crash.ll
3.09 KB
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; RUN: opt < %s -basic-aa -dse -enable-dse-memoryssa -S
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
target triple = "i386-apple-darwin10.0"
@g80 = external global i8 ; <i8*> [#uses=3]
declare signext i8 @foo(i8 signext, i8 signext) nounwind readnone ssp
declare i32 @func68(i32) nounwind readonly ssp
; PR4815
define void @test1(i32 %int32p54) noreturn nounwind ssp {
entry:
br label %bb
bb: ; preds = %bb, %entry
%storemerge = phi i8 [ %2, %bb ], [ 1, %entry ] ; <i8> [#uses=1]
store i8 %storemerge, i8* @g80
%0 = tail call i32 @func68(i32 1) nounwind ssp ; <i32> [#uses=1]
%1 = trunc i32 %0 to i8 ; <i8> [#uses=1]
store i8 %1, i8* @g80, align 1
store i8 undef, i8* @g80, align 1
%2 = tail call signext i8 @foo(i8 signext undef, i8 signext 1) nounwind ; <i8> [#uses=1]
br label %bb
}
define fastcc i32 @test2() nounwind ssp {
bb14: ; preds = %bb4
%0 = bitcast i8* undef to i8** ; <i8**> [#uses=1]
%1 = getelementptr inbounds i8*, i8** %0, i64 undef ; <i8**> [#uses=1]
%2 = bitcast i8** %1 to i16* ; <i16*> [#uses=2]
%3 = getelementptr inbounds i16, i16* %2, i64 undef ; <i16*> [#uses=1]
%4 = bitcast i16* %3 to i8* ; <i8*> [#uses=1]
%5 = getelementptr inbounds i8, i8* %4, i64 undef ; <i8*> [#uses=1]
%6 = getelementptr inbounds i16, i16* %2, i64 undef ; <i16*> [#uses=1]
store i16 undef, i16* %6, align 2
%7 = getelementptr inbounds i8, i8* %5, i64 undef ; <i8*> [#uses=1]
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %7, i8* undef, i64 undef, i1 false)
unreachable
}
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i1) nounwind
; rdar://7635088
define i32 @test3() {
entry:
ret i32 0
dead:
%P2 = getelementptr i32, i32 *%P2, i32 52
%Q2 = getelementptr i32, i32 *%Q2, i32 52
store i32 4, i32* %P2
store i32 4, i32* %Q2
br label %dead
}
; PR3141
%struct.ada__tags__dispatch_table = type { [1 x i32] }
%struct.f393a00_1__object = type { %struct.ada__tags__dispatch_table*, i8 }
%struct.f393a00_2__windmill = type { %struct.f393a00_1__object, i16 }
define void @test4(%struct.f393a00_2__windmill* %a, %struct.f393a00_2__windmill* %b) {
entry:
%t = alloca %struct.f393a00_2__windmill ; <%struct.f393a00_2__windmill*> [#uses=1]
%0 = getelementptr %struct.f393a00_2__windmill, %struct.f393a00_2__windmill* %t, i32 0, i32 0, i32 0 ; <%struct.ada__tags__dispatch_table**> [#uses=1]
%1 = load %struct.ada__tags__dispatch_table*, %struct.ada__tags__dispatch_table** null, align 4 ; <%struct.ada__tags__dispatch_table*> [#uses=1]
%2 = load %struct.ada__tags__dispatch_table*, %struct.ada__tags__dispatch_table** %0, align 8 ; <%struct.ada__tags__dispatch_table*> [#uses=1]
store %struct.ada__tags__dispatch_table* %2, %struct.ada__tags__dispatch_table** null, align 4
store %struct.ada__tags__dispatch_table* %1, %struct.ada__tags__dispatch_table** null, align 4
ret void
}