melver created this revision. melver added a reviewer: vitalybuka. Herald added subscribers: cfe-commits, danielkiss, kristof.beyls. Herald added a project: clang. melver added a comment.
Example of failing test: http://lab.llvm.org:8011/builders/clang-cmake-armv7-full/builds/10689 So this definitely can't be -target, because we set that. So it seems that some version of LLVM compiled for armv7 is somehow broken? Vitaly, I wasn't able to test this since I don't have access to any such platform right now. If the "XFAIL" looks sane, and there isn't a better option, the build bots should eventually be able to tell us if this is reasonable. Thanks! Versions of LLVM built on {arm,thumb}v7 appear to have differently configured pass managers, which causes restrictions on which sanitizers we may use. As such, expect failure of the recently added "sanitize-coverage.c" test on these architectures until we can investigate armv7's restrictions. Repository: rG LLVM Github Monorepo https://reviews.llvm.org/D80668 Files: clang/test/CodeGen/sanitize-coverage.c Index: clang/test/CodeGen/sanitize-coverage.c =================================================================== --- clang/test/CodeGen/sanitize-coverage.c +++ clang/test/CodeGen/sanitize-coverage.c @@ -4,6 +4,8 @@ // RUN: %clang %s -target x86_64-unknown-linux-gnu -emit-llvm -S -fsanitize=memory -fsanitize-coverage=trace-pc,trace-cmp -o - | FileCheck %s --check-prefixes=CHECK,MSAN // RUN: %clang %s -target x86_64-unknown-linux-gnu -emit-llvm -S -fsanitize=thread -fsanitize-coverage=trace-pc,trace-cmp -o - | FileCheck %s --check-prefixes=CHECK,TSAN // RUN: %clang %s -target x86_64-unknown-linux-gnu -emit-llvm -S -fsanitize=undefined -fsanitize-coverage=trace-pc,trace-cmp -o - | FileCheck %s --check-prefixes=CHECK,UBSAN +// +// XFAIL: armv7, thumbv7 int x[10];
Index: clang/test/CodeGen/sanitize-coverage.c =================================================================== --- clang/test/CodeGen/sanitize-coverage.c +++ clang/test/CodeGen/sanitize-coverage.c @@ -4,6 +4,8 @@ // RUN: %clang %s -target x86_64-unknown-linux-gnu -emit-llvm -S -fsanitize=memory -fsanitize-coverage=trace-pc,trace-cmp -o - | FileCheck %s --check-prefixes=CHECK,MSAN // RUN: %clang %s -target x86_64-unknown-linux-gnu -emit-llvm -S -fsanitize=thread -fsanitize-coverage=trace-pc,trace-cmp -o - | FileCheck %s --check-prefixes=CHECK,TSAN // RUN: %clang %s -target x86_64-unknown-linux-gnu -emit-llvm -S -fsanitize=undefined -fsanitize-coverage=trace-pc,trace-cmp -o - | FileCheck %s --check-prefixes=CHECK,UBSAN +// +// XFAIL: armv7, thumbv7 int x[10];
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