Assertion failed: isRegBase() && "Invalid base register access!"

yowl commented 4 years ago


Bugzilla Link	47040
Resolution	FIXED
Resolved on	Aug 09, 2020 15:15
Version	11.0
OS	Windows NT
Attachments	Source LLVM produced by CoreRT compiler (I work occasionally on CoreRT)
CC	@dschuff,@zygoloid,@tlively
Fixed by commit(s)	cc612c29084e907900ce63ad9031ab573a64e942

Extended Description

Compiling the attached LLVM bitcode fails with the message in summary.

clang++ is version 11.0.0 Stack is

Code generation
Running pass 'Function Pass Manager' on module 'e:\b.bc'.
Running pass 'WebAssembly Instruction Selection' on function '@System_Net_NameResolution_Interop_Sys_IPAddress__Equals'
0 0x00007ff789c88146 (E:\GitHub\emsdk\upstream\bin\clang++.exe+0x10a8146)

1 0x00007ffe6ef81861 (C:\WINDOWS\System32\ucrtbase.dll+0x71861)

2 0x00007ffe6ef82831 (C:\WINDOWS\System32\ucrtbase.dll+0x72831)

3 0x00007ffe6ef8424e (C:\WINDOWS\System32\ucrtbase.dll+0x7424e)

4 0x00007ffe6ef84145 (C:\WINDOWS\System32\ucrtbase.dll+0x74145)

5 0x00007ffe6ef844d1 (C:\WINDOWS\System32\ucrtbase.dll+0x744d1)

6 0x00007ff789014300 (E:\GitHub\emsdk\upstream\bin\clang++.exe+0x434300)

7 0x00007ff789014219 (E:\GitHub\emsdk\upstream\bin\clang++.exe+0x434219)

8 0x00007ff789013872 (E:\GitHub\emsdk\upstream\bin\clang++.exe+0x433872)

9 0x00007ff789013872 (E:\GitHub\emsdk\upstream\bin\clang++.exe+0x433872)

10 0x00007ff78900a597 (E:\GitHub\emsdk\upstream\bin\clang++.exe+0x42a597)

11 0x00007ff78aa62bcf (E:\GitHub\emsdk\upstream\bin\clang++.exe+0x1e82bcf)

12 0x00007ff78a8c4366 (E:\GitHub\emsdk\upstream\bin\clang++.exe+0x1ce4366)

13 0x00007ff78a8c09df (E:\GitHub\emsdk\upstream\bin\clang++.exe+0x1ce09df)

14 0x00007ff788fed8e0 (E:\GitHub\emsdk\upstream\bin\clang++.exe+0x40d8e0)

15 0x00007ff7892bbbce (E:\GitHub\emsdk\upstream\bin\clang++.exe+0x6dbbce)

16 0x00007ff7895ef8b4 (E:\GitHub\emsdk\upstream\bin\clang++.exe+0xa0f8b4)

17 0x00007ff7895efc03 (E:\GitHub\emsdk\upstream\bin\clang++.exe+0xa0fc03)

18 0x00007ff7895f02ed (E:\GitHub\emsdk\upstream\bin\clang++.exe+0xa102ed)

19 0x00007ff789f65920 (E:\GitHub\emsdk\upstream\bin\clang++.exe+0x1385920)

20 0x00007ff78c6cffdd (E:\GitHub\emsdk\upstream\bin\clang++.exe+0x3aeffdd)

21 0x00007ff78a53d215 (E:\GitHub\emsdk\upstream\bin\clang++.exe+0x195d215)

22 0x00007ff78a4f9f2c (E:\GitHub\emsdk\upstream\bin\clang++.exe+0x1919f2c)

23 0x00007ff78a5b1c0d (E:\GitHub\emsdk\upstream\bin\clang++.exe+0x19d1c0d)

24 0x00007ff788be75fa (E:\GitHub\emsdk\upstream\bin\clang++.exe+0x75fa)

25 0x00007ff788be4914 (E:\GitHub\emsdk\upstream\bin\clang++.exe+0x4914)

26 0x00007ff78a48e396 (E:\GitHub\emsdk\upstream\bin\clang++.exe+0x18ae396)

27 0x00007ff789c71543 (E:\GitHub\emsdk\upstream\bin\clang++.exe+0x1091543)

28 0x00007ff78a48dbd3 (E:\GitHub\emsdk\upstream\bin\clang++.exe+0x18adbd3)

29 0x00007ff78a38f8a5 (E:\GitHub\emsdk\upstream\bin\clang++.exe+0x17af8a5)

30 0x00007ff78a38fc4b (E:\GitHub\emsdk\upstream\bin\clang++.exe+0x17afc4b)

31 0x00007ff78a37c2a7 (E:\GitHub\emsdk\upstream\bin\clang++.exe+0x179c2a7)

32 0x00007ff788be42cf (E:\GitHub\emsdk\upstream\bin\clang++.exe+0x42cf)

33 0x00007ff78c6f9650 (E:\GitHub\emsdk\upstream\bin\clang++.exe+0x3b19650)

34 0x00007ffe6ff96fd4 (C:\WINDOWS\System32\KERNEL32.DLL+0x16fd4)

35 0x00007ffe7101cec1 (C:\WINDOWS\SYSTEM32\ntdll.dll+0x4cec1)

clang++: error: clang frontend command failed due to signal (use -v to see invocation)

Commands to produce the error are (assuming input file in e:\b.ll)

emcc e:\b.bc -c -o e:\b.o

E:/GitHub/emsdk/upstream/bin\clang++.exe -target wasm32-unknown-emscripten -DEMSCRIPTEN_major=1 -DEMSCRIPTEN_minor=39 -DEMSCRIPTEN_tiny__=19 -D_LIBCPP_ABI_VERSION=2 -Dunix -Dunix -Dunix -Werror=implicit-function-declaration -Xclang -nostdsysteminc -Xclang -isystemE:\GitHub\emsdk\upstream\emscripten\system\include\libcxx -Xclang -isystemE:\GitHub\emsdk\upstream\emscripten\system\lib\libcxxabi\include -Xclang -isystemE:\GitHub\emsdk\upstream\emscripten\system\lib\libunwind\include -Xclang -isystemE:\GitHub\emsdk\upstream\emscripten\system\include\compat -Xclang -isystemE:\GitHub\emsdk\upstream\emscripten\system\include -Xclang -isystemE:\GitHub\emsdk\upstream\emscripten\system\include\libc -Xclang -isystemE:\GitHub\emsdk\upstream\emscripten\system\lib\libc\musl\arch\emscripten -Xclang -isystemE:\GitHub\emsdk\upstream\emscripten\system\local\include -Xclang -isystemE:\GitHub\emsdk\upstream\emscripten\system\include\SSE -Xclang -isystemE:\GitHub\emsdk\upstream\emscripten\cache\wasm\include -DEMSCRIPTEN -fignore-exceptions -c e:\b.bc -Xclang -isystemE:\GitHub\emsdk\upstream\emscripten\system\include\SDL -c -o e:\b.o -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr

yowl commented 4 years ago

Thanks, confirmed that the original bitcode file compiles with this fix.

yowl commented 4 years ago

assigned to @tlively

llvm / llvm-project