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Changes with additional mov instructions
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3 files changed

+117
-111
lines changed

3 files changed

+117
-111
lines changed

llvm/test/CodeGen/X86/8bit_cmov_of_trunc_promotion.ll

Lines changed: 90 additions & 88 deletions
Original file line numberDiff line numberDiff line change
@@ -11,62 +11,63 @@
1111
define i8 @t0(i32 %a1_wide_orig, i32 %a2_wide_orig, i32 %inc) nounwind {
1212
; I386-NOCMOV-LABEL: t0:
1313
; I386-NOCMOV: # %bb.0:
14-
; I386-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %ecx
15-
; I386-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %eax
16-
; I386-NOCMOV-NEXT: addl %ecx, %eax
17-
; I386-NOCMOV-NEXT: addl {{[0-9]+}}(%esp), %ecx
14+
; I386-NOCMOV-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
15+
; I386-NOCMOV-NEXT: movzbl {{[0-9]+}}(%esp), %eax
16+
; I386-NOCMOV-NEXT: addb %cl, %al
17+
; I386-NOCMOV-NEXT: addb {{[0-9]+}}(%esp), %cl
1818
; I386-NOCMOV-NEXT: cmpb %cl, %al
1919
; I386-NOCMOV-NEXT: jg .LBB0_2
2020
; I386-NOCMOV-NEXT: # %bb.1:
2121
; I386-NOCMOV-NEXT: movl %ecx, %eax
2222
; I386-NOCMOV-NEXT: .LBB0_2:
23-
; I386-NOCMOV-NEXT: # kill: def $al killed $al killed $eax
2423
; I386-NOCMOV-NEXT: retl
2524
;
2625
; I386-CMOV-LABEL: t0:
2726
; I386-CMOV: # %bb.0:
28-
; I386-CMOV-NEXT: movl {{[0-9]+}}(%esp), %eax
29-
; I386-CMOV-NEXT: movl {{[0-9]+}}(%esp), %ecx
30-
; I386-CMOV-NEXT: addl %eax, %ecx
31-
; I386-CMOV-NEXT: addl {{[0-9]+}}(%esp), %eax
27+
; I386-CMOV-NEXT: movzbl {{[0-9]+}}(%esp), %eax
28+
; I386-CMOV-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
29+
; I386-CMOV-NEXT: addb %al, %cl
30+
; I386-CMOV-NEXT: addb {{[0-9]+}}(%esp), %al
3231
; I386-CMOV-NEXT: cmpb %al, %cl
32+
; I386-CMOV-NEXT: movzbl %cl, %ecx
33+
; I386-CMOV-NEXT: movzbl %al, %eax
3334
; I386-CMOV-NEXT: cmovgl %ecx, %eax
3435
; I386-CMOV-NEXT: # kill: def $al killed $al killed $eax
3536
; I386-CMOV-NEXT: retl
3637
;
3738
; I686-NOCMOV-LABEL: t0:
3839
; I686-NOCMOV: # %bb.0:
39-
; I686-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %ecx
40-
; I686-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %eax
41-
; I686-NOCMOV-NEXT: addl %ecx, %eax
42-
; I686-NOCMOV-NEXT: addl {{[0-9]+}}(%esp), %ecx
40+
; I686-NOCMOV-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
41+
; I686-NOCMOV-NEXT: movzbl {{[0-9]+}}(%esp), %eax
42+
; I686-NOCMOV-NEXT: addb %cl, %al
43+
; I686-NOCMOV-NEXT: addb {{[0-9]+}}(%esp), %cl
4344
; I686-NOCMOV-NEXT: cmpb %cl, %al
4445
; I686-NOCMOV-NEXT: jg .LBB0_2
4546
; I686-NOCMOV-NEXT: # %bb.1:
4647
; I686-NOCMOV-NEXT: movl %ecx, %eax
4748
; I686-NOCMOV-NEXT: .LBB0_2:
48-
; I686-NOCMOV-NEXT: # kill: def $al killed $al killed $eax
4949
; I686-NOCMOV-NEXT: retl
5050
;
5151
; I686-CMOV-LABEL: t0:
5252
; I686-CMOV: # %bb.0:
53-
; I686-CMOV-NEXT: movl {{[0-9]+}}(%esp), %eax
54-
; I686-CMOV-NEXT: movl {{[0-9]+}}(%esp), %ecx
55-
; I686-CMOV-NEXT: addl %eax, %ecx
56-
; I686-CMOV-NEXT: addl {{[0-9]+}}(%esp), %eax
53+
; I686-CMOV-NEXT: movzbl {{[0-9]+}}(%esp), %eax
54+
; I686-CMOV-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
55+
; I686-CMOV-NEXT: addb %al, %cl
56+
; I686-CMOV-NEXT: addb {{[0-9]+}}(%esp), %al
5757
; I686-CMOV-NEXT: cmpb %al, %cl
58+
; I686-CMOV-NEXT: movzbl %cl, %ecx
59+
; I686-CMOV-NEXT: movzbl %al, %eax
5860
; I686-CMOV-NEXT: cmovgl %ecx, %eax
5961
; I686-CMOV-NEXT: # kill: def $al killed $al killed $eax
6062
; I686-CMOV-NEXT: retl
6163
;
6264
; X86_64-LABEL: t0:
6365
; X86_64: # %bb.0:
64-
; X86_64-NEXT: # kill: def $edx killed $edx def $rdx
65-
; X86_64-NEXT: # kill: def $esi killed $esi def $rsi
66-
; X86_64-NEXT: # kill: def $edi killed $edi def $rdi
67-
; X86_64-NEXT: leal (%rdi,%rdx), %ecx
68-
; X86_64-NEXT: leal (%rsi,%rdx), %eax
69-
; X86_64-NEXT: cmpb %al, %cl
66+
; X86_64-NEXT: addb %dl, %dil
67+
; X86_64-NEXT: addb %dl, %sil
68+
; X86_64-NEXT: cmpb %sil, %dil
69+
; X86_64-NEXT: movzbl %dil, %ecx
70+
; X86_64-NEXT: movzbl %sil, %eax
7071
; X86_64-NEXT: cmovgl %ecx, %eax
7172
; X86_64-NEXT: # kill: def $al killed $al killed $eax
7273
; X86_64-NEXT: retq
@@ -84,64 +85,63 @@ define i8 @t0(i32 %a1_wide_orig, i32 %a2_wide_orig, i32 %inc) nounwind {
8485
define i8 @neg_only_one_truncation(i32 %a1_wide_orig, i8 %a2_orig, i32 %inc) nounwind {
8586
; I386-NOCMOV-LABEL: neg_only_one_truncation:
8687
; I386-NOCMOV: # %bb.0:
87-
; I386-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %ecx
88-
; I386-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %eax
89-
; I386-NOCMOV-NEXT: addl %ecx, %eax
90-
; I386-NOCMOV-NEXT: addb {{[0-9]+}}(%esp), %cl
88+
; I386-NOCMOV-NEXT: movzbl {{[0-9]+}}(%esp), %eax
89+
; I386-NOCMOV-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
90+
; I386-NOCMOV-NEXT: addb %al, %cl
91+
; I386-NOCMOV-NEXT: addb {{[0-9]+}}(%esp), %al
9192
; I386-NOCMOV-NEXT: cmpb %cl, %al
9293
; I386-NOCMOV-NEXT: jg .LBB1_2
9394
; I386-NOCMOV-NEXT: # %bb.1:
9495
; I386-NOCMOV-NEXT: movl %ecx, %eax
9596
; I386-NOCMOV-NEXT: .LBB1_2:
96-
; I386-NOCMOV-NEXT: # kill: def $al killed $al killed $eax
9797
; I386-NOCMOV-NEXT: retl
9898
;
9999
; I386-CMOV-LABEL: neg_only_one_truncation:
100100
; I386-CMOV: # %bb.0:
101-
; I386-CMOV-NEXT: movl {{[0-9]+}}(%esp), %eax
102-
; I386-CMOV-NEXT: movl {{[0-9]+}}(%esp), %ecx
103-
; I386-CMOV-NEXT: addl %eax, %ecx
101+
; I386-CMOV-NEXT: movzbl {{[0-9]+}}(%esp), %eax
102+
; I386-CMOV-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
103+
; I386-CMOV-NEXT: addb %al, %cl
104104
; I386-CMOV-NEXT: addb {{[0-9]+}}(%esp), %al
105-
; I386-CMOV-NEXT: cmpb %al, %cl
106-
; I386-CMOV-NEXT: movzbl %al, %eax
107-
; I386-CMOV-NEXT: cmovgl %ecx, %eax
105+
; I386-CMOV-NEXT: cmpb %cl, %al
106+
; I386-CMOV-NEXT: movzbl %al, %edx
107+
; I386-CMOV-NEXT: movzbl %cl, %eax
108+
; I386-CMOV-NEXT: cmovgl %edx, %eax
108109
; I386-CMOV-NEXT: # kill: def $al killed $al killed $eax
109110
; I386-CMOV-NEXT: retl
110111
;
111112
; I686-NOCMOV-LABEL: neg_only_one_truncation:
112113
; I686-NOCMOV: # %bb.0:
113-
; I686-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %ecx
114-
; I686-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %eax
115-
; I686-NOCMOV-NEXT: addl %ecx, %eax
116-
; I686-NOCMOV-NEXT: addb {{[0-9]+}}(%esp), %cl
114+
; I686-NOCMOV-NEXT: movzbl {{[0-9]+}}(%esp), %eax
115+
; I686-NOCMOV-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
116+
; I686-NOCMOV-NEXT: addb %al, %cl
117+
; I686-NOCMOV-NEXT: addb {{[0-9]+}}(%esp), %al
117118
; I686-NOCMOV-NEXT: cmpb %cl, %al
118119
; I686-NOCMOV-NEXT: jg .LBB1_2
119120
; I686-NOCMOV-NEXT: # %bb.1:
120121
; I686-NOCMOV-NEXT: movl %ecx, %eax
121122
; I686-NOCMOV-NEXT: .LBB1_2:
122-
; I686-NOCMOV-NEXT: # kill: def $al killed $al killed $eax
123123
; I686-NOCMOV-NEXT: retl
124124
;
125125
; I686-CMOV-LABEL: neg_only_one_truncation:
126126
; I686-CMOV: # %bb.0:
127-
; I686-CMOV-NEXT: movl {{[0-9]+}}(%esp), %eax
128-
; I686-CMOV-NEXT: movl {{[0-9]+}}(%esp), %ecx
129-
; I686-CMOV-NEXT: addl %eax, %ecx
127+
; I686-CMOV-NEXT: movzbl {{[0-9]+}}(%esp), %eax
128+
; I686-CMOV-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
129+
; I686-CMOV-NEXT: addb %al, %cl
130130
; I686-CMOV-NEXT: addb {{[0-9]+}}(%esp), %al
131-
; I686-CMOV-NEXT: cmpb %al, %cl
132-
; I686-CMOV-NEXT: movzbl %al, %eax
133-
; I686-CMOV-NEXT: cmovgl %ecx, %eax
131+
; I686-CMOV-NEXT: cmpb %cl, %al
132+
; I686-CMOV-NEXT: movzbl %al, %edx
133+
; I686-CMOV-NEXT: movzbl %cl, %eax
134+
; I686-CMOV-NEXT: cmovgl %edx, %eax
134135
; I686-CMOV-NEXT: # kill: def $al killed $al killed $eax
135136
; I686-CMOV-NEXT: retl
136137
;
137138
; X86_64-LABEL: neg_only_one_truncation:
138139
; X86_64: # %bb.0:
139-
; X86_64-NEXT: # kill: def $edx killed $edx def $rdx
140-
; X86_64-NEXT: # kill: def $edi killed $edi def $rdi
141-
; X86_64-NEXT: leal (%rdi,%rdx), %ecx
142-
; X86_64-NEXT: addb %sil, %dl
143-
; X86_64-NEXT: cmpb %dl, %cl
144-
; X86_64-NEXT: movzbl %dl, %eax
140+
; X86_64-NEXT: addb %dl, %sil
141+
; X86_64-NEXT: addb %dl, %dil
142+
; X86_64-NEXT: cmpb %sil, %dil
143+
; X86_64-NEXT: movzbl %dil, %ecx
144+
; X86_64-NEXT: movzbl %sil, %eax
145145
; X86_64-NEXT: cmovgl %ecx, %eax
146146
; X86_64-NEXT: # kill: def $al killed $al killed $eax
147147
; X86_64-NEXT: retq
@@ -159,62 +159,63 @@ define i8 @neg_only_one_truncation(i32 %a1_wide_orig, i8 %a2_orig, i32 %inc) nou
159159
define i8 @neg_type_mismatch(i32 %a1_wide_orig, i16 %a2_wide_orig, i32 %inc) nounwind {
160160
; I386-NOCMOV-LABEL: neg_type_mismatch:
161161
; I386-NOCMOV: # %bb.0:
162-
; I386-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %ecx
163-
; I386-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %eax
164-
; I386-NOCMOV-NEXT: addl %ecx, %eax
165-
; I386-NOCMOV-NEXT: addw {{[0-9]+}}(%esp), %cx
162+
; I386-NOCMOV-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
163+
; I386-NOCMOV-NEXT: movzbl {{[0-9]+}}(%esp), %eax
164+
; I386-NOCMOV-NEXT: addb %cl, %al
165+
; I386-NOCMOV-NEXT: addb {{[0-9]+}}(%esp), %cl
166166
; I386-NOCMOV-NEXT: cmpb %cl, %al
167167
; I386-NOCMOV-NEXT: jg .LBB2_2
168168
; I386-NOCMOV-NEXT: # %bb.1:
169169
; I386-NOCMOV-NEXT: movl %ecx, %eax
170170
; I386-NOCMOV-NEXT: .LBB2_2:
171-
; I386-NOCMOV-NEXT: # kill: def $al killed $al killed $eax
172171
; I386-NOCMOV-NEXT: retl
173172
;
174173
; I386-CMOV-LABEL: neg_type_mismatch:
175174
; I386-CMOV: # %bb.0:
176-
; I386-CMOV-NEXT: movl {{[0-9]+}}(%esp), %eax
177-
; I386-CMOV-NEXT: movl {{[0-9]+}}(%esp), %ecx
178-
; I386-CMOV-NEXT: addl %eax, %ecx
179-
; I386-CMOV-NEXT: addw {{[0-9]+}}(%esp), %ax
175+
; I386-CMOV-NEXT: movzbl {{[0-9]+}}(%esp), %eax
176+
; I386-CMOV-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
177+
; I386-CMOV-NEXT: addb %al, %cl
178+
; I386-CMOV-NEXT: addb {{[0-9]+}}(%esp), %al
180179
; I386-CMOV-NEXT: cmpb %al, %cl
180+
; I386-CMOV-NEXT: movzbl %cl, %ecx
181+
; I386-CMOV-NEXT: movzbl %al, %eax
181182
; I386-CMOV-NEXT: cmovgl %ecx, %eax
182183
; I386-CMOV-NEXT: # kill: def $al killed $al killed $eax
183184
; I386-CMOV-NEXT: retl
184185
;
185186
; I686-NOCMOV-LABEL: neg_type_mismatch:
186187
; I686-NOCMOV: # %bb.0:
187-
; I686-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %ecx
188-
; I686-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %eax
189-
; I686-NOCMOV-NEXT: addl %ecx, %eax
190-
; I686-NOCMOV-NEXT: addw {{[0-9]+}}(%esp), %cx
188+
; I686-NOCMOV-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
189+
; I686-NOCMOV-NEXT: movzbl {{[0-9]+}}(%esp), %eax
190+
; I686-NOCMOV-NEXT: addb %cl, %al
191+
; I686-NOCMOV-NEXT: addb {{[0-9]+}}(%esp), %cl
191192
; I686-NOCMOV-NEXT: cmpb %cl, %al
192193
; I686-NOCMOV-NEXT: jg .LBB2_2
193194
; I686-NOCMOV-NEXT: # %bb.1:
194195
; I686-NOCMOV-NEXT: movl %ecx, %eax
195196
; I686-NOCMOV-NEXT: .LBB2_2:
196-
; I686-NOCMOV-NEXT: # kill: def $al killed $al killed $eax
197197
; I686-NOCMOV-NEXT: retl
198198
;
199199
; I686-CMOV-LABEL: neg_type_mismatch:
200200
; I686-CMOV: # %bb.0:
201-
; I686-CMOV-NEXT: movl {{[0-9]+}}(%esp), %eax
202-
; I686-CMOV-NEXT: movl {{[0-9]+}}(%esp), %ecx
203-
; I686-CMOV-NEXT: addl %eax, %ecx
204-
; I686-CMOV-NEXT: addw {{[0-9]+}}(%esp), %ax
201+
; I686-CMOV-NEXT: movzbl {{[0-9]+}}(%esp), %eax
202+
; I686-CMOV-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
203+
; I686-CMOV-NEXT: addb %al, %cl
204+
; I686-CMOV-NEXT: addb {{[0-9]+}}(%esp), %al
205205
; I686-CMOV-NEXT: cmpb %al, %cl
206+
; I686-CMOV-NEXT: movzbl %cl, %ecx
207+
; I686-CMOV-NEXT: movzbl %al, %eax
206208
; I686-CMOV-NEXT: cmovgl %ecx, %eax
207209
; I686-CMOV-NEXT: # kill: def $al killed $al killed $eax
208210
; I686-CMOV-NEXT: retl
209211
;
210212
; X86_64-LABEL: neg_type_mismatch:
211213
; X86_64: # %bb.0:
212-
; X86_64-NEXT: # kill: def $edx killed $edx def $rdx
213-
; X86_64-NEXT: # kill: def $esi killed $esi def $rsi
214-
; X86_64-NEXT: # kill: def $edi killed $edi def $rdi
215-
; X86_64-NEXT: leal (%rdi,%rdx), %ecx
216-
; X86_64-NEXT: leal (%rsi,%rdx), %eax
217-
; X86_64-NEXT: cmpb %al, %cl
214+
; X86_64-NEXT: addb %dl, %dil
215+
; X86_64-NEXT: addb %dl, %sil
216+
; X86_64-NEXT: cmpb %sil, %dil
217+
; X86_64-NEXT: movzbl %dil, %ecx
218+
; X86_64-NEXT: movzbl %sil, %eax
218219
; X86_64-NEXT: cmovgl %ecx, %eax
219220
; X86_64-NEXT: # kill: def $al killed $al killed $eax
220221
; X86_64-NEXT: retq
@@ -234,8 +235,8 @@ define i8 @negative_CopyFromReg(i32 %a1_wide, i32 %a2_wide_orig, i32 %inc) nounw
234235
; I386-NOCMOV-LABEL: negative_CopyFromReg:
235236
; I386-NOCMOV: # %bb.0:
236237
; I386-NOCMOV-NEXT: movzbl {{[0-9]+}}(%esp), %eax
237-
; I386-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %ecx
238-
; I386-NOCMOV-NEXT: addl {{[0-9]+}}(%esp), %ecx
238+
; I386-NOCMOV-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
239+
; I386-NOCMOV-NEXT: addb {{[0-9]+}}(%esp), %cl
239240
; I386-NOCMOV-NEXT: cmpb %cl, %al
240241
; I386-NOCMOV-NEXT: jg .LBB3_2
241242
; I386-NOCMOV-NEXT: # %bb.1:
@@ -246,18 +247,19 @@ define i8 @negative_CopyFromReg(i32 %a1_wide, i32 %a2_wide_orig, i32 %inc) nounw
246247
; I386-CMOV-LABEL: negative_CopyFromReg:
247248
; I386-CMOV: # %bb.0:
248249
; I386-CMOV-NEXT: movl {{[0-9]+}}(%esp), %ecx
249-
; I386-CMOV-NEXT: movl {{[0-9]+}}(%esp), %eax
250-
; I386-CMOV-NEXT: addl {{[0-9]+}}(%esp), %eax
250+
; I386-CMOV-NEXT: movzbl {{[0-9]+}}(%esp), %eax
251+
; I386-CMOV-NEXT: addb {{[0-9]+}}(%esp), %al
251252
; I386-CMOV-NEXT: cmpb %al, %cl
253+
; I386-CMOV-NEXT: movzbl %al, %eax
252254
; I386-CMOV-NEXT: cmovgl %ecx, %eax
253255
; I386-CMOV-NEXT: # kill: def $al killed $al killed $eax
254256
; I386-CMOV-NEXT: retl
255257
;
256258
; I686-NOCMOV-LABEL: negative_CopyFromReg:
257259
; I686-NOCMOV: # %bb.0:
258260
; I686-NOCMOV-NEXT: movzbl {{[0-9]+}}(%esp), %eax
259-
; I686-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %ecx
260-
; I686-NOCMOV-NEXT: addl {{[0-9]+}}(%esp), %ecx
261+
; I686-NOCMOV-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
262+
; I686-NOCMOV-NEXT: addb {{[0-9]+}}(%esp), %cl
261263
; I686-NOCMOV-NEXT: cmpb %cl, %al
262264
; I686-NOCMOV-NEXT: jg .LBB3_2
263265
; I686-NOCMOV-NEXT: # %bb.1:
@@ -268,19 +270,19 @@ define i8 @negative_CopyFromReg(i32 %a1_wide, i32 %a2_wide_orig, i32 %inc) nounw
268270
; I686-CMOV-LABEL: negative_CopyFromReg:
269271
; I686-CMOV: # %bb.0:
270272
; I686-CMOV-NEXT: movl {{[0-9]+}}(%esp), %ecx
271-
; I686-CMOV-NEXT: movl {{[0-9]+}}(%esp), %eax
272-
; I686-CMOV-NEXT: addl {{[0-9]+}}(%esp), %eax
273+
; I686-CMOV-NEXT: movzbl {{[0-9]+}}(%esp), %eax
274+
; I686-CMOV-NEXT: addb {{[0-9]+}}(%esp), %al
273275
; I686-CMOV-NEXT: cmpb %al, %cl
276+
; I686-CMOV-NEXT: movzbl %al, %eax
274277
; I686-CMOV-NEXT: cmovgl %ecx, %eax
275278
; I686-CMOV-NEXT: # kill: def $al killed $al killed $eax
276279
; I686-CMOV-NEXT: retl
277280
;
278281
; X86_64-LABEL: negative_CopyFromReg:
279282
; X86_64: # %bb.0:
280-
; X86_64-NEXT: # kill: def $edx killed $edx def $rdx
281-
; X86_64-NEXT: # kill: def $esi killed $esi def $rsi
282-
; X86_64-NEXT: leal (%rsi,%rdx), %eax
283-
; X86_64-NEXT: cmpb %al, %dil
283+
; X86_64-NEXT: addb %dl, %sil
284+
; X86_64-NEXT: cmpb %sil, %dil
285+
; X86_64-NEXT: movzbl %sil, %eax
284286
; X86_64-NEXT: cmovgl %edi, %eax
285287
; X86_64-NEXT: # kill: def $al killed $al killed $eax
286288
; X86_64-NEXT: retq

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