From 4323665bd857c0527b50463d415d9e76493ad2fe Mon Sep 17 00:00:00 2001 From: Jan Wen Voung Date: Tue, 12 Mar 2013 16:27:52 +0000 Subject: Revert the test moves from 176733. Use "REQUIRES: asserts" instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176873 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/Transforms/GVN/nonescaping-malloc.ll | 109 ++++++++++++++++++++++++++++++ 1 file changed, 109 insertions(+) create mode 100644 test/Transforms/GVN/nonescaping-malloc.ll (limited to 'test/Transforms/GVN/nonescaping-malloc.ll') diff --git a/test/Transforms/GVN/nonescaping-malloc.ll b/test/Transforms/GVN/nonescaping-malloc.ll new file mode 100644 index 0000000000..c2eeed56ff --- /dev/null +++ b/test/Transforms/GVN/nonescaping-malloc.ll @@ -0,0 +1,109 @@ +; REQUIRES: asserts +; RUN: opt < %s -basicaa -gvn -stats -disable-output 2>&1 | grep "Number of loads deleted" +; rdar://7363102 + +; GVN should be able to eliminate load %tmp22.i, because it is redundant with +; load %tmp8.i. This requires being able to prove that %tmp7.i doesn't +; alias the malloc'd value %tmp.i20.i.i, which it can do since %tmp7.i +; is derived from %tmp5.i which is computed from a load, and %tmp.i20.i.i +; is never stored and does not escape. + +target 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" +target triple = "x86_64-apple-darwin10.0" + +%"struct.llvm::MallocAllocator" = type <{ i8 }> +%"struct.llvm::StringMap" = type { %"struct.llvm::StringMapImpl", %"struct.llvm::MallocAllocator" } +%"struct.llvm::StringMapEntry" = type { %"struct.llvm::StringMapEntryBase", i8* } +%"struct.llvm::StringMapEntryBase" = type { i32 } +%"struct.llvm::StringMapImpl" = type { %"struct.llvm::StringMapImpl::ItemBucket"*, i32, i32, i32, i32 } +%"struct.llvm::StringMapImpl::ItemBucket" = type { i32, %"struct.llvm::StringMapEntryBase"* } +%"struct.llvm::StringRef" = type { i8*, i64 } + +define %"struct.llvm::StringMapEntry"* @_Z3fooRN4llvm9StringMapIPvNS_15MallocAllocatorEEEPKc(%"struct.llvm::StringMap"* %X, i8* %P) ssp { +entry: + %tmp = alloca %"struct.llvm::StringRef", align 8 + %tmp.i = getelementptr inbounds %"struct.llvm::StringRef"* %tmp, i64 0, i32 0 + store i8* %P, i8** %tmp.i, align 8 + %tmp1.i = call i64 @strlen(i8* %P) nounwind readonly + %tmp2.i = getelementptr inbounds %"struct.llvm::StringRef"* %tmp, i64 0, i32 1 + store i64 %tmp1.i, i64* %tmp2.i, align 8 + %tmp1 = call %"struct.llvm::StringMapEntry"* @_ZN4llvm9StringMapIPvNS_15MallocAllocatorEE16GetOrCreateValueERKNS_9StringRefE(%"struct.llvm::StringMap"* %X, %"struct.llvm::StringRef"* %tmp) ssp + ret %"struct.llvm::StringMapEntry"* %tmp1 +} + +declare i64 @strlen(i8* nocapture) nounwind readonly + +declare noalias i8* @malloc(i64) nounwind + +declare i32 @_ZN4llvm13StringMapImpl15LookupBucketForENS_9StringRefE(%"struct.llvm::StringMapImpl"*, i64, i64) + +define linkonce_odr %"struct.llvm::StringMapEntry"* @_ZN4llvm9StringMapIPvNS_15MallocAllocatorEE16GetOrCreateValueERKNS_9StringRefE(%"struct.llvm::StringMap"* %this, %"struct.llvm::StringRef"* nocapture %Key) ssp align 2 { +entry: + %elt = bitcast %"struct.llvm::StringRef"* %Key to i64* + %val = load i64* %elt + %tmp = getelementptr inbounds %"struct.llvm::StringRef"* %Key, i64 0, i32 1 + %val2 = load i64* %tmp + %tmp2.i = getelementptr inbounds %"struct.llvm::StringMap"* %this, i64 0, i32 0 + %tmp3.i = tail call i32 @_ZN4llvm13StringMapImpl15LookupBucketForENS_9StringRefE(%"struct.llvm::StringMapImpl"* %tmp2.i, i64 %val, i64 %val2) + %tmp4.i = getelementptr inbounds %"struct.llvm::StringMap"* %this, i64 0, i32 0, i32 0 + %tmp5.i = load %"struct.llvm::StringMapImpl::ItemBucket"** %tmp4.i, align 8 + %tmp6.i = zext i32 %tmp3.i to i64 + %tmp7.i = getelementptr inbounds %"struct.llvm::StringMapImpl::ItemBucket"* %tmp5.i, i64 %tmp6.i, i32 1 + %tmp8.i = load %"struct.llvm::StringMapEntryBase"** %tmp7.i, align 8 + %tmp9.i = icmp eq %"struct.llvm::StringMapEntryBase"* %tmp8.i, null + %tmp13.i = icmp eq %"struct.llvm::StringMapEntryBase"* %tmp8.i, inttoptr (i64 -1 to %"struct.llvm::StringMapEntryBase"*) + %or.cond.i = or i1 %tmp9.i, %tmp13.i + br i1 %or.cond.i, label %bb4.i, label %bb6.i + +bb4.i: ; preds = %entry + %tmp41.i = inttoptr i64 %val to i8* + %tmp4.i35.i = getelementptr inbounds i8* %tmp41.i, i64 %val2 + %tmp.i.i = ptrtoint i8* %tmp4.i35.i to i64 + %tmp1.i.i = trunc i64 %tmp.i.i to i32 + %tmp3.i.i = trunc i64 %val to i32 + %tmp4.i.i = sub i32 %tmp1.i.i, %tmp3.i.i + %tmp5.i.i = add i32 %tmp4.i.i, 17 + %tmp8.i.i = zext i32 %tmp5.i.i to i64 + %tmp.i20.i.i = tail call noalias i8* @malloc(i64 %tmp8.i.i) nounwind + %tmp10.i.i = bitcast i8* %tmp.i20.i.i to %"struct.llvm::StringMapEntry"* + %tmp12.i.i = icmp eq i8* %tmp.i20.i.i, null + br i1 %tmp12.i.i, label %_ZN4llvm14StringMapEntryIPvE6CreateINS_15MallocAllocatorES1_EEPS2_PKcS7_RT_T0_.exit.i, label %bb.i.i + +bb.i.i: ; preds = %bb4.i + %tmp.i.i.i.i = bitcast i8* %tmp.i20.i.i to i32* + store i32 %tmp4.i.i, i32* %tmp.i.i.i.i, align 4 + %tmp1.i19.i.i = getelementptr inbounds i8* %tmp.i20.i.i, i64 8 + %0 = bitcast i8* %tmp1.i19.i.i to i8** + store i8* null, i8** %0, align 8 + br label %_ZN4llvm14StringMapEntryIPvE6CreateINS_15MallocAllocatorES1_EEPS2_PKcS7_RT_T0_.exit.i + +_ZN4llvm14StringMapEntryIPvE6CreateINS_15MallocAllocatorES1_EEPS2_PKcS7_RT_T0_.exit.i: ; preds = %bb.i.i, %bb4.i + %tmp.i18.i.i = getelementptr inbounds i8* %tmp.i20.i.i, i64 16 + %tmp15.i.i = zext i32 %tmp4.i.i to i64 + tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %tmp.i18.i.i, i8* %tmp41.i, i64 %tmp15.i.i, i32 1, i1 false) + %tmp.i18.sum.i.i = add i64 %tmp15.i.i, 16 + %tmp17.i.i = getelementptr inbounds i8* %tmp.i20.i.i, i64 %tmp.i18.sum.i.i + store i8 0, i8* %tmp17.i.i, align 1 + %tmp.i.i.i = getelementptr inbounds i8* %tmp.i20.i.i, i64 8 + %1 = bitcast i8* %tmp.i.i.i to i8** + store i8* null, i8** %1, align 8 + %tmp22.i = load %"struct.llvm::StringMapEntryBase"** %tmp7.i, align 8 + %tmp24.i = icmp eq %"struct.llvm::StringMapEntryBase"* %tmp22.i, inttoptr (i64 -1 to %"struct.llvm::StringMapEntryBase"*) + br i1 %tmp24.i, label %bb9.i, label %_ZN4llvm9StringMapIPvNS_15MallocAllocatorEE16GetOrCreateValueIS1_EERNS_14StringMapEntryIS1_EENS_9StringRefET_.exit + +bb6.i: ; preds = %entry + %tmp16.i = bitcast %"struct.llvm::StringMapEntryBase"* %tmp8.i to %"struct.llvm::StringMapEntry"* + ret %"struct.llvm::StringMapEntry"* %tmp16.i + +bb9.i: ; preds = %_ZN4llvm14StringMapEntryIPvE6CreateINS_15MallocAllocatorES1_EEPS2_PKcS7_RT_T0_.exit.i + %tmp25.i = getelementptr inbounds %"struct.llvm::StringMap"* %this, i64 0, i32 0, i32 3 + %tmp26.i = load i32* %tmp25.i, align 8 + %tmp27.i = add i32 %tmp26.i, -1 + store i32 %tmp27.i, i32* %tmp25.i, align 8 + ret %"struct.llvm::StringMapEntry"* %tmp10.i.i + +_ZN4llvm9StringMapIPvNS_15MallocAllocatorEE16GetOrCreateValueIS1_EERNS_14StringMapEntryIS1_EENS_9StringRefET_.exit: ; preds = %_ZN4llvm14StringMapEntryIPvE6CreateINS_15MallocAllocatorES1_EEPS2_PKcS7_RT_T0_.exit.i + ret %"struct.llvm::StringMapEntry"* %tmp10.i.i +} + +declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind -- cgit v1.2.3