fmayer wrote:
Breakage looks related: https://lab.llvm.org/buildbot/#/builders/72/builds/265
```
FAIL: UBSan-MemorySanitizer-powerpc64le :: TestCases/Integer/bit-int.c (4716 of
4745)
******************** TEST 'UBSan-MemorySanitizer-powerpc64le ::
TestCases/Integer/bit-int.c' FAILED ********************
Exit Code: 1
Command Output (stderr):
--
RUN: at line 1:
/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_gcc/./bin/clang
-fsanitize=memory -m64 -fno-function-sections -Wno-constant-conversion
-Wno-array-bounds -Wno-division-by-zero -Wno-shift-negative-value
-Wno-shift-count-negative -Wno-int-to-pointer-cast -O0
-fsanitize=alignment,array-bounds,bool,float-cast-overflow,implicit-integer-sign-change,implicit-signed-integer-truncation,implicit-unsigned-integer-truncation,integer-divide-by-zero,nonnull-attribute,null,nullability-arg,nullability-assign,nullability-return,pointer-overflow,returns-nonnull-attribute,shift-base,shift-exponent,signed-integer-overflow,unreachable,unsigned-integer-overflow,unsigned-shift-base,vla-bound
/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/ubsan/TestCases/Integer/bit-int.c
-o
/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_g
cc/runtimes/runtimes-bins/compiler-rt/test/ubsan/MemorySanitizer-powerpc64le/TestCases/Integer/Output/bit-int.c.tmp1
&&
/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_gcc/runtimes/runtimes-bins/compiler-rt/test/ubsan/MemorySanitizer-powerpc64le/TestCases/Integer/Output/bit-int.c.tmp1
2>&1 | FileCheck
/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/ubsan/TestCases/Integer/bit-int.c
--check-prefix=RUNTIME
+
/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_gcc/./bin/clang
-fsanitize=memory -m64 -fno-function-sections -Wno-constant-conversion
-Wno-array-bounds -Wno-division-by-zero -Wno-shift-negative-value
-Wno-shift-count-negative -Wno-int-to-pointer-cast -O0
-fsanitize=alignment,array-bounds,bool,float-cast-overflow,implicit-integer-sign-change,implicit-signed-integer-truncation,implicit-unsigned-integer-truncation,integer-divide-by-zero,nonnull-attribute,null,nullability-arg,nullability-assign,nullability-return,pointer-overflow,returns-nonnull-attribute,shift-base,shift-exponent,signed-integer-overflow,unreachable,unsigned-integer-overflow,unsigned-shift-base,vla-bound
/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/ubsan/TestCases/Integer/bit-int.c
-o
/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_gcc/runtimes/runti
mes-bins/compiler-rt/test/ubsan/MemorySanitizer-powerpc64le/TestCases/Integer/Output/bit-int.c.tmp1
+
/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_gcc/runtimes/runtimes-bins/compiler-rt/test/ubsan/MemorySanitizer-powerpc64le/TestCases/Integer/Output/bit-int.c.tmp1
+ FileCheck
/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/ubsan/TestCases/Integer/bit-int.c
--check-prefix=RUNTIME
/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/ubsan/TestCases/Integer/bit-int.c:93:14:
error: RUNTIME: expected string not found in input
// RUNTIME: {{.*}}bit-int.c:[[@LINE-1]]:24: runtime error: left shift of
negative value -1
^
<stdin>:25:206: note: scanning from here
/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/ubsan/TestCases/Integer/bit-int.c:86:21:
runtime error: shift exponent -1 is negative
^
<stdin>:25:206: note: with "@LINE-1" equal to "92"
/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/ubsan/TestCases/Integer/bit-int.c:86:21:
runtime error: shift exponent -1 is negative
^
<stdin>:33:252: note: possible intended match here
SUMMARY: MemorySanitizer: use-of-uninitialized-value
(/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_gcc/runtimes/runtimes-bins/compiler-rt/test/ubsan/MemorySanitizer-powerpc64le/TestCases/Integer/Output/bit-int.c.tmp1+0xe6d64)
in shift_exponent
^
Input file: <stdin>
Check file:
/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/ubsan/TestCases/Integer/bit-int.c
-dump-input=help explains the following input dump.
Input was:
<<<<<<
.
.
.
20: SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior
/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/ubsan/TestCases/Integer/bit-int.c:65:18
21:
/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/ubsan/TestCases/Integer/bit-int.c:72:19:
runtime error: implicit conversion from type 'unsigned _BitInt(37)' of value
137438953471 (64-bit, unsigned) to type '_BitInt(37)' changed the value to -1
(64-bit, signed)
22: SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior
/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/ubsan/TestCases/Integer/bit-int.c:72:19
23:
/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/ubsan/TestCases/Integer/bit-int.c:79:10:
runtime error: implicit conversion from type '_BitInt(73)' of value
0x00000000000000008000000000000000 (128-bit, signed) to type '_BitInt(13)'
changed the value to 0 (16-bit, signed)
24: SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior
/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/ubsan/TestCases/Integer/bit-int.c:79:10
25:
/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/ubsan/TestCases/Integer/bit-int.c:86:21:
runtime error: shift exponent -1 is negative
Step 9 (test compiler-rt gcc) failure: test compiler-rt gcc (failure)
```
https://github.com/llvm/llvm-project/pull/93612
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