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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 62; REQUIRES: asserts3; RUN: opt < %s -passes=gvn -stats -disable-output 2>&1 | FileCheck %s4 5; rdar://73631026 7; CHECK: Number of loads deleted8 9; GVN should be able to eliminate load %tmp22.i, because it is redundant with10; load %tmp8.i. This requires being able to prove that %tmp7.i doesn't11; alias the malloc'd value %tmp.i20.i.i, which it can do since %tmp7.i12; is derived from %tmp5.i which is computed from a load, and %tmp.i20.i.i13; is never stored and does not escape.14 15target 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"16target triple = "x86_64-apple-darwin10.0"17 18%"struct.llvm::MallocAllocator" = type <{ i8 }>19%"struct.llvm::StringMap<ptr,llvm::MallocAllocator>" = type { %"struct.llvm::StringMapImpl", %"struct.llvm::MallocAllocator" }20%"struct.llvm::StringMapEntry<ptr>" = type { %"struct.llvm::StringMapEntryBase", ptr }21%"struct.llvm::StringMapEntryBase" = type { i32 }22%"struct.llvm::StringMapImpl" = type { ptr, i32, i32, i32, i32 }23%"struct.llvm::StringMapImpl::ItemBucket" = type { i32, ptr }24%"struct.llvm::StringRef" = type { ptr, i64 }25 26define ptr @_Z3fooRN4llvm9StringMapIPvNS_15MallocAllocatorEEEPKc(ptr %X, ptr %P) ssp {27entry:28 %tmp = alloca %"struct.llvm::StringRef", align 829 store ptr %P, ptr %tmp, align 830 %tmp1.i = call i64 @strlen(ptr %P) nounwind readonly31 %tmp2.i = getelementptr inbounds %"struct.llvm::StringRef", ptr %tmp, i64 0, i32 132 store i64 %tmp1.i, ptr %tmp2.i, align 833 %tmp1 = call ptr @_ZN4llvm9StringMapIPvNS_15MallocAllocatorEE16GetOrCreateValueERKNS_9StringRefE(ptr %X, ptr %tmp) ssp34 ret ptr %tmp135}36 37declare i64 @strlen(ptr nocapture) nounwind readonly38 39declare noalias ptr @malloc(i64) nounwind allockind("alloc,uninitialized") allocsize(0) inaccessiblememonly40 41declare i32 @_ZN4llvm13StringMapImpl15LookupBucketForENS_9StringRefE(ptr, i64, i64)42 43define linkonce_odr ptr @_ZN4llvm9StringMapIPvNS_15MallocAllocatorEE16GetOrCreateValueERKNS_9StringRefE(ptr %this, ptr nocapture %Key) ssp align 2 {44entry:45 %val = load i64, ptr %Key46 %tmp = getelementptr inbounds %"struct.llvm::StringRef", ptr %Key, i64 0, i32 147 %val2 = load i64, ptr %tmp48 %tmp2.i = getelementptr inbounds %"struct.llvm::StringMap<ptr,llvm::MallocAllocator>", ptr %this, i64 0, i32 049 %tmp3.i = tail call i32 @_ZN4llvm13StringMapImpl15LookupBucketForENS_9StringRefE(ptr %tmp2.i, i64 %val, i64 %val2)50 %tmp4.i = getelementptr inbounds %"struct.llvm::StringMap<ptr,llvm::MallocAllocator>", ptr %this, i64 0, i32 0, i32 051 %tmp5.i = load ptr, ptr %tmp4.i, align 852 %tmp6.i = zext i32 %tmp3.i to i6453 %tmp7.i = getelementptr inbounds %"struct.llvm::StringMapImpl::ItemBucket", ptr %tmp5.i, i64 %tmp6.i, i32 154 %tmp8.i = load ptr, ptr %tmp7.i, align 855 %tmp9.i = icmp eq ptr %tmp8.i, null56 %tmp13.i = icmp eq ptr %tmp8.i, inttoptr (i64 -1 to ptr)57 %or.cond.i = or i1 %tmp9.i, %tmp13.i58 br i1 %or.cond.i, label %bb4.i, label %bb6.i59 60bb4.i: ; preds = %entry61 %tmp41.i = inttoptr i64 %val to ptr62 %tmp4.i35.i = getelementptr inbounds i8, ptr %tmp41.i, i64 %val263 %tmp.i.i = ptrtoint ptr %tmp4.i35.i to i6464 %tmp1.i.i = trunc i64 %tmp.i.i to i3265 %tmp3.i.i = trunc i64 %val to i3266 %tmp4.i.i = sub i32 %tmp1.i.i, %tmp3.i.i67 %tmp5.i.i = add i32 %tmp4.i.i, 1768 %tmp8.i.i = zext i32 %tmp5.i.i to i6469 %tmp.i20.i.i = tail call noalias ptr @malloc(i64 %tmp8.i.i) nounwind70 %tmp12.i.i = icmp eq ptr %tmp.i20.i.i, null71 br i1 %tmp12.i.i, label %_ZN4llvm14StringMapEntryIPvE6CreateINS_15MallocAllocatorES1_EEPS2_PKcS7_RT_T0_.exit.i, label %bb.i.i72 73bb.i.i: ; preds = %bb4.i74 store i32 %tmp4.i.i, ptr %tmp.i20.i.i, align 475 %tmp1.i19.i.i = getelementptr inbounds i8, ptr %tmp.i20.i.i, i64 876 store ptr null, ptr %tmp1.i19.i.i, align 877 br label %_ZN4llvm14StringMapEntryIPvE6CreateINS_15MallocAllocatorES1_EEPS2_PKcS7_RT_T0_.exit.i78 79_ZN4llvm14StringMapEntryIPvE6CreateINS_15MallocAllocatorES1_EEPS2_PKcS7_RT_T0_.exit.i: ; preds = %bb.i.i, %bb4.i80 %tmp.i18.i.i = getelementptr inbounds i8, ptr %tmp.i20.i.i, i64 1681 %tmp15.i.i = zext i32 %tmp4.i.i to i6482 tail call void @llvm.memcpy.p0.p0.i64(ptr %tmp.i18.i.i, ptr %tmp41.i, i64 %tmp15.i.i, i1 false)83 %tmp.i18.sum.i.i = add i64 %tmp15.i.i, 1684 %tmp17.i.i = getelementptr inbounds i8, ptr %tmp.i20.i.i, i64 %tmp.i18.sum.i.i85 store i8 0, ptr %tmp17.i.i, align 186 %tmp.i.i.i = getelementptr inbounds i8, ptr %tmp.i20.i.i, i64 887 store ptr null, ptr %tmp.i.i.i, align 888 %tmp22.i = load ptr, ptr %tmp7.i, align 889 %tmp24.i = icmp eq ptr %tmp22.i, inttoptr (i64 -1 to ptr)90 br i1 %tmp24.i, label %bb9.i, label %_ZN4llvm9StringMapIPvNS_15MallocAllocatorEE16GetOrCreateValueIS1_EERNS_14StringMapEntryIS1_EENS_9StringRefET_.exit91 92bb6.i: ; preds = %entry93 ret ptr %tmp8.i94 95bb9.i: ; preds = %_ZN4llvm14StringMapEntryIPvE6CreateINS_15MallocAllocatorES1_EEPS2_PKcS7_RT_T0_.exit.i96 %tmp25.i = getelementptr inbounds %"struct.llvm::StringMap<ptr,llvm::MallocAllocator>", ptr %this, i64 0, i32 0, i32 397 %tmp26.i = load i32, ptr %tmp25.i, align 898 %tmp27.i = add i32 %tmp26.i, -199 store i32 %tmp27.i, ptr %tmp25.i, align 8100 ret ptr %tmp.i20.i.i101 102_ZN4llvm9StringMapIPvNS_15MallocAllocatorEE16GetOrCreateValueIS1_EERNS_14StringMapEntryIS1_EENS_9StringRefET_.exit: ; preds = %_ZN4llvm14StringMapEntryIPvE6CreateINS_15MallocAllocatorES1_EEPS2_PKcS7_RT_T0_.exit.i103 ret ptr %tmp.i20.i.i104}105 106declare void @llvm.memcpy.p0.p0.i64(ptr nocapture, ptr nocapture, i64, i1) nounwind107;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:108; CHECK: {{.*}}109