1 # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
2 # RUN: llc -run-pass=t2-reduce-size %s -o - | FileCheck %s
5 target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
6 target triple = "thumbv8m.main-arm-none-eabi"
8 ; Function Attrs: norecurse nounwind readnone
9 define i32 @test(i32 %x, i32 %y) local_unnamed_addr #0 {
11 %cmp6 = icmp sgt i32 %y, 0
12 br i1 %cmp6, label %for.body.preheader, label %for.cond.cleanup
14 for.body.preheader: ; preds = %entry
17 for.cond.cleanup: ; preds = %for.body, %entry
18 %sum.0.lcssa = phi i32 [ 1, %entry ], [ %mul, %for.body ]
21 for.body: ; preds = %for.body, %for.body.preheader
22 %lsr.iv1 = phi i32 [ %lsr.iv.next2, %for.body ], [ %x, %for.body.preheader ]
23 %lsr.iv = phi i32 [ %lsr.iv.next, %for.body ], [ %y, %for.body.preheader ]
24 %sum.07 = phi i32 [ %mul, %for.body ], [ 1, %for.body.preheader ]
25 %mul = mul nsw i32 %lsr.iv1, %sum.07
26 %lsr.iv.next = add i32 %lsr.iv, -1
27 %lsr.iv.next2 = add i32 %lsr.iv1, 1
28 %exitcond = icmp eq i32 %lsr.iv.next, 0
29 br i1 %exitcond, label %for.cond.cleanup, label %for.body
32 attributes #0 = { norecurse nounwind readnone "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="cortex-m7" "target-features"="-d32,+dsp,+fp-armv8,-fp64,+hwdiv,+strict-align,+thumb-mode,-crc,-dotprod,-hwdiv-arm,-ras" "unsafe-fp-math"="false" "use-soft-float"="false" }
37 tracksRegLiveness: true
39 - { reg: '$r0', virtual-reg: '' }
40 - { reg: '$r1', virtual-reg: '' }
42 ; CHECK-LABEL: name: test
44 ; CHECK: successors: %bb.1(0x40000000), %bb.2(0x40000000)
45 ; CHECK: liveins: $r0, $r1
46 ; CHECK: $r2 = tMOVr $r0, 14, $noreg
47 ; CHECK: $r0, dead $cpsr = tMOVi8 1, 14, $noreg
48 ; CHECK: tCMPi8 $r1, 1, 14, $noreg, implicit-def $cpsr
49 ; CHECK: t2Bcc %bb.2, 11, killed $cpsr
50 ; CHECK: bb.1.for.body:
51 ; CHECK: successors: %bb.2(0x40000000), %bb.1(0x40000000)
52 ; CHECK: liveins: $r0, $r1, $r2
53 ; CHECK: $r0, dead $cpsr = tMUL $r2, killed $r0, 14, $noreg
54 ; CHECK: $r2, dead $cpsr = tADDi8 killed $r2, 1, 14, $noreg
55 ; CHECK: $r1, $cpsr = tSUBi8 killed $r1, 1, 14, $noreg
56 ; CHECK: t2Bcc %bb.1, 1, killed $cpsr
57 ; CHECK: bb.2.for.cond.cleanup:
59 ; CHECK: tBX_RET 14, $noreg, implicit $r0
61 successors: %bb.1.for.body, %bb.2.for.cond.cleanup
64 $r2 = tMOVr $r0, 14, _
65 $r0 = t2MOVi 1, 14, _, _
66 t2CMPri $r1, 1, 14, _, implicit-def $cpsr
67 t2Bcc %bb.2.for.cond.cleanup, 11, killed $cpsr
70 successors: %bb.2.for.cond.cleanup, %bb.1.for.body
71 liveins: $r0, $r1, $r2
73 $r0 = t2MUL $r2, killed $r0, 14, _
74 $r2 = t2ADDri killed $r2, 1, 14, _, _
75 $r1 = t2SUBri killed $r1, 1, 14, _, def $cpsr
76 t2Bcc %bb.1.for.body, 1, killed $cpsr
78 bb.2.for.cond.cleanup:
81 tBX_RET 14, _, implicit $r0