https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112434
Bug ID: 112434
Summary: unexpected error when compiling for riscv64: invalid
'asm': invalid use of '%c'
Product: gcc
Version: 13.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: rsworktech at outlook dot com
Target Milestone: ---
Created attachment 56528
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=56528&action=edit
Reduced source file
When compiling the provided source file, an unexpected error happens:
testcase.i: In function 'produce_asm_define':
testcase.i:15:3: error: invalid 'asm': invalid use of '%c'
15 | __asm__("# FUNCTION_OFFSET_INSTANCE = %c0"
| ^~~~~~~
This could be reproduced on riscv64 or x86_64(using a cross compiler)
Commandline used for reproduction:
On x86_64: riscv64-linux-gnu-gcc -S testcase.i
On riscv64: gcc -S testcase.i
It is expected that this file could be compiled without error because:
1. On x86_64, the following commandline works fine: gcc -S testcase.i
2. On x86_64, cross compilation to aarch64 works fine: aarch64-linux-gnu-gcc -S
testcase.i
3. On riscv64, the same source file could be compiled by clang: clang -S
testcase.i
This is also reproducible with gcc 12.3.0.
The reduced testcase.i is attached.
