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48 lines
1.7 KiB
LLVM
48 lines
1.7 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -O2 -mtriple mipsel--linux-android -mattr=+dsp -verify-machineinstrs | FileCheck %s
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; Function below generates a v2i16 to f32 bitcast.
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; Test that we are able to match it.
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define float @f(<8 x i16>* %a) {
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; CHECK-LABEL: f:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: addiu $sp, $sp, -32
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; CHECK-NEXT: .cfi_def_cfa_offset 32
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; CHECK-NEXT: sw $fp, 28($sp) # 4-byte Folded Spill
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; CHECK-NEXT: .cfi_offset 30, -4
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; CHECK-NEXT: move $fp, $sp
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; CHECK-NEXT: .cfi_def_cfa_register 30
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; CHECK-NEXT: addiu $1, $zero, -16
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; CHECK-NEXT: and $sp, $sp, $1
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; CHECK-NEXT: lw $1, 8($4)
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; CHECK-NEXT: lw $2, 4($4)
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; CHECK-NEXT: lw $3, 12($4)
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; CHECK-NEXT: sw $3, 12($sp)
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; CHECK-NEXT: sw $1, 8($sp)
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; CHECK-NEXT: sw $2, 4($sp)
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; CHECK-NEXT: lw $1, 0($4)
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; CHECK-NEXT: sw $1, 0($sp)
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; CHECK-NEXT: mtc1 $1, $f0
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; CHECK-NEXT: move $sp, $fp
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; CHECK-NEXT: lw $fp, 28($sp) # 4-byte Folded Reload
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; CHECK-NEXT: jr $ra
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; CHECK-NEXT: addiu $sp, $sp, 32
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; CHECK-NEXT: .set at
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; CHECK-NEXT: .set macro
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; CHECK-NEXT: .set reorder
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; CHECK-NEXT: .end f
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entry:
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%m = alloca <8 x i16>
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%0 = load <8 x i16>, <8 x i16>* %a
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store <8 x i16> %0, <8 x i16>* %m
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%1 = bitcast <8 x i16> %0 to <4 x float>
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%2 = shufflevector <4 x float> %1, <4 x float> undef, <8 x i32> <i32 0, i32 3, i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef>
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%3 = shufflevector <8 x float> zeroinitializer, <8 x float> %2, <8 x i32> <i32 8, i32 9, i32 10, i32 11, i32 4, i32 5, i32 6, i32 7>
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%4 = bitcast <8 x float> %3 to <8 x i32>
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%5 = extractelement <8 x i32> %4, i32 0
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%6 = bitcast i32 %5 to float
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ret float %6
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}
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