llvm-project/llvm/test/CodeGen/X86/2008-09-29-ReMatBug.ll

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; RUN: llc < %s -mtriple=i386-apple-darwin -relocation-model=pic -disable-fp-elim
%struct..0objc_selector = type opaque
%struct.NSString = type opaque
%struct.XCStringList = type { i32, %struct._XCStringListNode* }
%struct._XCStringListNode = type { [3 x i8], [0 x i8], i8 }
%struct.__builtin_CFString = type { i32*, i32, i8*, i32 }
internal constant %struct.__builtin_CFString { i32* getelementptr ([0 x i32], [0 x i32]* @__CFConstantStringClassReference, i32 0, i32 0), i32 1992, i8* getelementptr ([3 x i8], [3 x i8]* @"\01LC", i32 0, i32 0), i32 2 } ; <%struct.__builtin_CFString*>:0 [#uses=1]
@__CFConstantStringClassReference = external global [0 x i32] ; <[0 x i32]*> [#uses=1]
@"\01LC" = internal constant [3 x i8] c"NO\00" ; <[3 x i8]*> [#uses=1]
@"\01LC1" = internal constant [1 x i8] zeroinitializer ; <[1 x i8]*> [#uses=1]
@llvm.used1 = appending global [1 x i8*] [ i8* bitcast (%struct.NSString* (%struct.XCStringList*, %struct..0objc_selector*)* @"-[XCStringList stringRepresentation]" to i8*) ], section "llvm.metadata" ; <[1 x i8*]*> [#uses=0]
define %struct.NSString* @"-[XCStringList stringRepresentation]"(%struct.XCStringList* %self, %struct..0objc_selector* %_cmd) nounwind {
entry:
%0 = load i32, i32* null, align 4 ; <i32> [#uses=1]
%1 = and i32 %0, 16777215 ; <i32> [#uses=1]
%2 = icmp eq i32 %1, 0 ; <i1> [#uses=1]
br i1 %2, label %bb44, label %bb4
bb4: ; preds = %entry
%3 = load %struct._XCStringListNode*, %struct._XCStringListNode** null, align 4 ; <%struct._XCStringListNode*> [#uses=2]
%4 = icmp eq %struct._XCStringListNode* %3, null ; <i1> [#uses=1]
%5 = bitcast %struct._XCStringListNode* %3 to i32* ; <i32*> [#uses=1]
br label %bb37.outer
bb6: ; preds = %bb37
br label %bb19
bb19: ; preds = %bb37, %bb6
%.rle = phi i32 [ 0, %bb6 ], [ %10, %bb37 ] ; <i32> [#uses=1]
%bufptr.0.lcssa = phi i8* [ null, %bb6 ], [ null, %bb37 ] ; <i8*> [#uses=2]
%6 = and i32 %.rle, 16777215 ; <i32> [#uses=1]
%7 = icmp eq i32 %6, 0 ; <i1> [#uses=1]
br i1 %7, label %bb25.split, label %bb37
bb25.split: ; preds = %bb19
call void @foo(i8* getelementptr ([1 x i8], [1 x i8]* @"\01LC1", i32 0, i32 0)) nounwind nounwind
br label %bb35.outer
bb34: ; preds = %bb35, %bb35, %bb35, %bb35
[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction One of several parallel first steps to remove the target type of pointers, replacing them with a single opaque pointer type. This adds an explicit type parameter to the gep instruction so that when the first parameter becomes an opaque pointer type, the type to gep through is still available to the instructions. * This doesn't modify gep operators, only instructions (operators will be handled separately) * Textual IR changes only. Bitcode (including upgrade) and changing the in-memory representation will be in separate changes. * geps of vectors are transformed as: getelementptr <4 x float*> %x, ... ->getelementptr float, <4 x float*> %x, ... Then, once the opaque pointer type is introduced, this will ultimately look like: getelementptr float, <4 x ptr> %x with the unambiguous interpretation that it is a vector of pointers to float. * address spaces remain on the pointer, not the type: getelementptr float addrspace(1)* %x ->getelementptr float, float addrspace(1)* %x Then, eventually: getelementptr float, ptr addrspace(1) %x Importantly, the massive amount of test case churn has been automated by same crappy python code. I had to manually update a few test cases that wouldn't fit the script's model (r228970,r229196,r229197,r229198). The python script just massages stdin and writes the result to stdout, I then wrapped that in a shell script to handle replacing files, then using the usual find+xargs to migrate all the files. update.py: import fileinput import sys import re ibrep = re.compile(r"(^.*?[^%\w]getelementptr inbounds )(((?:<\d* x )?)(.*?)(| addrspace\(\d\)) *\*(|>)(?:$| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$))") normrep = re.compile( r"(^.*?[^%\w]getelementptr )(((?:<\d* x )?)(.*?)(| addrspace\(\d\)) *\*(|>)(?:$| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$))") def conv(match, line): if not match: return line line = match.groups()[0] if len(match.groups()[5]) == 0: line += match.groups()[2] line += match.groups()[3] line += ", " line += match.groups()[1] line += "\n" return line for line in sys.stdin: if line.find("getelementptr ") == line.find("getelementptr inbounds"): if line.find("getelementptr inbounds") != line.find("getelementptr inbounds ("): line = conv(re.match(ibrep, line), line) elif line.find("getelementptr ") != line.find("getelementptr ("): line = conv(re.match(normrep, line), line) sys.stdout.write(line) apply.sh: for name in "$@" do python3 `dirname "$0"`/update.py < "$name" > "$name.tmp" && mv "$name.tmp" "$name" rm -f "$name.tmp" done The actual commands: From llvm/src: find test/ -name *.ll | xargs ./apply.sh From llvm/src/tools/clang: find test/ -name *.mm -o -name *.m -o -name *.cpp -o -name *.c | xargs -I '{}' ../../apply.sh "{}" From llvm/src/tools/polly: find test/ -name *.ll | xargs ./apply.sh After that, check-all (with llvm, clang, clang-tools-extra, lld, compiler-rt, and polly all checked out). The extra 'rm' in the apply.sh script is due to a few files in clang's test suite using interesting unicode stuff that my python script was throwing exceptions on. None of those files needed to be migrated, so it seemed sufficient to ignore those cases. Reviewers: rafael, dexonsmith, grosser Differential Revision: http://reviews.llvm.org/D7636 llvm-svn: 230786
2015-02-28 03:29:02 +08:00
%8 = getelementptr i8, i8* %bufptr.0.lcssa, i32 %totalLength.0.ph ; <i8*> [#uses=1]
store i8 92, i8* %8, align 1
br label %bb35.outer
bb35.outer: ; preds = %bb34, %bb25.split
%totalLength.0.ph = add i32 0, %totalLength.1.ph ; <i32> [#uses=2]
br label %bb35
bb35: ; preds = %bb35, %bb35.outer
%9 = load i8, i8* null, align 1 ; <i8> [#uses=1]
switch i8 %9, label %bb35 [
i8 0, label %bb37.outer
i8 32, label %bb34
i8 92, label %bb34
i8 34, label %bb34
i8 39, label %bb34
]
bb37.outer: ; preds = %bb35, %bb4
%totalLength.1.ph = phi i32 [ 0, %bb4 ], [ %totalLength.0.ph, %bb35 ] ; <i32> [#uses=1]
%bufptr.1.ph = phi i8* [ null, %bb4 ], [ %bufptr.0.lcssa, %bb35 ] ; <i8*> [#uses=2]
br i1 %4, label %bb39.split, label %bb37
bb37: ; preds = %bb37.outer, %bb19
%10 = load i32, i32* %5, align 4 ; <i32> [#uses=1]
br i1 false, label %bb6, label %bb19
bb39.split: ; preds = %bb37.outer
%11 = bitcast i8* null to %struct.NSString* ; <%struct.NSString*> [#uses=2]
%12 = icmp eq i8* null, %bufptr.1.ph ; <i1> [#uses=1]
br i1 %12, label %bb44, label %bb42
bb42: ; preds = %bb39.split
call void @quux(i8* %bufptr.1.ph) nounwind nounwind
ret %struct.NSString* %11
bb44: ; preds = %bb39.split, %entry
%.0 = phi %struct.NSString* [ bitcast (%struct.__builtin_CFString* @0 to %struct.NSString*), %entry ], [ %11, %bb39.split ] ; <%struct.NSString*> [#uses=1]
ret %struct.NSString* %.0
}
declare void @foo(i8*)
declare void @quux(i8*)