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llvm-mirror/test/Transforms/GVN/nonescaping-malloc.ll
Chandler Carruth 8a358b3669 Convert all tests using TCL-style quoting to use shell-style quoting.
This was done through the aid of a terrible Perl creation. I will not
paste any of the horrors here. Suffice to say, it require multiple
staged rounds of replacements, state carried between, and a few
nested-construct-parsing hacks that I'm not proud of. It happens, by
luck, to be able to deal with all the TCL-quoting patterns in evidence
in the LLVM test suite.

If anyone is maintaining large out-of-tree test trees, feel free to poke
me and I'll send you the steps I used to convert things, as well as
answer any painful questions etc. IRC works best for this type of thing
I find.

Once converted, switch the LLVM lit config to use ShTests the same as
Clang. In addition to being able to delete large amounts of Python code
from 'lit', this will also simplify the entire test suite and some of
lit's architecture.

Finally, the test suite runs 33% faster on Linux now. ;]
For my 16-hardware-thread (2x 4-core xeon e5520): 36s -> 24s

llvm-svn: 159525
2012-07-02 12:47:22 +00:00

109 lines
6.6 KiB
LLVM

; RUN: opt < %s -basicaa -gvn -stats -disable-output |& 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<void*,llvm::MallocAllocator>" = type { %"struct.llvm::StringMapImpl", %"struct.llvm::MallocAllocator" }
%"struct.llvm::StringMapEntry<void*>" = 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<void*>"* @_Z3fooRN4llvm9StringMapIPvNS_15MallocAllocatorEEEPKc(%"struct.llvm::StringMap<void*,llvm::MallocAllocator>"* %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<void*>"* @_ZN4llvm9StringMapIPvNS_15MallocAllocatorEE16GetOrCreateValueERKNS_9StringRefE(%"struct.llvm::StringMap<void*,llvm::MallocAllocator>"* %X, %"struct.llvm::StringRef"* %tmp) ssp
ret %"struct.llvm::StringMapEntry<void*>"* %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<void*>"* @_ZN4llvm9StringMapIPvNS_15MallocAllocatorEE16GetOrCreateValueERKNS_9StringRefE(%"struct.llvm::StringMap<void*,llvm::MallocAllocator>"* %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<void*,llvm::MallocAllocator>"* %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<void*,llvm::MallocAllocator>"* %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<void*>"*
%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<void*>"*
ret %"struct.llvm::StringMapEntry<void*>"* %tmp16.i
bb9.i: ; preds = %_ZN4llvm14StringMapEntryIPvE6CreateINS_15MallocAllocatorES1_EEPS2_PKcS7_RT_T0_.exit.i
%tmp25.i = getelementptr inbounds %"struct.llvm::StringMap<void*,llvm::MallocAllocator>"* %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<void*>"* %tmp10.i.i
_ZN4llvm9StringMapIPvNS_15MallocAllocatorEE16GetOrCreateValueIS1_EERNS_14StringMapEntryIS1_EENS_9StringRefET_.exit: ; preds = %_ZN4llvm14StringMapEntryIPvE6CreateINS_15MallocAllocatorES1_EEPS2_PKcS7_RT_T0_.exit.i
ret %"struct.llvm::StringMapEntry<void*>"* %tmp10.i.i
}
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind