1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
| # RUN: llc -O0 -mtriple arm-- -mattr=+v6 -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s --check-prefixes=CHECK,ARM
# RUN: llc -O0 -mtriple thumb-- -mattr=+v6t2 -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s --check-prefixes=CHECK,THUMB
--- |
define void @test_clz() { ret void }
...
---
name: test_clz
# CHECK-LABEL: name: test_clz
legalized: true
regBankSelected: true
selected: false
# CHECK: selected: true
registers:
- { id: 0, class: gprb }
- { id: 1, class: gprb }
body: |
bb.0:
liveins: $r0
%0(s32) = COPY $r0
; ARM: [[VREGX:%[0-9]+]]:gpr = COPY $r0
; THUMB: [[VREGX:%[0-9]+]]:rgpr = COPY $r0
%1(s32) = G_CTLZ %0(s32)
; ARM: [[VREGR:%[0-9]+]]:gpr = CLZ [[VREGX]], 14, $noreg
; THUMB: [[VREGR:%[0-9]+]]:rgpr = t2CLZ [[VREGX]], 14, $noreg
$r0 = COPY %1(s32)
; CHECK: $r0 = COPY [[VREGR]]
BX_RET 14, $noreg, implicit $r0
; CHECK: BX_RET 14, $noreg, implicit $r0
...
|