llvm-project/llvm/test/CodeGen/X86/bswap-inline-asm.ll

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; RUN: llvm-as < %s | llc -march=x86-64 > %t
; RUN: not grep APP %t
; RUN: grep bswapq %t | count 2
define i64 @foo(i64 %x) nounwind {
%asmtmp = tail call i64 asm "bswap $0", "=r,0,~{dirflag},~{fpsr},~{flags}"(i64 %x) nounwind
ret i64 %asmtmp
}
define i64 @bar(i64 %x) nounwind {
%asmtmp = tail call i64 asm "bswapq ${0:q}", "=r,0,~{dirflag},~{fpsr},~{flags}"(i64 %x) nounwind
ret i64 %asmtmp
}