https://bugs.llvm.org/show_bug.cgi?id=42200
Bug ID: 42200
Summary: -emit-llvm accepts wrong code
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: C++
Assignee: unassignedclangb...@nondot.org
Reporter: zhong...@pku.org.cn
CC: blitzrak...@gmail.com, dgre...@apple.com,
erik.pilking...@gmail.com, llvm-bugs@lists.llvm.org,
richard-l...@metafoo.co.uk
My clang is 9.0.0, and my code is:
int pixels;
void test() {
asm volatile("%0 %1" : "+r" (pixels) : : "%eax");
}
With other parameters, clang rejects the code:
source>:3:15: error: unexpected token at start of statement
asm volatile("%0 %1" : "+r" (pixels) : : "%eax");
^
<inline asm>:1:2: note: instantiated into assembly here
%ecx %ecx
^
1 error generated.
Compiler returned: 1
However, with -emit-llvm, it accepts the code. It seems to be incorrect?
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