - | FileCheck %s
2 # RUN: llc -mcpu=pwr9 -mtriple powerpc64le-unknown-linux-gnu -disable-ppc-sched-addi-load -start-before machine-scheduler -stop-after machine-scheduler \
3 # RUN: -verify-machineinstrs %s -o - | FileCheck --check-prefix=CHECK-DISABLE %s
4 # RUN: llc -mcpu=pwr8 -mtriple powerpc64le-unknown-linux-gnu -start-before machine-scheduler -stop-after machine-scheduler -verify-machineinstrs %s -o - | FileCheck --check-prefix=CHECK-P8 %s
6 # Test that if the scheduler moves the addi before the load.
8 target datalayout = "e-m:e-i64:64-n32:64"
10 define i64 @foo(ptr %p, ptr %q) {
12 br label %while.cond6.i
15 %n.0 = phi i64 [ 0, %entry ], [ %n.1, %while.cond6.i ]
16 %conv = and i64 %n.0, 4294967295
17 %arrayidx = getelementptr inbounds i8, ptr %p, i64 %conv
18 %0 = load i8, ptr %arrayidx, align 1
19 %arrayidx4 = getelementptr inbounds i8, ptr %q, i64 %conv
20 %1 = load i8, ptr %arrayidx4, align 1
21 %cmp = icmp eq i8 %0, %1
22 %n.1 = add i64 %conv, 1
23 br i1 %cmp, label %while.cond6.i, label %while.end
33 exposesReturnsTwice: false
35 regBankSelected: false
38 tracksRegLiveness: true
41 - { id: 0, class: g8rc, preferred-register: '' }
42 - { id: 1, class: g8rc, preferred-register: '' }
43 - { id: 2, class: g8rc_and_g8rc_nox0, preferred-register: '' }
44 - { id: 3, class: g8rc_and_g8rc_nox0, preferred-register: '' }
45 - { id: 4, class: g8rc, preferred-register: '' }
46 - { id: 5, class: g8rc_and_g8rc_nox0, preferred-register: '' }
47 - { id: 6, class: gprc, preferred-register: '' }
48 - { id: 7, class: gprc, preferred-register: '' }
49 - { id: 8, class: crrc, preferred-register: '' }
50 - { id: 9, class: g8rc, preferred-register: '' }
52 - { reg: '$x3', virtual-reg: '%2' }
53 - { reg: '$x4', virtual-reg: '%3' }
55 isFrameAddressTaken: false
56 isReturnAddressTaken: false
65 maxCallFrameSize: 4294967295
66 cvBytesOfCalleeSavedRegisters: 0
67 hasOpaqueSPAdjustment: false
69 hasMustTailInVarArgFunc: false
76 machineFunctionInfo: {}
79 successors: %bb.1(0x80000000)
82 %3:g8rc_and_g8rc_nox0 = COPY $x4
83 %2:g8rc_and_g8rc_nox0 = COPY $x3
87 successors: %bb.1(0x7c000000), %bb.2(0x04000000)
90 %5:g8rc_and_g8rc_nox0 = RLDICL %0, 0, 32
91 %6:gprc = LBZX %2, %5 :: (load (s8) from %ir.arrayidx)
92 %7:gprc = LBZX %3, %5 :: (load (s8) from %ir.arrayidx4)
94 %8:crrc = CMPLW %6, %7
98 ; CHECK: %5:g8rc_and_g8rc_nox0 = RLDICL %0, 0, 32
99 ; CHECK-NEXT: %9:g8rc = ADDI8 %5, 1
100 ; CHECK-NEXT: %6:gprc = LBZX %2, %5 :: (load (s8) from %ir.arrayidx)
101 ; CHECK-NEXT: %7:gprc = LBZX %3, %5 :: (load (s8) from %ir.arrayidx4)
102 ; CHECK-NEXT: %8:crrc = CMPLW %6, %7
103 ; CHECK-NEXT: BCC 76, %8
104 ; CHECK-DISABLE-LABEL: foo
105 ; CHECK-DISABLE: %5:g8rc_and_g8rc_nox0 = RLDICL %0, 0, 32
106 ; CHECK-DISABLE-NEXT: %6:gprc = LBZX %2, %5 :: (load (s8) from %ir.arrayidx)
107 ; CHECK-DISABLE-NEXT: %7:gprc = LBZX %3, %5 :: (load (s8) from %ir.arrayidx4)
108 ; CHECK-DISABLE-NEXT: %9:g8rc = ADDI8 %5, 1
109 ; CHECK-DISABLE-NEXT: %8:crrc = CMPLW %6, %7
110 ; CHECK-DISABLE-NEXT: BCC 76, %8
111 ; CHECK-P8-LABEL: foo
112 ; CHECK-P8: %5:g8rc_and_g8rc_nox0 = RLDICL %0, 0, 32
113 ; CHECK-P8-NEXT: %6:gprc = LBZX %2, %5 :: (load (s8) from %ir.arrayidx)
114 ; CHECK-P8-NEXT: %7:gprc = LBZX %3, %5 :: (load (s8) from %ir.arrayidx4)
115 ; CHECK-P8-NEXT: %9:g8rc = ADDI8 %5, 1
116 ; CHECK-P8-NEXT: %8:crrc = CMPLW %6, %7
117 ; CHECK-P8-NEXT: BCC 76, %8
121 BLR8 implicit $lr8, implicit $rm, implicit $x3