1 # RUN: llc -verify-machineinstrs -mcpu=pwr9 -mtriple powerpc64le-unknown-linux-gnu \
2 # RUN: -run-pass=shrink-wrap -o - %s | FileCheck %s
5 source_filename = "test.ll"
6 target datalayout = "e-m:e-i64:64-n32:64"
8 define signext i32 @shrinkwrapme(i32 signext %a, i32 signext %lim) {
10 %cmp5 = icmp sgt i32 %lim, 0
11 br i1 %cmp5, label %for.body.preheader, label %for.cond.cleanup
13 for.body.preheader: ; preds = %entry
15 %1 = zext i32 %0 to i64
16 %2 = add nuw nsw i64 %1, 1
17 call void @llvm.set.loop.iterations.i64(i64 %2)
20 for.cond.cleanup: ; preds = %for.body, %entry
21 %Ret.0.lcssa = phi i32 [ 0, %entry ], [ %3, %for.body ]
24 for.body: ; preds = %for.body, %for.body.preheader
25 %Ret.06 = phi i32 [ %3, %for.body ], [ 0, %for.body.preheader ]
26 %3 = tail call i32 asm "add $0, $1, $2", "=r,r,r,~{r14},~{r15},~{r16},~{r17},~{r18},~{r19},~{r20},~{r21},~{r22},~{r23},~{r24},~{r25},~{r26},~{r27},~{r28},~{r29},~{r30},~{r31}"(i32 %a, i32 %Ret.06)
27 %4 = call i1 @llvm.loop.decrement.i64(i64 1)
28 br i1 %4, label %for.body, label %for.cond.cleanup
31 ; Function Attrs: noduplicate nounwind
32 declare void @llvm.set.loop.iterations.i64(i64) #0
34 ; Function Attrs: noduplicate nounwind
35 declare i1 @llvm.loop.decrement.i64(i64) #0
37 ; Function Attrs: nounwind
38 declare void @llvm.stackprotector(i8*, i8**) #1
40 attributes #0 = { noduplicate nounwind }
41 attributes #1 = { nounwind }
47 exposesReturnsTwice: false
49 regBankSelected: false
52 tracksRegLiveness: true
56 - { reg: '$x3', virtual-reg: '' }
57 - { reg: '$x4', virtual-reg: '' }
59 isFrameAddressTaken: false
60 isReturnAddressTaken: false
69 maxCallFrameSize: 4294967295
70 cvBytesOfCalleeSavedRegisters: 0
71 hasOpaqueSPAdjustment: false
73 hasMustTailInVarArgFunc: false
81 machineFunctionInfo: {}
84 successors: %bb.2(0x50000000), %bb.1(0x30000000)
87 renamable $cr0 = CMPWI renamable $r4, 1
88 BCC 4, killed renamable $cr0, %bb.2
91 successors: %bb.3(0x80000000)
96 bb.2.for.body.preheader:
97 successors: %bb.4(0x80000000)
100 renamable $r4 = ADDI renamable $r4, -1, implicit killed $x4, implicit-def $x4
101 renamable $x4 = RLDICL killed renamable $x4, 0, 32
102 renamable $x4 = nuw nsw ADDI8 killed renamable $x4, 1
103 MTCTR8loop killed renamable $x4, implicit-def dead $ctr8
107 bb.3.for.cond.cleanup:
110 renamable $x3 = EXTSW_32_64 killed renamable $r4
111 BLR8 implicit $lr8, implicit $rm, implicit $x3
114 successors: %bb.4(0x7c000000), %bb.3(0x04000000)
117 INLINEASM &"add $0, $1, $2", 0, 131082, def renamable $r4, 131081, renamable $r3, 131081, killed renamable $r4, 12, implicit-def dead early-clobber $r14, 12, implicit-def dead early-clobber $r15, 12, implicit-def dead early-clobber $r16, 12, implicit-def dead early-clobber $r17, 12, implicit-def dead early-clobber $r18, 12, implicit-def dead early-clobber $r19, 12, implicit-def dead early-clobber $r20, 12, implicit-def dead early-clobber $r21, 12, implicit-def dead early-clobber $r22, 12, implicit-def dead early-clobber $r23, 12, implicit-def dead early-clobber $r24, 12, implicit-def dead early-clobber $r25, 12, implicit-def dead early-clobber $r26, 12, implicit-def dead early-clobber $r27, 12, implicit-def dead early-clobber $r28, 12, implicit-def dead early-clobber $r29, 12, implicit-def dead early-clobber $r30, 12, implicit-def dead early-clobber $r31
118 BDNZ8 %bb.4, implicit-def dead $ctr8, implicit $ctr8
121 ; CHECK: savePoint: ''
122 ; CHECK-NEXT: restorePoint: ''
124 ; CHECK: bb.4.for.body:
125 ; CHECK-NEXT: successors: %bb.4(0x7c000000), %bb.3(0x04000000)
126 ; CHECK-NEXT: liveins: $r4, $x3
128 ; CHECK-NEXT: BDNZ8 %bb.4
129 ; CHECK-NEXT: B %bb.3