Training courses

Kernel and Embedded Linux

Bootlin training courses

Embedded Linux, kernel,
Yocto Project, Buildroot, real-time,
graphics, boot time, debugging...

Bootlin logo

Elixir Cross Referencer

Open Menu /external/bsd/llvm/dist/llvm/test/tools/llvm-mca/X86/BtVer2/resources-lzcnt.s 
 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
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
# NOTE: Assertions have been autogenerated by utils/update_mca_test_checks.py
# RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=btver2 -instruction-tables < %s | FileCheck %s

lzcntw      %cx, %cx
lzcntw      (%rax), %cx

lzcntl      %eax, %ecx
lzcntl      (%rax), %ecx

lzcntq      %rax, %rcx
lzcntq      (%rax), %rcx

# CHECK:      Instruction Info:
# CHECK-NEXT: [1]: #uOps
# CHECK-NEXT: [2]: Latency
# CHECK-NEXT: [3]: RThroughput
# CHECK-NEXT: [4]: MayLoad
# CHECK-NEXT: [5]: MayStore
# CHECK-NEXT: [6]: HasSideEffects (U)

# CHECK:      [1]    [2]    [3]    [4]    [5]    [6]    Instructions:
# CHECK-NEXT:  1      1     0.50                        lzcntw	%cx, %cx
# CHECK-NEXT:  1      4     1.00    *                   lzcntw	(%rax), %cx
# CHECK-NEXT:  1      1     0.50                        lzcntl	%eax, %ecx
# CHECK-NEXT:  1      4     1.00    *                   lzcntl	(%rax), %ecx
# CHECK-NEXT:  1      1     0.50                        lzcntq	%rax, %rcx
# CHECK-NEXT:  1      4     1.00    *                   lzcntq	(%rax), %rcx

# CHECK:      Resources:
# CHECK-NEXT: [0]   - JALU0
# CHECK-NEXT: [1]   - JALU1
# CHECK-NEXT: [2]   - JDiv
# CHECK-NEXT: [3]   - JFPA
# CHECK-NEXT: [4]   - JFPM
# CHECK-NEXT: [5]   - JFPU0
# CHECK-NEXT: [6]   - JFPU1
# CHECK-NEXT: [7]   - JLAGU
# CHECK-NEXT: [8]   - JMul
# CHECK-NEXT: [9]   - JSAGU
# CHECK-NEXT: [10]  - JSTC
# CHECK-NEXT: [11]  - JVALU0
# CHECK-NEXT: [12]  - JVALU1
# CHECK-NEXT: [13]  - JVIMUL

# CHECK:      Resource pressure per iteration:
# CHECK-NEXT: [0]    [1]    [2]    [3]    [4]    [5]    [6]    [7]    [8]    [9]    [10]   [11]   [12]   [13]
# CHECK-NEXT: 3.00   3.00    -      -      -      -      -     3.00    -      -      -      -      -      -

# CHECK:      Resource pressure by instruction:
# CHECK-NEXT: [0]    [1]    [2]    [3]    [4]    [5]    [6]    [7]    [8]    [9]    [10]   [11]   [12]   [13]   Instructions:
# CHECK-NEXT: 0.50   0.50    -      -      -      -      -      -      -      -      -      -      -      -     lzcntw	%cx, %cx
# CHECK-NEXT: 0.50   0.50    -      -      -      -      -     1.00    -      -      -      -      -      -     lzcntw	(%rax), %cx
# CHECK-NEXT: 0.50   0.50    -      -      -      -      -      -      -      -      -      -      -      -     lzcntl	%eax, %ecx
# CHECK-NEXT: 0.50   0.50    -      -      -      -      -     1.00    -      -      -      -      -      -     lzcntl	(%rax), %ecx
# CHECK-NEXT: 0.50   0.50    -      -      -      -      -      -      -      -      -      -      -      -     lzcntq	%rax, %rcx
# CHECK-NEXT: 0.50   0.50    -      -      -      -      -     1.00    -      -      -      -      -      -     lzcntq	(%rax), %rcx