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llvm-mirror/test/CodeGen/X86/2008-09-29-ReMatBug.ll
Rafael Espindola 3560edede3 Make "@name =" mandatory for globals in .ll files.
An oddity of the .ll syntax is that the "@var = " in

@var = global i32 42

is optional. Writing just

global i32 42

is equivalent to

@0 = global i32 42

This means that there is a pretty big First set at the top level. The
current implementation maintains it manually. I was trying to refactor
it, but then started wondering why keep it a all. I personally find the
above syntax confusing. It looks like something is missing.

This patch removes the feature and simplifies the parser.

llvm-svn: 269096
2016-05-10 18:22:45 +00:00

86 lines
3.6 KiB
LLVM

; 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 }
@0 = 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
%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*)