[mono] Fix a few corner case overflow operations #57407
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Comparison for overflow was incorrect because for example, (int8)-128.5 = -128, without overflows, even if -128.5 is smaller than the minimum integer. We use instead the float equality comparison between trunc (val) and (int)val.
mono_is_power_of_two is meant to be used only on unsigned numbers. In some cases we pass a signed value instead. This is typically not a problem because negative numbers are not detected as a power of two, except for the special number -2147483648, which is coded as 0x80000000, therefore a power of two.
BrzVlad
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imhameed,
lambdageek,
SamMonoRT and
vargaz
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failures on wasm are due to bug in emscripten |
lambdageek
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Aug 14, 2021
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This is good to be merged. The WASM lane failures are not caused by these changes. |
SamMonoRT
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Aug 16, 2021
This reverts commit e81efc8.
thaystg
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…information # By dotnet-maestro[bot] (4) and others # Via GitHub * origin/main: (58 commits) Localized file check-in by OneLocBuild Task (dotnet#57384) [debugger][wasm] Support DebuggerProxyAttribute (dotnet#56872) Account for type mismatch of `FIELD_LIST` members in LSRA (dotnet#57450) Qualify `sorted_table` allocation with `nothrow` (dotnet#57467) Rename transport packages to follow convention (dotnet#57504) Generate proper DWARF reg num for ARM32 (dotnet#57443) Enable System.Linq.Queryable and disable dotnet#50712 (dotnet#57464) Mark individual tests for 51211 (dotnet#57463) Fix Length for ReadOnlySequence created out of sliced Memory owned by MemoryManager (dotnet#57479) Add JsonConverter.Write/ReadAsPropertyName APIs (dotnet#57302) Remove workaround for dotnet/sdk#19482 (dotnet#57453) Do not drain HttpContentReadStream if the connection is disposed (dotnet#57287) [mono] Fix a few corner case overflow operations (dotnet#57407) make use of ports in SPN optional (dotnet#57159) Fixed H/3 stress server after the last Kestrel change (dotnet#57356) disable a failing stress test. (dotnet#57473) Eliminate temporary byte array allocations in the static constructor of `IPAddress`. (dotnet#57397) Update dependencies from https://github.com/dotnet/emsdk build 20210815.1 (dotnet#57447) [main] Update dependencies from mono/linker (dotnet#57344) Improve serializer performance (dotnet#57327) ... # Conflicts: # src/mono/wasm/debugger/BrowserDebugProxy/MemberReferenceResolver.cs # src/mono/wasm/debugger/BrowserDebugProxy/MonoProxy.cs # src/mono/wasm/debugger/BrowserDebugProxy/MonoSDBHelper.cs
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Fixes #51323