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1; RUN: opt -S -passes=objc-arc-contract < %s | FileCheck %s2 3; The optimizer should be able to move the autorelease past a control triangle4; and various scary looking things and fold it into an objc_retainAutorelease.5 6; CHECK: bb57:7; CHECK: tail call ptr @llvm.objc.retainAutorelease(ptr %tmp71x) [[NUW:#[0-9]+]]8; CHECK: bb99:9 10target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"11target triple = "x86_64-apple-darwin11.0.0"12 13%0 = type { ptr, ptr }14%1 = type { ptr, ptr }15%2 = type { ptr, ptr, ptr, ptr, ptr }16%3 = type opaque17%4 = type { i32, i32, i32, ptr, ptr, ptr, ptr, ptr, ptr, ptr }18%5 = type { i32, i32, [0 x %6] }19%6 = type { ptr, ptr, ptr }20%7 = type { i64, [0 x ptr] }21%8 = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, i32, i32 }22%9 = type { i32, i32, [0 x %1] }23%10 = type { i32, i32, [0 x %11] }24%11 = type { ptr, ptr, ptr, i32, i32 }25%12 = type { ptr, i32, ptr, i64 }26%13 = type opaque27%14 = type opaque28%15 = type opaque29%16 = type opaque30%17 = type opaque31%18 = type opaque32%19 = type opaque33%20 = type opaque34%21 = type opaque35%22 = type opaque36%23 = type opaque37%24 = type opaque38%25 = type opaque39 40@"\01l_objc_msgSend_fixup_alloc" = external hidden global %0, section "__DATA, __objc_msgrefs, coalesced", align 1641@"\01L_OBJC_SELECTOR_REFERENCES_8" = external hidden global ptr, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"42@"\01L_OBJC_SELECTOR_REFERENCES_3725" = external hidden global ptr, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"43@"\01L_OBJC_CLASSLIST_REFERENCES_$_40" = external hidden global ptr, section "__DATA, __objc_classrefs, regular, no_dead_strip", align 844@"\01L_OBJC_SELECTOR_REFERENCES_4227" = external hidden global ptr, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"45@"\01L_OBJC_SELECTOR_REFERENCES_4631" = external hidden global ptr, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"46@"\01L_OBJC_CLASSLIST_REFERENCES_$_70" = external hidden global ptr, section "__DATA, __objc_classrefs, regular, no_dead_strip", align 847@"\01L_OBJC_SELECTOR_REFERENCES_148" = external hidden global ptr, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"48@"\01L_OBJC_SELECTOR_REFERENCES_159" = external hidden global ptr, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"49@"\01L_OBJC_SELECTOR_REFERENCES_188" = external hidden global ptr, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"50@"\01L_OBJC_SELECTOR_REFERENCES_328" = external hidden global ptr, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"51@"\01l_objc_msgSend_fixup_objectAtIndex_" = external hidden global %0, section "__DATA, __objc_msgrefs, coalesced", align 1652@_unnamed_cfstring_386 = external hidden constant %12, section "__DATA,__cfstring"53@"\01l_objc_msgSend_fixup_count" = external hidden global %0, section "__DATA, __objc_msgrefs, coalesced", align 1654@"\01L_OBJC_SELECTOR_REFERENCES_389" = external hidden global ptr, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"55@"\01L_OBJC_SELECTOR_REFERENCES_391" = external hidden global ptr, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"56@"\01L_OBJC_SELECTOR_REFERENCES_393" = external hidden global ptr, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"57@NSPrintHeaderAndFooter = external constant ptr58@"\01L_OBJC_SELECTOR_REFERENCES_395" = external hidden global ptr, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"59@"\01L_OBJC_CLASSLIST_REFERENCES_$_396" = external hidden global ptr, section "__DATA, __objc_classrefs, regular, no_dead_strip", align 860@"\01L_OBJC_SELECTOR_REFERENCES_398" = external hidden global ptr, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"61@"\01L_OBJC_SELECTOR_REFERENCES_400" = external hidden global ptr, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"62@"\01L_OBJC_SELECTOR_REFERENCES_402" = external hidden global ptr, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"63@"\01L_OBJC_SELECTOR_REFERENCES_404" = external hidden global ptr, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"64@"\01L_OBJC_SELECTOR_REFERENCES_406" = external hidden global ptr, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"65@"\01L_OBJC_SELECTOR_REFERENCES_408" = external hidden global ptr, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"66@"\01L_OBJC_CLASSLIST_REFERENCES_$_409" = external hidden global ptr, section "__DATA, __objc_classrefs, regular, no_dead_strip", align 867@"\01L_OBJC_SELECTOR_REFERENCES_411" = external hidden global ptr, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"68@"\01L_OBJC_SELECTOR_REFERENCES_413" = external hidden global ptr, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"69@"\01L_OBJC_SELECTOR_REFERENCES_415" = external hidden global ptr, section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"70 71declare ptr @objc_msgSend(ptr, ptr, ...)72 73declare ptr @llvm.objc.retain(ptr)74 75declare void @llvm.objc.release(ptr)76 77declare ptr @llvm.objc.autorelease(ptr)78 79declare ptr @llvm.objc.explicit_autorelease(ptr)80 81define hidden ptr @foo(ptr %arg, ptr %arg2) {82bb:83 %tmp = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_3725", align 884 %tmp5 = tail call ptr @objc_msgSend(ptr %arg, ptr %tmp)85 %tmp7 = tail call ptr @llvm.objc.retain(ptr %tmp5) nounwind86 %tmp8 = load ptr, ptr @"\01L_OBJC_CLASSLIST_REFERENCES_$_40", align 887 %tmp9 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_4227", align 888 %tmp11 = tail call ptr @objc_msgSend(ptr %tmp8, ptr %tmp9)89 %tmp12 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_4631", align 890 %tmp14 = tail call signext i8 @objc_msgSend(ptr %tmp11, ptr %tmp12, ptr @_unnamed_cfstring_386)91 %tmp16 = load ptr, ptr @"\01l_objc_msgSend_fixup_count", align 1692 %tmp18 = tail call i64 %tmp16(ptr %arg2, ptr @"\01l_objc_msgSend_fixup_count")93 %tmp19 = icmp eq i64 %tmp18, 094 br i1 %tmp19, label %bb22, label %bb2095 96bb20: ; preds = %bb97 %tmp21 = icmp eq i8 %tmp14, 098 br label %bb2599 100bb22: ; preds = %bb101 %tmp24 = icmp eq i8 %tmp14, 0102 br i1 %tmp24, label %bb46, label %bb25103 104bb25: ; preds = %bb22, %bb20105 %tmp26 = phi i1 [ %tmp21, %bb20 ], [ false, %bb22 ]106 %tmp27 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_188", align 8107 %tmp28 = tail call ptr @objc_msgSend(ptr %tmp7, ptr %tmp27)108 %tmp29 = tail call ptr @llvm.objc.explicit_autorelease(ptr %tmp28) nounwind109 tail call void @llvm.objc.release(ptr %tmp7) nounwind110 %tmp31 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_389", align 8111 %tmp32 = tail call ptr @objc_msgSend(ptr %tmp29, ptr %tmp31)112 %tmp33 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_391", align 8113 tail call void @objc_msgSend(ptr %tmp32, ptr %tmp33, ptr %arg2)114 br i1 %tmp26, label %bb46, label %bb35115 116bb35: ; preds = %bb25117 %tmp36 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_389", align 8118 %tmp37 = tail call ptr @objc_msgSend(ptr %tmp29, ptr %tmp36)119 %tmp38 = load ptr, ptr @"\01L_OBJC_CLASSLIST_REFERENCES_$_70", align 8120 %tmp39 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_393", align 8121 %tmp41 = tail call ptr @objc_msgSend(ptr %tmp38, ptr %tmp39, i8 signext 1)122 %tmp43 = load ptr, ptr @NSPrintHeaderAndFooter, align 8123 %tmp44 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_159", align 8124 tail call void @objc_msgSend(ptr %tmp37, ptr %tmp44, ptr %tmp41, ptr %tmp43)125 br label %bb46126 127bb46: ; preds = %bb35, %bb25, %bb22128 %tmp47 = phi ptr [ %tmp29, %bb35 ], [ %tmp29, %bb25 ], [ %tmp7, %bb22 ]129 %tmp48 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_328", align 8130 %tmp49 = tail call ptr @objc_msgSend(ptr %arg, ptr %tmp48)131 %tmp51 = load ptr, ptr @"\01l_objc_msgSend_fixup_count", align 16132 %tmp53 = tail call i64 %tmp51(ptr %tmp49, ptr @"\01l_objc_msgSend_fixup_count")133 %tmp54 = icmp eq i64 %tmp53, 0134 br i1 %tmp54, label %bb55, label %bb57135 136bb55: ; preds = %bb46137 %tmp56 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_395", align 8138 tail call void @objc_msgSend(ptr %arg, ptr %tmp56)139 br label %bb57140 141bb57: ; preds = %bb55, %bb46142 %tmp58 = load ptr, ptr @"\01L_OBJC_CLASSLIST_REFERENCES_$_396", align 8143 %tmp59 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_328", align 8144 %tmp60 = tail call ptr @objc_msgSend(ptr %arg, ptr %tmp59)145 %tmp62 = load ptr, ptr @"\01l_objc_msgSend_fixup_objectAtIndex_", align 16146 %tmp64 = tail call ptr %tmp62(ptr %tmp60, ptr @"\01l_objc_msgSend_fixup_objectAtIndex_", i64 0)147 %tmp65 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_398", align 8148 %tmp66 = tail call ptr @objc_msgSend(ptr %tmp64, ptr %tmp65)149 %tmp68 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_400", align 8150 %tmp70 = tail call ptr @objc_msgSend(ptr %tmp58, ptr %tmp68, ptr %tmp66, ptr %tmp47)151 ; hack to prevent the optimize from using objc_retainAutoreleasedReturnValue.152 %tmp71x = getelementptr i8, ptr %tmp70, i64 1153 %tmp72 = tail call ptr @llvm.objc.retain(ptr %tmp71x) nounwind154 %tmp73 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_402", align 8155 tail call void @objc_msgSend(ptr %tmp72, ptr %tmp73, i8 signext 1)156 %tmp74 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_404", align 8157 tail call void @objc_msgSend(ptr %tmp72, ptr %tmp74, i8 signext 1)158 %tmp75 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_328", align 8159 %tmp76 = tail call ptr @objc_msgSend(ptr %arg, ptr %tmp75)160 %tmp78 = load ptr, ptr @"\01l_objc_msgSend_fixup_objectAtIndex_", align 16161 %tmp80 = tail call ptr %tmp78(ptr %tmp76, ptr @"\01l_objc_msgSend_fixup_objectAtIndex_", i64 0)162 %tmp81 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_406", align 8163 tail call void @objc_msgSend(ptr %tmp80, ptr %tmp81, i64 9223372036854775807)164 %tmp82 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_408", align 8165 %tmp83 = tail call ptr @objc_msgSend(ptr %tmp72, ptr %tmp82)166 %tmp85 = tail call ptr @llvm.objc.retain(ptr %tmp83) nounwind167 %tmp86 = load ptr, ptr @"\01L_OBJC_CLASSLIST_REFERENCES_$_409", align 8168 %tmp88 = load ptr, ptr @"\01l_objc_msgSend_fixup_alloc", align 16169 %tmp90 = tail call ptr %tmp88(ptr %tmp86, ptr @"\01l_objc_msgSend_fixup_alloc")170 %tmp91 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_8", align 8171 %tmp92 = tail call ptr @objc_msgSend(ptr %tmp90, ptr %tmp91)172 %tmp93 = tail call ptr @llvm.objc.explicit_autorelease(ptr %tmp92) nounwind173 %tmp95 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_411", align 8174 tail call void @objc_msgSend(ptr %tmp85, ptr %tmp95, ptr %tmp93)175 tail call void @llvm.objc.release(ptr %tmp93) nounwind176 %tmp96 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_148", align 8177 %tmp97 = tail call signext i8 @objc_msgSend(ptr %arg, ptr %tmp96)178 %tmp98 = icmp eq i8 %tmp97, 0179 br i1 %tmp98, label %bb99, label %bb104180 181bb99: ; preds = %bb57182 %tmp100 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_413", align 8183 %tmp101 = tail call i64 @objc_msgSend(ptr %tmp85, ptr %tmp100)184 %tmp102 = or i64 %tmp101, 12185 %tmp103 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_415", align 8186 tail call void @objc_msgSend(ptr %tmp85, ptr %tmp103, i64 %tmp102)187 br label %bb104188 189bb104: ; preds = %bb99, %bb57190 %tmp105 = call ptr @llvm.objc.autorelease(ptr %tmp72) nounwind191 tail call void @llvm.objc.release(ptr %tmp85) nounwind192 tail call void @llvm.objc.release(ptr %tmp47) nounwind193 ret ptr %tmp105194}195 196; CHECK: attributes [[NUW]] = { nounwind }197