[Bug 361] Arithmetic problems
bugzilla-daemon at icedtea.classpath.org
bugzilla-daemon at icedtea.classpath.org
Tue Jul 7 03:34:51 PDT 2009
http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=361
------- Comment #10 from interface at bitoffice.at 2009-07-07 10:34 -------
Here it is, I hope it helps:
# java -XX:+SharkTraceInstalls -XX:SharkPrintBitcodeOf=ArithFail::convertValue
-XX:SharkPrintAsmOf=ArithFail::convertValue ArithFail
[0x6e9da010-0x6e9da314): java.lang.String::charAt (772 bytes code)
[0x6e9da320-0x6e9da7c4): java.lang.String::hashCode (1188 bytes code)
[0x6e9da7d0-0x6e9db068): java.lang.String::indexOf (2200 bytes code)
[0x6e9db070-0x6e9db1cc): java.lang.Object::<init> (348 bytes code)
[0x6e9db1d0-0x6e9db3d0): java.lang.Number::<init> (512 bytes code)
[0x6e9db3f8-0x6e9db7c8): ArithFail::calculate (976 bytes code)
[0x6e9db7d0-0x6e9dbb44): ArithFail::getVoltage (884 bytes code)
define internal void @"ArithFail::convertValue"([84 x i8]* %method, i32
%base_pc, [788 x i8]* %thread) {
%1 = getelementptr [788 x i8]* %thread, i32 0, i32 756 ; <i8*>
[#uses=1]
%zero_stack = bitcast i8* %1 to [12 x i8]* ; <[12 x i8]*>
[#uses=2]
%2 = getelementptr [12 x i8]* %zero_stack, i32 0, i32 0 ; <i8*>
[#uses=1]
%3 = bitcast i8* %2 to i32* ; <i32*> [#uses=1]
%zero_stack_base = load i32* %3 ; <i32> [#uses=1]
%4 = getelementptr [12 x i8]* %zero_stack, i32 0, i32 8 ; <i8*>
[#uses=1]
%zero_stack_pointer_addr = bitcast i8* %4 to i32* ;
<i32*> [#uses=5]
%5 = getelementptr [788 x i8]* %thread, i32 0, i32 768 ; <i8*>
[#uses=1]
%zero_frame_pointer_addr = bitcast i8* %5 to i32* ;
<i32*> [#uses=7]
%6 = load i32* %zero_stack_pointer_addr ; <i32> [#uses=1]
%7 = sub i32 %6, 32 ; <i32> [#uses=4]
%8 = icmp ult i32 %7, %zero_stack_base ; <i1> [#uses=1]
br i1 %8, label %stack_overflow, label %no_overflow
stack_overflow: ; preds = %0
call void @report_unimplemented(i32 ptrtoint (i32*
@pointer_constant_0xfbe586c24 to i32), i32 181)
unreachable
no_overflow: ; preds = %0
store i32 %7, i32* %zero_stack_pointer_addr
%frame = inttoptr i32 %7 to [10 x i32]* ; <[10 x i32]*>
[#uses=14]
%9 = getelementptr [10 x i32]* %frame, i32 0, i32 2 ;
<i32*> [#uses=1]
%exception_slot = bitcast i32* %9 to [8 x i8]** ; <[8 x i8]**>
[#uses=1]
store [8 x i8]* null, [8 x i8]** %exception_slot
%10 = getelementptr [10 x i32]* %frame, i32 0, i32 4 ;
<i32*> [#uses=1]
store i32 %7, i32* %10
%11 = getelementptr [10 x i32]* %frame, i32 0, i32 6 ;
<i32*> [#uses=1]
store i32 -889275712, i32* %11
%12 = getelementptr [10 x i32]* %frame, i32 0, i32 7 ;
<i32*> [#uses=2]
%13 = load i32* %zero_frame_pointer_addr ; <i32>
[#uses=1]
store i32 %13, i32* %12
%14 = ptrtoint i32* %12 to i32 ; <i32> [#uses=1]
store i32 %14, i32* %zero_frame_pointer_addr
%15 = getelementptr [10 x i32]* %frame, i32 0, i32 3 ;
<i32*> [#uses=1]
%method_slot = bitcast i32* %15 to [84 x i8]** ; <[84 x i8]**>
[#uses=1]
store [84 x i8]* %method, [84 x i8]** %method_slot
%16 = getelementptr [10 x i32]* %frame, i32 0, i32 9 ;
<i32*> [#uses=1]
%17 = bitcast i32* %16 to [8 x i8]** ; <[8 x i8]**>
[#uses=1]
%18 = load [8 x i8]** %17 ; <[8 x i8]*> [#uses=1]
%19 = getelementptr [10 x i32]* %frame, i32 0, i32 8 ;
<i32*> [#uses=1]
%20 = load i32* %19 ; <i32> [#uses=3]
br label %bci_0
bci_0: ; preds = %no_overflow
%21 = sitofp i32 %20 to float ; <float> [#uses=1]
%22 = mul float %21, 0x3F74050140000000 ; <float> [#uses=2]
%state = load i32* inttoptr (i32 ptrtoint (i32*
@pointer_constant_0xfd541b025 to i32) to i32*) ; <i32> [#uses=1]
%23 = icmp eq i32 %state, 1 ; <i1> [#uses=1]
br i1 %23, label %do_safepoint, label %safepointed
do_safepoint: ; preds = %bci_0
%24 = getelementptr [10 x i32]* %frame, i32 0, i32 1 ;
<i32*> [#uses=1]
%25 = ptrtoint i32* %24 to i32 ; <i32> [#uses=1]
store i32 %25, i32* %zero_stack_pointer_addr
%26 = getelementptr [10 x i32]* %frame, i32 0, i32 3 ;
<i32*> [#uses=1]
%27 = bitcast i32* %26 to [84 x i8]** ; <[84 x i8]**>
[#uses=1]
store [84 x i8]* %method, [84 x i8]** %27
%28 = add i32 %base_pc, 12 ; <i32> [#uses=1]
%29 = getelementptr [10 x i32]* %frame, i32 0, i32 5 ;
<i32*> [#uses=1]
store i32 %28, i32* %29
%30 = load i32* %zero_frame_pointer_addr ; <i32>
[#uses=1]
%31 = getelementptr [788 x i8]* %thread, i32 0, i32 280 ; <i8*>
[#uses=1]
%last_Java_sp_addr = bitcast i8* %31 to i32* ; <i32*>
[#uses=1]
store i32 %30, i32* %last_Java_sp_addr
call void @SafepointSynchronize__block([788 x i8]* %thread)
%32 = getelementptr [788 x i8]* %thread, i32 0, i32 280 ; <i8*>
[#uses=1]
%last_Java_sp_addr1 = bitcast i8* %32 to i32* ; <i32*>
[#uses=1]
store i32 0, i32* %last_Java_sp_addr1
%33 = getelementptr [10 x i32]* %frame, i32 0, i32 3 ;
<i32*> [#uses=1]
%34 = bitcast i32* %33 to [84 x i8]** ; <[84 x i8]**>
[#uses=1]
%35 = load [84 x i8]** %34 ; <[84 x i8]*> [#uses=1]
%36 = getelementptr [10 x i32]* %frame, i32 0, i32 9 ;
<i32*> [#uses=1]
%37 = bitcast i32* %36 to [8 x i8]** ; <[8 x i8]**>
[#uses=1]
%38 = load [8 x i8]** %37 ; <[8 x i8]*> [#uses=1]
%39 = getelementptr [788 x i8]* %thread, i32 0, i32 4 ; <i8*>
[#uses=1]
%pending_exception_addr = bitcast i8* %39 to [8 x i8]** ; <[8 x
i8]**> [#uses=2]
%pending_exception = load [8 x i8]** %pending_exception_addr
; <[8 x i8]*> [#uses=2]
%40 = icmp eq [8 x i8]* %pending_exception, null ; <i1>
[#uses=1]
br i1 %40, label %no_exception, label %exception
safepointed: ; preds = %no_exception, %bci_0
%method5 = phi [84 x i8]* [ %35, %no_exception ], [ %method, %bci_0 ]
; <[84 x i8]*> [#uses=0]
%local_0_ = phi [8 x i8]* [ %38, %no_exception ], [ %18, %bci_0 ]
; <[8 x i8]*> [#uses=0]
%local_1_ = phi i32 [ %20, %no_exception ], [ %20, %bci_0 ]
; <i32> [#uses=0]
%stack_0_ = phi float [ %22, %no_exception ], [ %22, %bci_0 ]
; <float> [#uses=1]
%41 = load i32* %zero_frame_pointer_addr ; <i32>
[#uses=2]
%42 = add i32 %41, 8 ; <i32> [#uses=2]
store i32 %42, i32* %zero_stack_pointer_addr
%43 = inttoptr i32 %41 to i32* ; <i32*> [#uses=1]
%44 = load i32* %43 ; <i32> [#uses=1]
store i32 %44, i32* %zero_frame_pointer_addr
%45 = inttoptr i32 %42 to float* ; <float*> [#uses=1]
store float %stack_0_, float* %45
ret void
exception: ; preds = %do_safepoint
store [8 x i8]* null, [8 x i8]** %pending_exception_addr
%46 = getelementptr [10 x i32]* %frame, i32 0, i32 2 ;
<i32*> [#uses=1]
%exception_slot2 = bitcast i32* %46 to [8 x i8]** ; <[8 x
i8]**> [#uses=1]
store [8 x i8]* %pending_exception, [8 x i8]** %exception_slot2
%47 = getelementptr [10 x i32]* %frame, i32 0, i32 2 ;
<i32*> [#uses=1]
%exception_slot3 = bitcast i32* %47 to [8 x i8]** ; <[8 x
i8]**> [#uses=1]
%48 = load [8 x i8]** %exception_slot3 ; <[8 x i8]*> [#uses=1]
%49 = getelementptr [788 x i8]* %thread, i32 0, i32 4 ; <i8*>
[#uses=1]
%pending_exception_addr4 = bitcast i8* %49 to [8 x i8]**
; <[8 x i8]**> [#uses=1]
store [8 x i8]* %48, [8 x i8]** %pending_exception_addr4
%50 = load i32* %zero_frame_pointer_addr ; <i32>
[#uses=2]
%51 = add i32 %50, 12 ; <i32> [#uses=1]
store i32 %51, i32* %zero_stack_pointer_addr
%52 = inttoptr i32 %50 to i32* ; <i32*> [#uses=1]
%53 = load i32* %52 ; <i32> [#uses=1]
store i32 %53, i32* %zero_frame_pointer_addr
ret void
no_exception: ; preds = %do_safepoint
br label %safepointed
}
[0x6e9dbb58-0x6e9dbcf4): ArithFail::convertValue (412 bytes code)
[0x6e9dbd08-0x6e9dbe74): ArithFail::getRSerial (364 bytes code)
[0x6e9dbe88-0x6e9dbff4): ArithFail::getU0 (364 bytes code)
[0x6e9dc000-0x6e9dc188): java.lang.Math::sqrt (392 bytes code)
[0x6e9dc190-0x6e9dc4f0): java.lang.Float::valueOf (864 bytes code)
[0x6e9dc500-0x6e9dc71c): java.lang.Float::<init> (540 bytes code)
[0x6e9dc720-0x6e9dc888): java.lang.Float::floatValue (360 bytes code)
Failed with 1.514903 after 1617 iterations
1950.2075
1950.2075
true
0.9928497
0.97510374
false
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