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[PATCH 05/10] x86: add tests to cover defaulting of operand sizes for ambiguous insns


Prior to changing the logic in the assembler install tests to make sure
the present defaulting of operand sizes won't get broken. There are a
few potential anomalies pointed out by this:
- arithmetic insns (add, sub, etc) allow defaulting when their immediate
  fits in (signed) 8 bits, but they fail to assemble with larger values,
- mov, other than arithmetic insns, doesn't allow any defaulting,
- movsx/movzx default to byte sources (in AT&T mode), and their special
  casing needs to be adjusted first
- bt and friends allow defaulting, while shl and friends don't,
- ambiguous AVX and AVX512 insns don't allow defaulting.
This should ultimately all become consistent (perhaps with the exception
some of the SIMD insns); respective tests will be added to the test
cases here as the issues get addressed.

gas/
2019-08-XX  Jan Beulich  <jbeulich@suse.com>

	* testsuite/gas/i386/noreg16.d, testsuite/gas/i386/noreg16.s,
	testsuite/gas/i386/noreg32.d, testsuite/gas/i386/noreg32.s,
	testsuite/gas/i386/noreg64.d, testsuite/gas/i386/noreg64.s: New.
	* testsuite/gas/i386/i386.exp: Run new tests.

--- a/gas/testsuite/gas/i386/i386.exp
+++ b/gas/testsuite/gas/i386/i386.exp
@@ -128,6 +128,8 @@ if [expr ([istarget "i*86-*-*"] ||  [ist
     run_dump_test "nops-5-i686"
     run_dump_test "nops-6"
     run_dump_test "nops-7"
+    run_dump_test "noreg16"
+    run_dump_test "noreg32"
     run_dump_test "addr16"
     run_dump_test "addr32"
     run_list_test "oversized16" "-al"
@@ -696,6 +698,7 @@ if [expr ([istarget "i*86-*-*"] || [ista
     run_dump_test "x86-64-nops-5"
     run_dump_test "x86-64-nops-5-k8"
     run_dump_test "x86-64-nops-7"
+    run_dump_test "noreg64"
     run_list_test "cvtsi2sX"
     run_dump_test "x86-64-sse4_1"
     run_dump_test "x86-64-sse4_1-intel"
--- /dev/null
+++ b/gas/testsuite/gas/i386/noreg16.d
@@ -0,0 +1,66 @@
+#objdump: -dwMi8086
+#name: 16-bit insns not sizeable through register operands
+
+.*: +file format .*
+
+Disassembly of section .text:
+
+0+ <noreg>:
+ *[a-f0-9]+:	83 17 01             	adcw   \$0x1,\(%bx\)
+ *[a-f0-9]+:	83 07 01             	addw   \$0x1,\(%bx\)
+ *[a-f0-9]+:	83 27 01             	andw   \$0x1,\(%bx\)
+ *[a-f0-9]+:	0f ba 27 01          	btw    \$0x1,\(%bx\)
+ *[a-f0-9]+:	0f ba 3f 01          	btcw   \$0x1,\(%bx\)
+ *[a-f0-9]+:	0f ba 37 01          	btrw   \$0x1,\(%bx\)
+ *[a-f0-9]+:	0f ba 2f 01          	btsw   \$0x1,\(%bx\)
+ *[a-f0-9]+:	ff 17                	call   \*\(%bx\)
+ *[a-f0-9]+:	83 3f 01             	cmpw   \$0x1,\(%bx\)
+ *[a-f0-9]+:	f2 0f 2a 07          	cvtsi2sdl \(%bx\),%xmm0
+ *[a-f0-9]+:	f3 0f 2a 07          	cvtsi2ssl \(%bx\),%xmm0
+ *[a-f0-9]+:	d8 07                	fadds  \(%bx\)
+ *[a-f0-9]+:	d8 17                	fcoms  \(%bx\)
+ *[a-f0-9]+:	d8 1f                	fcomps \(%bx\)
+ *[a-f0-9]+:	d8 37                	fdivs  \(%bx\)
+ *[a-f0-9]+:	d8 3f                	fdivrs \(%bx\)
+ *[a-f0-9]+:	de 07                	fiadds \(%bx\)
+ *[a-f0-9]+:	de 17                	ficoms \(%bx\)
+ *[a-f0-9]+:	de 1f                	ficomps \(%bx\)
+ *[a-f0-9]+:	de 37                	fidivs \(%bx\)
+ *[a-f0-9]+:	de 3f                	fidivrs \(%bx\)
+ *[a-f0-9]+:	df 07                	filds  \(%bx\)
+ *[a-f0-9]+:	de 0f                	fimuls \(%bx\)
+ *[a-f0-9]+:	df 17                	fists  \(%bx\)
+ *[a-f0-9]+:	df 1f                	fistps \(%bx\)
+ *[a-f0-9]+:	df 0f                	fisttps \(%bx\)
+ *[a-f0-9]+:	de 27                	fisubs \(%bx\)
+ *[a-f0-9]+:	de 2f                	fisubrs \(%bx\)
+ *[a-f0-9]+:	d9 07                	flds   \(%bx\)
+ *[a-f0-9]+:	d8 0f                	fmuls  \(%bx\)
+ *[a-f0-9]+:	d9 17                	fsts   \(%bx\)
+ *[a-f0-9]+:	d9 1f                	fstps  \(%bx\)
+ *[a-f0-9]+:	d8 27                	fsubs  \(%bx\)
+ *[a-f0-9]+:	d8 2f                	fsubrs \(%bx\)
+ *[a-f0-9]+:	ff 27                	jmp    \*\(%bx\)
+ *[a-f0-9]+:	0f 01 17             	lgdtw  \(%bx\)
+ *[a-f0-9]+:	0f 01 1f             	lidtw  \(%bx\)
+ *[a-f0-9]+:	0f 00 17             	lldt   \(%bx\)
+ *[a-f0-9]+:	0f 01 37             	lmsw   \(%bx\)
+ *[a-f0-9]+:	0f 00 1f             	ltr    \(%bx\)
+ *[a-f0-9]+:	8c 07                	mov    %es,\(%bx\)
+ *[a-f0-9]+:	8e 07                	mov    \(%bx\),%es
+ *[a-f0-9]+:	83 0f 01             	orw    \$0x1,\(%bx\)
+ *[a-f0-9]+:	8f 07                	popw   \(%bx\)
+ *[a-f0-9]+:	07                   	pop    %es
+ *[a-f0-9]+:	f3 0f ae 27          	ptwritel \(%bx\)
+ *[a-f0-9]+:	ff 37                	pushw  \(%bx\)
+ *[a-f0-9]+:	06                   	push   %es
+ *[a-f0-9]+:	83 1f 01             	sbbw   \$0x1,\(%bx\)
+ *[a-f0-9]+:	83 2f 01             	subw   \$0x1,\(%bx\)
+ *[a-f0-9]+:	c5 fb 2a 07          	vcvtsi2sdl \(%bx\),%xmm0,%xmm0
+ *[a-f0-9]+:	62 f1 7f 08 2a 07    	vcvtsi2sdl \(%bx\),%xmm0,%xmm0
+ *[a-f0-9]+:	c5 fa 2a 07          	vcvtsi2ssl \(%bx\),%xmm0,%xmm0
+ *[a-f0-9]+:	62 f1 7e 08 2a 07    	vcvtsi2ssl \(%bx\),%xmm0,%xmm0
+ *[a-f0-9]+:	62 f1 7f 08 7b 07    	vcvtusi2sdl \(%bx\),%xmm0,%xmm0
+ *[a-f0-9]+:	62 f1 7e 08 7b 07    	vcvtusi2ssl \(%bx\),%xmm0,%xmm0
+ *[a-f0-9]+:	83 37 01             	xorw   \$0x1,\(%bx\)
+#pass
--- /dev/null
+++ b/gas/testsuite/gas/i386/noreg16.s
@@ -0,0 +1,60 @@
+	.text
+	.code16
+noreg:
+	adc	$1, (%bx)
+	add	$1, (%bx)
+	and	$1, (%bx)
+	bt	$1, (%bx)
+	btc	$1, (%bx)
+	btr	$1, (%bx)
+	bts	$1, (%bx)
+	call	*(%bx)
+	cmp	$1, (%bx)
+	cvtsi2sd (%bx), %xmm0
+	cvtsi2ss (%bx), %xmm0
+	fadd	(%bx)
+	fcom	(%bx)
+	fcomp	(%bx)
+	fdiv	(%bx)
+	fdivr	(%bx)
+	fiadd	(%bx)
+	ficom	(%bx)
+	ficomp	(%bx)
+	fidiv	(%bx)
+	fidivr	(%bx)
+	fild	(%bx)
+	fimul	(%bx)
+	fist	(%bx)
+	fistp	(%bx)
+	fisttp	(%bx)
+	fisub	(%bx)
+	fisubr	(%bx)
+	fld	(%bx)
+	fmul	(%bx)
+	fst	(%bx)
+	fstp	(%bx)
+	fsub	(%bx)
+	fsubr	(%bx)
+	jmp	*(%bx)
+	lgdt	(%bx)
+	lidt	(%bx)
+	lldt	(%bx)
+	lmsw	(%bx)
+	ltr	(%bx)
+	mov	%es, (%bx)
+	mov	(%bx), %es
+	or	$1, (%bx)
+	pop	(%bx)
+	pop	%es
+	ptwrite	(%bx)
+	push	(%bx)
+	push	%es
+	sbb	$1, (%bx)
+	sub	$1, (%bx)
+	vcvtsi2sd (%bx), %xmm0, %xmm0
+	{evex} vcvtsi2sd (%bx), %xmm0, %xmm0
+	vcvtsi2ss (%bx), %xmm0, %xmm0
+	{evex} vcvtsi2ss (%bx), %xmm0, %xmm0
+	vcvtusi2sd (%bx), %xmm0, %xmm0
+	vcvtusi2ss (%bx), %xmm0, %xmm0
+	xor	$1, (%bx)
--- /dev/null
+++ b/gas/testsuite/gas/i386/noreg32.d
@@ -0,0 +1,66 @@
+#objdump: -dw
+#name: 32-bit insns not sizeable through register operands
+
+.*: +file format .*
+
+Disassembly of section .text:
+
+0+ <noreg>:
+ *[a-f0-9]+:	83 10 01             	adcl   \$0x1,\(%eax\)
+ *[a-f0-9]+:	83 00 01             	addl   \$0x1,\(%eax\)
+ *[a-f0-9]+:	83 20 01             	andl   \$0x1,\(%eax\)
+ *[a-f0-9]+:	0f ba 20 01          	btl    \$0x1,\(%eax\)
+ *[a-f0-9]+:	0f ba 38 01          	btcl   \$0x1,\(%eax\)
+ *[a-f0-9]+:	0f ba 30 01          	btrl   \$0x1,\(%eax\)
+ *[a-f0-9]+:	0f ba 28 01          	btsl   \$0x1,\(%eax\)
+ *[a-f0-9]+:	ff 10                	call   \*\(%eax\)
+ *[a-f0-9]+:	83 38 01             	cmpl   \$0x1,\(%eax\)
+ *[a-f0-9]+:	f2 0f 2a 00          	cvtsi2sdl \(%eax\),%xmm0
+ *[a-f0-9]+:	f3 0f 2a 00          	cvtsi2ssl \(%eax\),%xmm0
+ *[a-f0-9]+:	d8 00                	fadds  \(%eax\)
+ *[a-f0-9]+:	d8 10                	fcoms  \(%eax\)
+ *[a-f0-9]+:	d8 18                	fcomps \(%eax\)
+ *[a-f0-9]+:	d8 30                	fdivs  \(%eax\)
+ *[a-f0-9]+:	d8 38                	fdivrs \(%eax\)
+ *[a-f0-9]+:	de 00                	fiadds \(%eax\)
+ *[a-f0-9]+:	de 10                	ficoms \(%eax\)
+ *[a-f0-9]+:	de 18                	ficomps \(%eax\)
+ *[a-f0-9]+:	de 30                	fidivs \(%eax\)
+ *[a-f0-9]+:	de 38                	fidivrs \(%eax\)
+ *[a-f0-9]+:	df 00                	filds  \(%eax\)
+ *[a-f0-9]+:	de 08                	fimuls \(%eax\)
+ *[a-f0-9]+:	df 10                	fists  \(%eax\)
+ *[a-f0-9]+:	df 18                	fistps \(%eax\)
+ *[a-f0-9]+:	df 08                	fisttps \(%eax\)
+ *[a-f0-9]+:	de 20                	fisubs \(%eax\)
+ *[a-f0-9]+:	de 28                	fisubrs \(%eax\)
+ *[a-f0-9]+:	d9 00                	flds   \(%eax\)
+ *[a-f0-9]+:	d8 08                	fmuls  \(%eax\)
+ *[a-f0-9]+:	d9 10                	fsts   \(%eax\)
+ *[a-f0-9]+:	d9 18                	fstps  \(%eax\)
+ *[a-f0-9]+:	d8 20                	fsubs  \(%eax\)
+ *[a-f0-9]+:	d8 28                	fsubrs \(%eax\)
+ *[a-f0-9]+:	ff 20                	jmp    \*\(%eax\)
+ *[a-f0-9]+:	0f 01 10             	lgdtl  \(%eax\)
+ *[a-f0-9]+:	0f 01 18             	lidtl  \(%eax\)
+ *[a-f0-9]+:	0f 00 10             	lldt   \(%eax\)
+ *[a-f0-9]+:	0f 01 30             	lmsw   \(%eax\)
+ *[a-f0-9]+:	0f 00 18             	ltr    \(%eax\)
+ *[a-f0-9]+:	8c 00                	mov    %es,\(%eax\)
+ *[a-f0-9]+:	8e 00                	mov    \(%eax\),%es
+ *[a-f0-9]+:	83 08 01             	orl    \$0x1,\(%eax\)
+ *[a-f0-9]+:	8f 00                	popl   \(%eax\)
+ *[a-f0-9]+:	07                   	pop    %es
+ *[a-f0-9]+:	f3 0f ae 20          	ptwritel \(%eax\)
+ *[a-f0-9]+:	ff 30                	pushl  \(%eax\)
+ *[a-f0-9]+:	06                   	push   %es
+ *[a-f0-9]+:	83 18 01             	sbbl   \$0x1,\(%eax\)
+ *[a-f0-9]+:	83 28 01             	subl   \$0x1,\(%eax\)
+ *[a-f0-9]+:	c5 fb 2a 00          	vcvtsi2sdl \(%eax\),%xmm0,%xmm0
+ *[a-f0-9]+:	62 f1 7f 08 2a 00    	vcvtsi2sdl \(%eax\),%xmm0,%xmm0
+ *[a-f0-9]+:	c5 fa 2a 00          	vcvtsi2ssl \(%eax\),%xmm0,%xmm0
+ *[a-f0-9]+:	62 f1 7e 08 2a 00    	vcvtsi2ssl \(%eax\),%xmm0,%xmm0
+ *[a-f0-9]+:	62 f1 7f 08 7b 00    	vcvtusi2sdl \(%eax\),%xmm0,%xmm0
+ *[a-f0-9]+:	62 f1 7e 08 7b 00    	vcvtusi2ssl \(%eax\),%xmm0,%xmm0
+ *[a-f0-9]+:	83 30 01             	xorl   \$0x1,\(%eax\)
+#pass
--- /dev/null
+++ b/gas/testsuite/gas/i386/noreg32.s
@@ -0,0 +1,59 @@
+	.text
+noreg:
+	adc	$1, (%eax)
+	add	$1, (%eax)
+	and	$1, (%eax)
+	bt	$1, (%eax)
+	btc	$1, (%eax)
+	btr	$1, (%eax)
+	bts	$1, (%eax)
+	call	*(%eax)
+	cmp	$1, (%eax)
+	cvtsi2sd (%eax), %xmm0
+	cvtsi2ss (%eax), %xmm0
+	fadd	(%eax)
+	fcom	(%eax)
+	fcomp	(%eax)
+	fdiv	(%eax)
+	fdivr	(%eax)
+	fiadd	(%eax)
+	ficom	(%eax)
+	ficomp	(%eax)
+	fidiv	(%eax)
+	fidivr	(%eax)
+	fild	(%eax)
+	fimul	(%eax)
+	fist	(%eax)
+	fistp	(%eax)
+	fisttp	(%eax)
+	fisub	(%eax)
+	fisubr	(%eax)
+	fld	(%eax)
+	fmul	(%eax)
+	fst	(%eax)
+	fstp	(%eax)
+	fsub	(%eax)
+	fsubr	(%eax)
+	jmp	*(%eax)
+	lgdt	(%eax)
+	lidt	(%eax)
+	lldt	(%eax)
+	lmsw	(%eax)
+	ltr	(%eax)
+	mov	%es, (%eax)
+	mov	(%eax), %es
+	or	$1, (%eax)
+	pop	(%eax)
+	pop	%es
+	ptwrite	(%eax)
+	push	(%eax)
+	push	%es
+	sbb	$1, (%eax)
+	sub	$1, (%eax)
+	vcvtsi2sd (%eax), %xmm0, %xmm0
+	{evex} vcvtsi2sd (%eax), %xmm0, %xmm0
+	vcvtsi2ss (%eax), %xmm0, %xmm0
+	{evex} vcvtsi2ss (%eax), %xmm0, %xmm0
+	vcvtusi2sd (%eax), %xmm0, %xmm0
+	vcvtusi2ss (%eax), %xmm0, %xmm0
+	xor	$1, (%eax)
--- /dev/null
+++ b/gas/testsuite/gas/i386/noreg64.d
@@ -0,0 +1,66 @@
+#objdump: -dw
+#name: 64-bit insns not sizeable through register operands
+
+.*: +file format .*
+
+Disassembly of section .text:
+
+0+ <noreg>:
+ *[a-f0-9]+:	83 10 01             	adcl   \$0x1,\(%rax\)
+ *[a-f0-9]+:	83 00 01             	addl   \$0x1,\(%rax\)
+ *[a-f0-9]+:	83 20 01             	andl   \$0x1,\(%rax\)
+ *[a-f0-9]+:	0f ba 20 01          	btl    \$0x1,\(%rax\)
+ *[a-f0-9]+:	0f ba 38 01          	btcl   \$0x1,\(%rax\)
+ *[a-f0-9]+:	0f ba 30 01          	btrl   \$0x1,\(%rax\)
+ *[a-f0-9]+:	0f ba 28 01          	btsl   \$0x1,\(%rax\)
+ *[a-f0-9]+:	ff 10                	callq  \*\(%rax\)
+ *[a-f0-9]+:	83 38 01             	cmpl   \$0x1,\(%rax\)
+ *[a-f0-9]+:	f2 0f 2a 00          	cvtsi2sdl \(%rax\),%xmm0
+ *[a-f0-9]+:	f3 0f 2a 00          	cvtsi2ssl \(%rax\),%xmm0
+ *[a-f0-9]+:	d8 00                	fadds  \(%rax\)
+ *[a-f0-9]+:	d8 10                	fcoms  \(%rax\)
+ *[a-f0-9]+:	d8 18                	fcomps \(%rax\)
+ *[a-f0-9]+:	d8 30                	fdivs  \(%rax\)
+ *[a-f0-9]+:	d8 38                	fdivrs \(%rax\)
+ *[a-f0-9]+:	de 00                	fiadds \(%rax\)
+ *[a-f0-9]+:	de 10                	ficoms \(%rax\)
+ *[a-f0-9]+:	de 18                	ficomps \(%rax\)
+ *[a-f0-9]+:	de 30                	fidivs \(%rax\)
+ *[a-f0-9]+:	de 38                	fidivrs \(%rax\)
+ *[a-f0-9]+:	df 00                	filds  \(%rax\)
+ *[a-f0-9]+:	de 08                	fimuls \(%rax\)
+ *[a-f0-9]+:	df 10                	fists  \(%rax\)
+ *[a-f0-9]+:	df 18                	fistps \(%rax\)
+ *[a-f0-9]+:	df 08                	fisttps \(%rax\)
+ *[a-f0-9]+:	de 20                	fisubs \(%rax\)
+ *[a-f0-9]+:	de 28                	fisubrs \(%rax\)
+ *[a-f0-9]+:	d9 00                	flds   \(%rax\)
+ *[a-f0-9]+:	d8 08                	fmuls  \(%rax\)
+ *[a-f0-9]+:	d9 10                	fsts   \(%rax\)
+ *[a-f0-9]+:	d9 18                	fstps  \(%rax\)
+ *[a-f0-9]+:	d8 20                	fsubs  \(%rax\)
+ *[a-f0-9]+:	d8 28                	fsubrs \(%rax\)
+ *[a-f0-9]+:	ff 20                	jmpq   \*\(%rax\)
+ *[a-f0-9]+:	0f 01 10             	lgdt   \(%rax\)
+ *[a-f0-9]+:	0f 01 18             	lidt   \(%rax\)
+ *[a-f0-9]+:	0f 00 10             	lldt   \(%rax\)
+ *[a-f0-9]+:	0f 01 30             	lmsw   \(%rax\)
+ *[a-f0-9]+:	0f 00 18             	ltr    \(%rax\)
+ *[a-f0-9]+:	8c 00                	mov    %es,\(%rax\)
+ *[a-f0-9]+:	8e 00                	mov    \(%rax\),%es
+ *[a-f0-9]+:	83 08 01             	orl    \$0x1,\(%rax\)
+ *[a-f0-9]+:	8f 00                	popq   \(%rax\)
+ *[a-f0-9]+:	0f a1                	popq   %fs
+ *[a-f0-9]+:	f3 0f ae 20          	ptwritel \(%rax\)
+ *[a-f0-9]+:	ff 30                	pushq  \(%rax\)
+ *[a-f0-9]+:	0f a0                	pushq  %fs
+ *[a-f0-9]+:	83 18 01             	sbbl   \$0x1,\(%rax\)
+ *[a-f0-9]+:	83 28 01             	subl   \$0x1,\(%rax\)
+ *[a-f0-9]+:	c5 fb 2a 00          	vcvtsi2sdl \(%rax\),%xmm0,%xmm0
+ *[a-f0-9]+:	62 61 7f 08 2a 38    	vcvtsi2sdl \(%rax\),%xmm0,%xmm31
+ *[a-f0-9]+:	c5 fa 2a 00          	vcvtsi2ssl \(%rax\),%xmm0,%xmm0
+ *[a-f0-9]+:	62 61 7e 08 2a 38    	vcvtsi2ssl \(%rax\),%xmm0,%xmm31
+ *[a-f0-9]+:	62 f1 7f 08 7b 00    	vcvtusi2sdl \(%rax\),%xmm0,%xmm0
+ *[a-f0-9]+:	62 f1 7e 08 7b 00    	vcvtusi2ssl \(%rax\),%xmm0,%xmm0
+ *[a-f0-9]+:	83 30 01             	xorl   \$0x1,\(%rax\)
+#pass
--- /dev/null
+++ b/gas/testsuite/gas/i386/noreg64.s
@@ -0,0 +1,59 @@
+	.text
+noreg:
+	adc	$1, (%rax)
+	add	$1, (%rax)
+	and	$1, (%rax)
+	bt	$1, (%rax)
+	btc	$1, (%rax)
+	btr	$1, (%rax)
+	bts	$1, (%rax)
+	call	*(%rax)
+	cmp	$1, (%rax)
+	cvtsi2sd (%rax), %xmm0
+	cvtsi2ss (%rax), %xmm0
+	fadd	(%rax)
+	fcom	(%rax)
+	fcomp	(%rax)
+	fdiv	(%rax)
+	fdivr	(%rax)
+	fiadd	(%rax)
+	ficom	(%rax)
+	ficomp	(%rax)
+	fidiv	(%rax)
+	fidivr	(%rax)
+	fild	(%rax)
+	fimul	(%rax)
+	fist	(%rax)
+	fistp	(%rax)
+	fisttp	(%rax)
+	fisub	(%rax)
+	fisubr	(%rax)
+	fld	(%rax)
+	fmul	(%rax)
+	fst	(%rax)
+	fstp	(%rax)
+	fsub	(%rax)
+	fsubr	(%rax)
+	jmp	*(%rax)
+	lgdt	(%rax)
+	lidt	(%rax)
+	lldt	(%rax)
+	lmsw	(%rax)
+	ltr	(%rax)
+	mov	%es, (%rax)
+	mov	(%rax), %es
+	or	$1, (%rax)
+	pop	(%rax)
+	pop	%fs
+	ptwrite	(%rax)
+	push	(%rax)
+	push	%fs
+	sbb	$1, (%rax)
+	sub	$1, (%rax)
+	vcvtsi2sd (%rax), %xmm0, %xmm0
+	vcvtsi2sd (%rax), %xmm0, %xmm31
+	vcvtsi2ss (%rax), %xmm0, %xmm0
+	vcvtsi2ss (%rax), %xmm0, %xmm31
+	vcvtusi2sd (%rax), %xmm0, %xmm0
+	vcvtusi2ss (%rax), %xmm0, %xmm0
+	xor	$1, (%rax)


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