https://llvm.org/bugs/show_bug.cgi?id=24214
Bug ID: 24214
Summary: Clang crashes with the regparam function attribute
when targeting AArch64
Product: clang
Version: trunk
Hardware: PC
OS: FreeBSD
Status: NEW
Severity: normal
Priority: P
Component: Frontend
Assignee: unassignedclangb...@nondot.org
Reporter: and...@fubar.geek.nz
CC: dimi...@andric.com, ema...@freebsd.org,
llvmbugs@cs.uiuc.edu, rdiva...@freebsd.org,
renato.go...@linaro.org
Classification: Unclassified
Created attachment 14626
--> https://llvm.org/bugs/attachment.cgi?id=14626&action=edit
Example showing the assert
The AArch64TargetInfo class sets RegParmMax to 8, however in
include/clang/Basic/TargetInfo.h there is an assert that RegParmMax < 7.
The attached file shows the issue when built with:
clang -cc1 -triple aarch64-unknown-freebsd11.0 regparam_test.c
Building this with clang 3.6 from FreeBSD and clang 3.8 I get the following:
Assertion failed: (RegParmMax < 7 && "RegParmMax value is larger than AST can
handle"), function getRegParmMax, file
/home/andrew/freebsd/repo/llvm/tools/clang/include/clang/Basic/TargetInfo.h,
line 824.
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