mal-optimized instruction invocation

stream.md

pc	instruction	%rax	%rcx	%rdx	%rdi	%r12	%r14	%r15	rflags	cs
	0xffffffff80000000	0xffffffffffffffff	0xffffffffffffffff	0x0000000000000000	0x0000000000000017	0xffffffffffffffff	0x8000000000000000		0x000000000000002b
0x1066ccb36 <+12534>	movq %r15, %rax	0x8000000000000000
0x1066ccb39 <+12537>	addq $0x80, %rax	0x8000000000000080							0x0000000000000282
0x1066ccb3f <+12543>	movq %r14, %rcx		0xffffffffffffffff
0x1066ccb42 <+12546>	adcq $0x0, %rcx		0xffffffffffffffff						0x0000000000000286
0x1066ccb46 <+12550>	cmpq $0x100, %rax								0x0000000000000a02
0x1066ccb4c <+12556>	sbbq $0x0, %rcx		0xffffffffffffffff						0x0000000000000286
0x1066ccb50 <+12560>	jae 0x1066ccbbf								0x0000000000000286
...	...	...	...	...	...	...	...	...	...	...
0x1066ccbbf <+12671>	movq %r15, %rcx		0x8000000000000000
0x1066ccbc2 <+12674>	addq $0x8000, %rcx		0x8000000000008000
0x1066ccbc9 <+12681>	movq %r14, %rdx			0xffffffffffffffff
0x1066ccbcc <+12684>	adcq $0x0, %rdx			0xffffffffffffffff
0x1066ccbd0 <+12688>	movb $0x1, %al	0x8000000000000001
0x1066ccbd2 <+12690>	cmpq $0x10000, %rcx								0x0000000000000a06
0x1066ccbd9 <+12697>	sbbq $0x0, %rdx			0xffffffffffffffff					0x0000000000000286
0x1066ccbdd <+12701>	jb 0x1066ccbfd
0x1066ccbdf <+12703>	movl $0x80000000, %eax	0x0000000080000000
0x1066ccbe4 <+12708>	addq %rax, %r15							0x8000000080000000
0x1066ccbe7 <+12711>	adcq $0x0, %r14						0xffffffffffffffff
0x1066ccbeb <+12715>	shrdq $0x20, %r14, %r15							0xffffffff80000000	0x0000000000000287
0x1066ccbf0 <+12720>	shrq $0x20, %r14						0x00000000ffffffff		0x0000000000000a07
0x1066ccbf4 <+12724>	orq %r15, %r14						0xffffffffffffffff		0x0000000000000286
0x1066ccbf7 <+12727>	movb $0x2, %al	0x0000000080000002
0x1066ccbf9 <+12729>	je 0x1066ccbfd		0x0000000080000002
0x1066ccbfb <+12731>	movb $0x4, %al	0x0000000080000004