Mercurial > hg > CbC > CbC_llvm

annotate test/CodeGen/X86/uint64-to-float.ll @ 120:1172e4bd9c6f

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update 4.0.0
author mir3636
date Fri, 25 Nov 2016 19:14:25 +0900
parents afa8332a0e37
children 803732b1fca8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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2 ; RUN: llc < %s -mtriple=i686-apple-unknown -mattr=+sse2 | FileCheck %s --check-prefix=X86
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3 ; RUN: llc < %s -mtriple=x86_64-apple-unknown -mattr=+sse2 | FileCheck %s --check-prefix=X64
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4
0
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5 ; Verify that we are using the efficient uitofp --> sitofp lowering illustrated
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6 ; by the compiler_rt implementation of __floatundisf.
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7 ; <rdar://problem/8493982>
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8
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9 define float @test(i64 %a) nounwind {
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10 ; X86-LABEL: test:
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11 ; X86: # BB#0: # %entry
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12 ; X86-NEXT: pushl %ebp
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13 ; X86-NEXT: movl %esp, %ebp
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14 ; X86-NEXT: andl $-8, %esp
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15 ; X86-NEXT: subl $16, %esp
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16 ; X86-NEXT: movq {{.*#+}} xmm0 = mem[0],zero
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17 ; X86-NEXT: movq %xmm0, {{[0-9]+}}(%esp)
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18 ; X86-NEXT: xorl %eax, %eax
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19 ; X86-NEXT: cmpl $0, 12(%ebp)
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20 ; X86-NEXT: setns %al
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21 ; X86-NEXT: fildll {{[0-9]+}}(%esp)
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22 ; X86-NEXT: fadds {{\.LCPI.*}}(,%eax,4)
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23 ; X86-NEXT: fstps {{[0-9]+}}(%esp)
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24 ; X86-NEXT: movss {{.*#+}} xmm0 = mem[0],zero,zero,zero
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25 ; X86-NEXT: movss %xmm0, (%esp)
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26 ; X86-NEXT: flds (%esp)
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27 ; X86-NEXT: movl %ebp, %esp
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28 ; X86-NEXT: popl %ebp
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29 ; X86-NEXT: retl
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30 ;
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31 ; X64-LABEL: test:
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32 ; X64: # BB#0: # %entry
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33 ; X64-NEXT: testq %rdi, %rdi
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34 ; X64-NEXT: js .LBB0_1
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35 ; X64-NEXT: # BB#2: # %entry
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36 ; X64-NEXT: cvtsi2ssq %rdi, %xmm0
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37 ; X64-NEXT: retq
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38 ; X64-NEXT: .LBB0_1:
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39 ; X64-NEXT: movq %rdi, %rax
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40 ; X64-NEXT: shrq %rax
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41 ; X64-NEXT: andl $1, %edi
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42 ; X64-NEXT: orq %rax, %rdi
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43 ; X64-NEXT: cvtsi2ssq %rdi, %xmm0
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44 ; X64-NEXT: addss %xmm0, %xmm0
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45 ; X64-NEXT: retq
0
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46 entry:
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47 %b = uitofp i64 %a to float
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48 ret float %b
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49 }