https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124461
Bug ID: 124461
Summary: Error: no such instruction: `movrsl eax,DWORD PTR
[rax]' with -mmovrs -masm=intel
Product: gcc
Version: 16.0
Status: UNCONFIRMED
Keywords: assemble-failure
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
Created attachment 63904
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=63904&action=edit
reduced testcase
Compiler output:
$ x86_64-pc-linux-gnu-gcc -mmovrs testcase.c -masm=intel
/tmp/cciw9y4R.s: Assembler messages:
/tmp/cciw9y4R.s:16: Error: no such instruction: `movrsl eax,DWORD PTR [rax]'
The 'l' suffix must not be present with intel syntax:
@@ -13,7 +13,7 @@
.cfi_def_cfa_register 6
mov QWORD PTR [rbp-8], 0
mov rax, QWORD PTR [rbp-8]
- movrsl eax, DWORD PTR [rax]
+ movrs eax, DWORD PTR [rax]
nop
pop rbp
.cfi_def_cfa 7, 8
$ x86_64-pc-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest/bin/x86_64-pc-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-20260312102416-r16-8033-ge397f2547a66d0-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/16.0.1/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra
--disable-bootstrap --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu
--target=x86_64-pc-linux-gnu --with-ld=/usr/bin/x86_64-pc-linux-gnu-ld
--with-as=/usr/bin/x86_64-pc-linux-gnu-as --enable-libsanitizer
--disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-20260312102416-r16-8033-ge397f2547a66d0-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 16.0.1 20260312 (experimental) (GCC)
