forked from OSchip/llvm-project
210 lines
9.4 KiB
LLVM
210 lines
9.4 KiB
LLVM
; RUN: opt < %s -jump-threading -S | FileCheck %s
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; Test whether two consecutive switches with identical structures assign the
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; proper value to the proper variable. This is really testing
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; Instruction::isIdenticalToWhenDefined, as previously that function was
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; returning true if the value part of the operands of two phis were identical,
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; even if the incoming blocks were not.
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; NB: this function should be pruned down more.
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%struct._GList = type { i8*, %struct._GList*, %struct._GList* }
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%struct.filter_def = type { i8*, i8* }
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@capture_filters = external hidden global %struct._GList*, align 8
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@display_filters = external hidden global %struct._GList*, align 8
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@.str2 = external hidden unnamed_addr constant [10 x i8], align 1
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@__PRETTY_FUNCTION__.copy_filter_list = external hidden unnamed_addr constant [62 x i8], align 1
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@.str12 = external hidden unnamed_addr constant [22 x i8], align 1
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@.str13 = external hidden unnamed_addr constant [31 x i8], align 1
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@capture_edited_filters = external hidden global %struct._GList*, align 8
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@display_edited_filters = external hidden global %struct._GList*, align 8
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@__PRETTY_FUNCTION__.get_filter_list = external hidden unnamed_addr constant [44 x i8], align 1
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declare void @g_assertion_message(i8*, i8*, i32, i8*, i8*) noreturn
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declare void @g_free(i8*)
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declare %struct._GList* @g_list_first(%struct._GList*)
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declare noalias i8* @g_malloc(i64)
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define void @copy_filter_list(i32 %dest_type, i32 %src_type) nounwind uwtable ssp {
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entry:
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br label %do.body
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do.body: ; preds = %entry
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%cmp = icmp ne i32 %dest_type, %src_type
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br i1 %cmp, label %if.then, label %if.else
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if.then: ; preds = %do.body
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br label %if.end
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if.else: ; preds = %do.body
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call void @g_assertion_message_expr(i8* null, i8* getelementptr inbounds ([10 x i8]* @.str2, i32 0, i32 0), i32 581, i8* getelementptr inbounds ([62 x i8]* @__PRETTY_FUNCTION__.copy_filter_list, i32 0, i32 0), i8* getelementptr inbounds ([22 x i8]* @.str12, i32 0, i32 0)) noreturn
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unreachable
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if.end: ; preds = %if.then
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br label %do.end
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do.end: ; preds = %if.end
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switch i32 %dest_type, label %sw.default.i [
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i32 0, label %sw.bb.i
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i32 1, label %sw.bb1.i
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i32 2, label %sw.bb2.i
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i32 3, label %sw.bb3.i
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]
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sw.bb.i: ; preds = %do.end
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br label %get_filter_list.exit
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sw.bb1.i: ; preds = %do.end
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br label %get_filter_list.exit
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sw.bb2.i: ; preds = %do.end
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br label %get_filter_list.exit
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sw.bb3.i: ; preds = %do.end
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br label %get_filter_list.exit
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sw.default.i: ; preds = %do.end
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call void @g_assertion_message(i8* null, i8* getelementptr inbounds ([10 x i8]* @.str2, i32 0, i32 0), i32 408, i8* getelementptr inbounds ([44 x i8]* @__PRETTY_FUNCTION__.get_filter_list, i32 0, i32 0), i8* null) noreturn nounwind
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unreachable
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get_filter_list.exit: ; preds = %sw.bb3.i, %sw.bb2.i, %sw.bb1.i, %sw.bb.i
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%0 = phi %struct._GList** [ @display_edited_filters, %sw.bb3.i ], [ @capture_edited_filters, %sw.bb2.i ], [ @display_filters, %sw.bb1.i ], [ @capture_filters, %sw.bb.i ]
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switch i32 %src_type, label %sw.default.i5 [
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i32 0, label %sw.bb.i1
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i32 1, label %sw.bb1.i2
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i32 2, label %sw.bb2.i3
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i32 3, label %sw.bb3.i4
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]
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sw.bb.i1: ; preds = %get_filter_list.exit
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br label %get_filter_list.exit6
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sw.bb1.i2: ; preds = %get_filter_list.exit
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br label %get_filter_list.exit6
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sw.bb2.i3: ; preds = %get_filter_list.exit
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br label %get_filter_list.exit6
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sw.bb3.i4: ; preds = %get_filter_list.exit
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br label %get_filter_list.exit6
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sw.default.i5: ; preds = %get_filter_list.exit
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call void @g_assertion_message(i8* null, i8* getelementptr inbounds ([10 x i8]* @.str2, i32 0, i32 0), i32 408, i8* getelementptr inbounds ([44 x i8]* @__PRETTY_FUNCTION__.get_filter_list, i32 0, i32 0), i8* null) noreturn nounwind
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unreachable
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; CHECK: get_filter_list.exit
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get_filter_list.exit6: ; preds = %sw.bb3.i4, %sw.bb2.i3, %sw.bb1.i2, %sw.bb.i1
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%1 = phi %struct._GList** [ @display_edited_filters, %sw.bb3.i4 ], [ @capture_edited_filters, %sw.bb2.i3 ], [ @display_filters, %sw.bb1.i2 ], [ @capture_filters, %sw.bb.i1 ]
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; CHECK: %2 = load
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%2 = load %struct._GList** %1, align 8
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; We should have jump-threading insert an additional load here for the value
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; coming out of the first switch, which is picked up by a subsequent phi
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; CHECK: {{%\.pr = load %[^%]* %0}}
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; CHECK-NEXT: br label %while.cond
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br label %while.cond
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; CHECK: while.cond
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while.cond: ; preds = %while.body, %get_filter_list.exit6
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; CHECK: {{= phi .*%.pr}}
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%3 = load %struct._GList** %0, align 8
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; CHECK: tobool
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%tobool = icmp ne %struct._GList* %3, null
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br i1 %tobool, label %while.body, label %while.end
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while.body: ; preds = %while.cond
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%4 = load %struct._GList** %0, align 8
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%5 = load %struct._GList** %0, align 8
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%call2 = call %struct._GList* @g_list_first(%struct._GList* %5)
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%data.i = getelementptr inbounds %struct._GList* %call2, i32 0, i32 0
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%6 = load i8** %data.i, align 8
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%7 = bitcast i8* %6 to %struct.filter_def*
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%name.i = getelementptr inbounds %struct.filter_def* %7, i32 0, i32 0
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%8 = load i8** %name.i, align 8
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call void @g_free(i8* %8) nounwind
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%strval.i = getelementptr inbounds %struct.filter_def* %7, i32 0, i32 1
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%9 = load i8** %strval.i, align 8
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call void @g_free(i8* %9) nounwind
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%10 = bitcast %struct.filter_def* %7 to i8*
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call void @g_free(i8* %10) nounwind
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%call.i = call %struct._GList* @g_list_remove_link(%struct._GList* %4, %struct._GList* %call2) nounwind
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store %struct._GList* %call.i, %struct._GList** %0, align 8
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br label %while.cond
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while.end: ; preds = %while.cond
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br label %do.body4
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do.body4: ; preds = %while.end
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%11 = load %struct._GList** %0, align 8
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%call5 = call i32 @g_list_length(%struct._GList* %11)
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%cmp6 = icmp eq i32 %call5, 0
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br i1 %cmp6, label %if.then7, label %if.else8
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if.then7: ; preds = %do.body4
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br label %if.end9
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if.else8: ; preds = %do.body4
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call void @g_assertion_message_expr(i8* null, i8* getelementptr inbounds ([10 x i8]* @.str2, i32 0, i32 0), i32 600, i8* getelementptr inbounds ([62 x i8]* @__PRETTY_FUNCTION__.copy_filter_list, i32 0, i32 0), i8* getelementptr inbounds ([31 x i8]* @.str13, i32 0, i32 0)) noreturn
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unreachable
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if.end9: ; preds = %if.then7
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br label %do.end10
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do.end10: ; preds = %if.end9
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br label %while.cond11
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while.cond11: ; preds = %cond.end, %do.end10
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%cond10 = phi %struct._GList* [ %cond, %cond.end ], [ %2, %do.end10 ]
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%tobool12 = icmp ne %struct._GList* %cond10, null
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br i1 %tobool12, label %while.body13, label %while.end16
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while.body13: ; preds = %while.cond11
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%data = getelementptr inbounds %struct._GList* %cond10, i32 0, i32 0
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%12 = load i8** %data, align 8
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%13 = bitcast i8* %12 to %struct.filter_def*
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%14 = load %struct._GList** %0, align 8
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%name = getelementptr inbounds %struct.filter_def* %13, i32 0, i32 0
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%15 = load i8** %name, align 8
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%strval = getelementptr inbounds %struct.filter_def* %13, i32 0, i32 1
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%16 = load i8** %strval, align 8
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%call.i7 = call noalias i8* @g_malloc(i64 16) nounwind
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%17 = bitcast i8* %call.i7 to %struct.filter_def*
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%call1.i = call noalias i8* @g_strdup(i8* %15) nounwind
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%name.i8 = getelementptr inbounds %struct.filter_def* %17, i32 0, i32 0
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store i8* %call1.i, i8** %name.i8, align 8
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%call2.i = call noalias i8* @g_strdup(i8* %16) nounwind
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%strval.i9 = getelementptr inbounds %struct.filter_def* %17, i32 0, i32 1
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store i8* %call2.i, i8** %strval.i9, align 8
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%18 = bitcast %struct.filter_def* %17 to i8*
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%call3.i = call %struct._GList* @g_list_append(%struct._GList* %14, i8* %18) nounwind
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store %struct._GList* %call3.i, %struct._GList** %0, align 8
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%tobool15 = icmp ne %struct._GList* %cond10, null
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br i1 %tobool15, label %cond.true, label %cond.false
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cond.true: ; preds = %while.body13
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%next = getelementptr inbounds %struct._GList* %cond10, i32 0, i32 1
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%19 = load %struct._GList** %next, align 8
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br label %cond.end
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cond.false: ; preds = %while.body13
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br label %cond.end
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cond.end: ; preds = %cond.false, %cond.true
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%cond = phi %struct._GList* [ %19, %cond.true ], [ null, %cond.false ]
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br label %while.cond11
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while.end16: ; preds = %while.cond11
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ret void
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}
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declare void @g_assertion_message_expr(i8*, i8*, i32, i8*, i8*) noreturn
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declare i32 @g_list_length(%struct._GList*)
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declare noalias i8* @g_strdup(i8*)
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declare %struct._GList* @g_list_append(%struct._GList*, i8*)
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declare %struct._GList* @g_list_remove_link(%struct._GList*, %struct._GList*)
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