llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT--> @llvm/pr-subscribers-clang Author: None (joyhou-hw) <details> <summary>Changes</summary> attribute ((aligned)) should be 4 for -miamcu. relate: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66818 --- Full diff: https://github.com/llvm/llvm-project/pull/80401.diff 2 Files Affected: - (modified) clang/lib/Basic/Targets/X86.h (+1) - (modified) clang/test/Sema/attr-aligned.c (+10) ``````````diff diff --git a/clang/lib/Basic/Targets/X86.h b/clang/lib/Basic/Targets/X86.h index 1845f5a747af4..0adb1f3eacecb 100644 --- a/clang/lib/Basic/Targets/X86.h +++ b/clang/lib/Basic/Targets/X86.h @@ -634,6 +634,7 @@ class LLVM_LIBRARY_VISIBILITY CygwinX86_32TargetInfo : public X86_32TargetInfo { : X86_32TargetInfo(Triple, Opts) { this->WCharType = TargetInfo::UnsignedShort; DoubleAlign = LongLongAlign = 64; + DefaultAlignForAttributeAligned = 32; resetDataLayout("e-m:x-p:32:32-p270:32:32-p271:32:32-p272:64:64-i64:64-" "i128:128-f80:32-n8:16:32-a:0:32-S32", "_"); diff --git a/clang/test/Sema/attr-aligned.c b/clang/test/Sema/attr-aligned.c index 130840d46650d..b285ce3d0ed78 100644 --- a/clang/test/Sema/attr-aligned.c +++ b/clang/test/Sema/attr-aligned.c @@ -1,4 +1,12 @@ // RUN: %clang_cc1 -triple x86_64-apple-darwin9 -fsyntax-only -verify %s +// RUN: %clang_cc1 -triple i586-intel-elfiamcu -fsyntax-only -verify %s + +#ifdef __iamcu +// expected-no-diagnostics +struct dummy { int x __attribute__((aligned)); }; +int m0[__alignof__(struct dummy) == 4 ? 1 : -1]; + +#else int x __attribute__((aligned(3))); // expected-error {{requested alignment is not a power of 2}} int y __attribute__((aligned(1ull << 33))); // expected-error {{requested alignment must be 4294967296 bytes or smaller}} @@ -60,3 +68,5 @@ array_with_overaligned_struct F2; char f2[__alignof__(F2) == 16 ? 1 : -1] = { 0 }; array_with_align_attr F3; char f3[__alignof__(F3) == 16 ? 1 : -1] = { 0 }; + +#endif `````````` </details> https://github.com/llvm/llvm-project/pull/80401 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
