[Question][Hw3,4] PHI node entries do not match predecessors!

[ktkim]

I tested the source code in HW3. I got this error. (I commited the code in the HW3)
Could you tell me the what the wrong is.

PHI node entries do not match predecessors! |
%c.0 = phi i32 [ %div, %if.then ], [ %div1, %if.else ], !dbg !23 |
label %if.then |
label %0 |
Instruction does not dominate all uses! |
%div = sdiv i32 30, %a, !dbg !18 |
%c.0 = phi i32 [ %div, %if.then ], [ %div1, %if.else ], !dbg !23 |
Instruction does not dominate all uses! |
%div1 = sdiv i32 40, %a, !dbg !21 |
%c.0 = phi i32 [ %div, %if.then ], [ %div1, %if.else ], !dbg !23 |
fatal error: error in backend: Broken module found, compilation aborted! |
clang: error: clang frontend command failed with exit code 70 (use -v to see invocation) |
clang version 10.0.0-4ubuntu1 |
Target: x86_64-pc-linux-gnu |
Thread model: posix |
InstalledDir: /usr/bin |
clang: note: diagnostic msg: PLEASE submit a bug report to https://bugs.llvm.org/ and include the cras|
h backtrace, preprocessed source, and associated run script. |
clang: note: diagnostic msg: |
******************** |
|
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT: |
Preprocessed source(s) and associated run script(s) are located at: |
clang: note: diagnostic msg: /tmp/runtime-e65107.c |
clang: note: diagnostic msg: /tmp/runtime-e65107.sh |
clang: note: diagnostic msg: |
|
******************** |
make: *** [Makefile:17: example3.ll] Error 70

[RiceBiscuits]

I think you used build_* functions of LLVM in an inappropriate way. Please see your example3.instrumented.ll file and check the IR is created what you intended.

[ktkim]

Thank you. Closed