X86 backend lacks 'q' inlineasm constraint #1200
Labels
backend:X86
bugzilla
Issues migrated from bugzilla
compile-fail
Use [accepts-invalid] and [rejects-valid] instead
Extended Description
cat |llvm-as|llc
target endian = little
target pointersize = 32
target triple = "i686-pc-linux-gnu"
implementation ; Functions:
void %_ZN5() {
cond_true9: ; preds = %entry
%tmp3.i.i = call int asm sideeffect "lock; cmpxchg $1,$2",
"={ax},q,m,0,
{dirflag},{fpsr},{flags},{memory}"( int 0, int* null, int 0 ); [#uses=0]
ret void
}
^D
llc: SelectionDAGISel.cpp:2230: void
llvm::SelectionDAGLowering::visitInlineAsm(llvm::CallInst&): Assertion `CTy ==
TargetLowering::C_RegisterClass && "Unknown op type!"' failed.
llc((anonymous namespace)::PrintStackTrace()+0x1f)[0x878a07f]
/lib/tls/i686/cmov/libc.so.6(abort+0x1dc)[0xb7dc27d8]
/lib/tls/i686/cmov/libc.so.6(__assert_fail+0x109)[0xb7dbad5d]
llc(llvm::SelectionDAGLowering::visitInlineAsm(llvm::CallInst&)+0x57e)[0x8559e2e]
Aborted
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