derek.holloway
7502bf64a4
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63 lines
2.7 KiB
LLVM
63 lines
2.7 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s --mattr=+mve.fp,+fp64 -o - -verify-machineinstrs | FileCheck %s
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target triple = "thumbv8.1m.main-none-none-eabi"
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; Expected to not transform
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define arm_aapcs_vfpcc <2 x double> @complex_mul_v2f64(<2 x double> %a, <2 x double> %b) {
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; CHECK-LABEL: complex_mul_v2f64:
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; CHECK: @ %bb.0: @ %entry
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; CHECK-NEXT: vmul.f64 d5, d3, d0
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; CHECK-NEXT: vmul.f64 d4, d1, d3
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; CHECK-NEXT: vfma.f64 d5, d2, d1
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; CHECK-NEXT: vfnms.f64 d4, d2, d0
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; CHECK-NEXT: vmov q0, q2
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; CHECK-NEXT: bx lr
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entry:
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%a.real = shufflevector <2 x double> %a, <2 x double> poison, <1 x i32> <i32 0>
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%a.imag = shufflevector <2 x double> %a, <2 x double> poison, <1 x i32> <i32 1>
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%b.real = shufflevector <2 x double> %b, <2 x double> poison, <1 x i32> <i32 0>
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%b.imag = shufflevector <2 x double> %b, <2 x double> poison, <1 x i32> <i32 1>
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%0 = fmul fast <1 x double> %b.imag, %a.real
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%1 = fmul fast <1 x double> %b.real, %a.imag
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%2 = fadd fast <1 x double> %1, %0
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%3 = fmul fast <1 x double> %b.real, %a.real
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%4 = fmul fast <1 x double> %a.imag, %b.imag
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%5 = fsub fast <1 x double> %3, %4
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%interleaved.vec = shufflevector <1 x double> %5, <1 x double> %2, <2 x i32> <i32 0, i32 1>
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ret <2 x double> %interleaved.vec
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}
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; Expected to not transform
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define arm_aapcs_vfpcc <4 x double> @complex_mul_v4f64(<4 x double> %a, <4 x double> %b) {
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; CHECK-LABEL: complex_mul_v4f64:
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; CHECK: @ %bb.0: @ %entry
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; CHECK-NEXT: .vsave {d8, d9, d10, d11}
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; CHECK-NEXT: vpush {d8, d9, d10, d11}
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; CHECK-NEXT: vmul.f64 d9, d7, d2
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; CHECK-NEXT: vmov q5, q0
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; CHECK-NEXT: vmul.f64 d8, d3, d7
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; CHECK-NEXT: vfma.f64 d9, d6, d3
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; CHECK-NEXT: vfnms.f64 d8, d6, d2
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; CHECK-NEXT: vmul.f64 d1, d5, d10
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; CHECK-NEXT: vmov q1, q4
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; CHECK-NEXT: vmul.f64 d0, d11, d5
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; CHECK-NEXT: vfma.f64 d1, d4, d11
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; CHECK-NEXT: vfnms.f64 d0, d4, d10
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; CHECK-NEXT: vpop {d8, d9, d10, d11}
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; CHECK-NEXT: bx lr
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entry:
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%a.real = shufflevector <4 x double> %a, <4 x double> poison, <2 x i32> <i32 0, i32 2>
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%a.imag = shufflevector <4 x double> %a, <4 x double> poison, <2 x i32> <i32 1, i32 3>
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%b.real = shufflevector <4 x double> %b, <4 x double> poison, <2 x i32> <i32 0, i32 2>
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%b.imag = shufflevector <4 x double> %b, <4 x double> poison, <2 x i32> <i32 1, i32 3>
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%0 = fmul fast <2 x double> %b.imag, %a.real
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%1 = fmul fast <2 x double> %b.real, %a.imag
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%2 = fadd fast <2 x double> %1, %0
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%3 = fmul fast <2 x double> %b.real, %a.real
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%4 = fmul fast <2 x double> %a.imag, %b.imag
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%5 = fsub fast <2 x double> %3, %4
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%interleaved.vec = shufflevector <2 x double> %5, <2 x double> %2, <4 x i32> <i32 0, i32 2, i32 1, i32 3>
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ret <4 x double> %interleaved.vec
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}
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