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1# RUN: llc -run-pass=stack-coloring %s -o - | FileCheck %s2 3## Test %stack.1 is merged into %stack.0 and there is no MemoryMemOperand4## referencing %stack.1. This regression test is sensitive to the StackColoring5## algorithm. Please adjust or delete this test if the merging strategy6## changes.7 8# CHECK: {{^}}stack:9# CHECK-NEXT: - { id: 0,10# CHECK-NOT: - { id: 1,11# CHECK: - { id: 2,12# CHECK-NOT: %stack.113 14--- |15 ; ModuleID = '<stdin>'16 source_filename = "<stdin>"17 target datalayout = "E-m:e-p:32:32-i64:64-n32"18 target triple = "powerpc-unknown-freebsd13.0"19 20 %struct.__va_list_tag = type { i8, i8, i16, ptr, ptr }21 ; Function Attrs: argmemonly nounwind willreturn22 declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #023 define dso_local void @atf_tc_fail_nonfatal(ptr %fmt, ...) !dbg !3 {24 entry:25 %buf.i.i = alloca [1024 x i8], align 126 %ap2.i.i = alloca [1 x %struct.__va_list_tag], align 427 br i1 undef, label %format_reason_ap.exit.i, label %if.then6.i.i28 29 if.then6.i.i: ; preds = %entry30 %0 = bitcast ptr %ap2.i.i to ptr31 call void @llvm.lifetime.start.p0(i64 12, ptr nonnull %0)32 call void @llvm.va_copy(ptr nonnull %0, ptr nonnull null)33 ret void34 35 format_reason_ap.exit.i: ; preds = %entry36 %1 = bitcast ptr %buf.i.i to ptr37 call void @llvm.lifetime.start.p0(i64 1024, ptr nonnull %1)38 call void @fprintf(ptr nonnull %1)39 ret void40 }41 declare void @fprintf(ptr)42 ; Function Attrs: nounwind43 declare void @llvm.va_copy(ptr, ptr) #144 45 attributes #0 = { argmemonly nounwind willreturn }46 attributes #1 = { nounwind }47 48 !llvm.dbg.cu = !{!0}49 !llvm.module.flags = !{!2}50 51 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, isOptimized: true, runtimeVersion: 0, emissionKind: LineTablesOnly, splitDebugInlining: false, nameTableKind: None)52 !1 = !DIFile(filename: "tc.c", directory: "")53 !2 = !{i32 2, !"Debug Info Version", i32 3}54 !3 = distinct !DISubprogram(name: "atf_tc_fail_nonfatal", scope: !1, file: !1, line: 1067, type: !4, scopeLine: 1068, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0)55 !4 = !DISubroutineType(types: !5)56 !5 = !{}57 58...59---60name: atf_tc_fail_nonfatal61alignment: 462tracksRegLiveness: true63registers:64 - { id: 0, class: gprc }65 - { id: 1, class: gprc }66 - { id: 2, class: gprc }67 - { id: 3, class: gprc }68 - { id: 4, class: gprc }69 - { id: 5, class: gprc }70 - { id: 6, class: gprc }71 - { id: 7, class: gprc }72 - { id: 8, class: f8rc }73 - { id: 9, class: f8rc }74 - { id: 10, class: f8rc }75 - { id: 11, class: f8rc }76 - { id: 12, class: f8rc }77 - { id: 13, class: f8rc }78 - { id: 14, class: f8rc }79 - { id: 15, class: f8rc }80 - { id: 16, class: crbitrc }81 - { id: 17, class: gprc }82 - { id: 18, class: gprc }83 - { id: 19, class: gprc }84 - { id: 20, class: gprc }85liveins:86 - { reg: '$r3', virtual-reg: '%0' }87 - { reg: '$r4', virtual-reg: '%1' }88 - { reg: '$r5', virtual-reg: '%2' }89 - { reg: '$r6', virtual-reg: '%3' }90 - { reg: '$r7', virtual-reg: '%4' }91 - { reg: '$r8', virtual-reg: '%5' }92 - { reg: '$r9', virtual-reg: '%6' }93 - { reg: '$r10', virtual-reg: '%7' }94 - { reg: '$f1', virtual-reg: '%8' }95 - { reg: '$f2', virtual-reg: '%9' }96 - { reg: '$f3', virtual-reg: '%10' }97 - { reg: '$f4', virtual-reg: '%11' }98 - { reg: '$f5', virtual-reg: '%12' }99 - { reg: '$f6', virtual-reg: '%13' }100 - { reg: '$f7', virtual-reg: '%14' }101 - { reg: '$f8', virtual-reg: '%15' }102frameInfo:103 maxAlignment: 8104 hasCalls: true105fixedStack:106 - { id: 0, offset: 8, size: 4, alignment: 8, isImmutable: true }107stack:108 - { id: 0, name: buf.i.i, size: 1024, alignment: 1 }109 - { id: 1, name: ap2.i.i, size: 12, alignment: 8 }110 - { id: 2, size: 96, alignment: 8 }111machineFunctionInfo: {}112body: |113 bb.0.entry:114 liveins: $r3, $r4, $r5, $r6, $r7, $r8, $r9, $r10, $f1, $f2, $f3, $f4, $f5, $f6, $f7, $f8115 116 %15:f8rc = COPY $f8117 %14:f8rc = COPY $f7118 %13:f8rc = COPY $f6119 %12:f8rc = COPY $f5120 %11:f8rc = COPY $f4121 %10:f8rc = COPY $f3122 %9:f8rc = COPY $f2123 %8:f8rc = COPY $f1124 %7:gprc = COPY $r10125 %6:gprc = COPY $r9126 %5:gprc = COPY $r8127 %4:gprc = COPY $r7128 %3:gprc = COPY $r6129 %2:gprc = COPY $r5130 %1:gprc = COPY $r4131 %0:gprc = COPY $r3132 STW %0, 0, %stack.2 :: (store (s32) into %stack.2, align 8)133 STW %1, 4, %stack.2 :: (store (s32) into %stack.2 + 4)134 STW %2, 8, %stack.2 :: (store (s32) into %stack.2 + 8, align 8)135 STW %3, 12, %stack.2 :: (store (s32))136 STW %4, 16, %stack.2 :: (store (s32) into %stack.2 + 16, align 8)137 STW %5, 20, %stack.2 :: (store (s32))138 STW %6, 24, %stack.2 :: (store (s32) into %stack.2 + 24, align 8)139 STW %7, 28, %stack.2 :: (store (s32))140 STFD %8, 32, %stack.2 :: (store (s64))141 STFD %9, 40, %stack.2 :: (store (s64))142 STFD %10, 48, %stack.2 :: (store (s64))143 STFD %11, 56, %stack.2 :: (store (s64))144 STFD %12, 64, %stack.2 :: (store (s64))145 STFD %13, 72, %stack.2 :: (store (s64))146 STFD %14, 80, %stack.2 :: (store (s64))147 STFD %15, 88, %stack.2 :: (store (s64))148 %16:crbitrc = IMPLICIT_DEF149 BC killed %16, %bb.2150 B %bb.1151 152 bb.1.if.then6.i.i:153 LIFETIME_START %stack.1.ap2.i.i154 %17:gprc = LWZ 8, $zero :: (load (s32), align 8)155 STW killed %17, 8, %stack.1.ap2.i.i :: (store (s32) into %stack.1.ap2.i.i + 8, basealign 8)156 %18:gprc = LWZ 4, $zero :: (load (s32))157 STW killed %18, 4, %stack.1.ap2.i.i :: (store (s32) into %stack.1.ap2.i.i + 4, basealign 8)158 %19:gprc = LWZ 0, $zero :: (load (s32), align 8)159 STW killed %19, 0, %stack.1.ap2.i.i :: (store (s32) into %stack.1.ap2.i.i, basealign 8)160 BLR implicit $lr, implicit $rm161 162 bb.2.format_reason_ap.exit.i:163 LIFETIME_START %stack.0.buf.i.i164 ADJCALLSTACKDOWN 8, 0, implicit-def dead $r1, implicit $r1165 %20:gprc = ADDI %stack.0.buf.i.i, 0166 $r3 = COPY %20167 BL @fprintf, csr_svr432, implicit-def dead $lr, implicit $rm, implicit $r3, implicit-def $r1168 ADJCALLSTACKUP 8, 0, implicit-def dead $r1, implicit $r1169 BLR implicit $lr, implicit $rm170 171...172