derek.holloway
7502bf64a4
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60 lines
1.9 KiB
LLVM
60 lines
1.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+sse2,+bmi | FileCheck %s --check-prefixes=CHECK,X86
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse2,+bmi | FileCheck %s --check-prefixes=CHECK,X64
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declare i32 @llvm.x86.bmi.bextr.32(i32, i32)
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define i32 @bextr_zero_length(i32 %x, i32 %y) nounwind {
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; CHECK-LABEL: bextr_zero_length:
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; CHECK: # %bb.0:
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: ret{{[l|q]}}
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%1 = and i32 %y, 255
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%2 = tail call i32 @llvm.x86.bmi.bextr.32(i32 %x, i32 %1)
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ret i32 %2
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}
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define i32 @bextr_big_shift(i32 %x, i32 %y) nounwind {
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; X86-LABEL: bextr_big_shift:
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; X86: # %bb.0:
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; X86-NEXT: movl $255, %eax
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; X86-NEXT: orl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: bextrl %eax, {{[0-9]+}}(%esp), %eax
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; X86-NEXT: retl
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;
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; X64-LABEL: bextr_big_shift:
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; X64: # %bb.0:
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; X64-NEXT: orl $255, %esi
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; X64-NEXT: bextrl %esi, %edi, %eax
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; X64-NEXT: retq
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%1 = or i32 %y, 255
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%2 = tail call i32 @llvm.x86.bmi.bextr.32(i32 %x, i32 %1)
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ret i32 %2
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}
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define float @bextr_uitofp(i32 %x, i32 %y) nounwind {
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; X86-LABEL: bextr_uitofp:
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; X86: # %bb.0:
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; X86-NEXT: pushl %eax
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; X86-NEXT: movl $3855, %eax # imm = 0xF0F
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; X86-NEXT: bextrl %eax, {{[0-9]+}}(%esp), %eax
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; X86-NEXT: movd %eax, %xmm0
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; X86-NEXT: por {{\.?LCPI[0-9]+_[0-9]+}}, %xmm0
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; X86-NEXT: subsd {{\.?LCPI[0-9]+_[0-9]+}}, %xmm0
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; X86-NEXT: cvtsd2ss %xmm0, %xmm0
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; X86-NEXT: movss %xmm0, (%esp)
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; X86-NEXT: flds (%esp)
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; X86-NEXT: popl %eax
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; X86-NEXT: retl
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;
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; X64-LABEL: bextr_uitofp:
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; X64: # %bb.0:
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; X64-NEXT: movl $3855, %eax # imm = 0xF0F
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; X64-NEXT: bextrl %eax, %edi, %eax
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; X64-NEXT: cvtsi2ss %eax, %xmm0
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; X64-NEXT: retq
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%1 = tail call i32 @llvm.x86.bmi.bextr.32(i32 %x, i32 3855)
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%2 = uitofp i32 %1 to float
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ret float %2
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}
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