nikic wrote:
The clang test also fails on s390x (big endian):
```
RUN: at line 2:
/builddir/build/BUILD/llvm-project-ec29660c44e5e73d3b78f4884f9178036563fb25/llvm/s390x-redhat-linux-gnu/bin/clang
-cc1 -internal-isystem
/builddir/build/BUILD/llvm-project-ec29660c44e5e73d3b78f4884f9178036563fb25/llvm/s390x-redhat-linux-gnu/bin/../lib/clang/20/include
-nostdsysteminc -Wno-constant-conversion -Wno-array-bounds
-Wno-division-by-zero -Wno-shift-negative-value -Wno-shift-count-negative
-Wno-int-to-pointer-cast
-fsanitize=array-bounds,enum,float-cast-overflow,integer-divide-by-zero,implicit-unsigned-integer-truncation,implicit-signed-integer-truncation,implicit-integer-sign-change,unsigned-integer-overflow,signed-integer-overflow,shift-base,shift-exponent
-O0 -emit-llvm -o -
/builddir/build/BUILD/llvm-project-ec29660c44e5e73d3b78f4884f9178036563fb25/clang/test/CodeGen/bit-int-ubsan.c
|
/builddir/build/BUILD/llvm-project-ec29660c44e5e73d3b78f4884f9178036563fb25/llvm/s390x-redhat-linux-gnu/bin/FileCheck
/builddir/build/BUILD/llvm-project-ec29660c44e5e73d3b78f4884f9178036563fb25/clang/test/CodeGen/bit-int-ubsan.c
+
/builddir/build/BUILD/llvm-project-ec29660c44e5e73d3b78f4884f9178036563fb25/llvm/s390x-redhat-linux-gnu/bin/clang
-cc1 -internal-isystem
/builddir/build/BUILD/llvm-project-ec29660c44e5e73d3b78f4884f9178036563fb25/llvm/s390x-redhat-linux-gnu/bin/../lib/clang/20/include
-nostdsysteminc -Wno-constant-conversion -Wno-array-bounds
-Wno-division-by-zero -Wno-shift-negative-value -Wno-shift-count-negative
-Wno-int-to-pointer-cast
-fsanitize=array-bounds,enum,float-cast-overflow,integer-divide-by-zero,implicit-unsigned-integer-truncation,implicit-signed-integer-truncation,implicit-integer-sign-change,unsigned-integer-overflow,signed-integer-overflow,shift-base,shift-exponent
-O0 -emit-llvm -o -
/builddir/build/BUILD/llvm-project-ec29660c44e5e73d3b78f4884f9178036563fb25/clang/test/CodeGen/bit-int-ubsan.c
+
/builddir/build/BUILD/llvm-project-ec29660c44e5e73d3b78f4884f9178036563fb25/llvm/s390x-redhat-linux-gnu/bin/FileCheck
/builddir/build/BUILD/llvm-project-ec29660c44e5e73d3b78f4884f9178036563fb25/clang/test/CodeGen/bit-int-ubsan.c
/builddir/build/BUILD/llvm-project-ec29660c44e5e73d3b78f4884f9178036563fb25/clang/test/CodeGen/bit-int-ubsan.c:11:12:
error: CHECK: expected string not found in input
// CHECK: constant { i16, i16, [20 x i8] } { i16 2, i16 13, [20 x i8]
c"'_BitInt(37)'\00%\00\00\00\00\00" }
^
<stdin>:7:100: note: scanning from here
@0 = private unnamed_addr constant { i16, i16, [8 x i8] } { i16 1, i16 32, [8 x
i8] c"'float'\00" }
^
<stdin>:8:27: note: possible intended match here
@1 = private unnamed_addr constant { i16, i16, [20 x i8] } { i16 2, i16 13, [20
x i8] c"'_BitInt(37)'\00\00\00\00%\00\00" }
^
Input file: <stdin>
Check file:
/builddir/build/BUILD/llvm-project-ec29660c44e5e73d3b78f4884f9178036563fb25/clang/test/CodeGen/bit-int-ubsan.c
-dump-input=help explains the following input dump.
Input was:
<<<<<<
1: ; ModuleID =
'/builddir/build/BUILD/llvm-project-ec29660c44e5e73d3b78f4884f9178036563fb25/clang/test/CodeGen/bit-int-ubsan.c'
2: source_filename =
"/builddir/build/BUILD/llvm-project-ec29660c44e5e73d3b78f4884f9178036563fb25/clang/test/CodeGen/bit-int-ubsan.c"
3: target datalayout =
"E-m:e-i1:8:16-i8:8:16-i64:64-f128:64-v128:64-a:8:16-n32:64"
4: target triple = "s390x-redhat-linux-gnu"
5:
6: @.src = private unnamed_addr constant [111 x i8]
c"/builddir/build/BUILD/llvm-project-ec29660c44e5e73d3b78f4884f9178036563fb25/clang/test/CodeGen/bit-int-ubsan.c\00",
align 2
7: @0 = private unnamed_addr constant { i16, i16, [8 x i8] } { i16
1, i16 32, [8 x i8] c"'float'\00" }
check:11'0
X error: no match found
8: @1 = private unnamed_addr constant { i16, i16, [20 x i8] } { i16
2, i16 13, [20 x i8] c"'_BitInt(37)'\00\00\00\00%\00\00" }
check:11'0
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
check:11'1 ?
possible intended
match
9: @2 = private unnamed_addr global { { ptr, i32, i32 }, ptr, ptr }
{ { ptr, i32, i32 } { ptr @.src, i32 10, i32 19 }, ptr @0, ptr @1 }
check:11'0
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
10: @3 = private unnamed_addr constant { i16, i16, [32 x i8] } { i16
0, i16 10, [32 x i8] c"'uint32_t' (aka 'unsigned int')\00" }
check:11'0
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
11: @4 = private unnamed_addr global { { ptr, i32, i32 }, ptr, ptr,
i8, i32 } { { ptr, i32, i32 } { ptr @.src, i32 12, i32 10 }, ptr @1, ptr @3, i8
2, i32 0 }
check:11'0
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
12: @5 = private unnamed_addr constant { i16, i16, [6 x i8] } { i16
0, i16 11, [6 x i8] c"'int'\00" }
check:11'0
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
13: @6 = private unnamed_addr global { { ptr, i32, i32 }, ptr } { {
ptr, i32, i32 } { ptr @.src, i32 16, i32 21 }, ptr @5 }
check:11'0
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.
.
.
>>>>>>
```
Please pass an explicit `-triple` to `%clang_cc1` if the test is not supposed
to be big endian compatible.
https://github.com/llvm/llvm-project/pull/96240
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