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The powi intrinsic requires special handling because it always takes a single integer power regardless of the result type. As a result, we can vectorize only if the powers are equal. Fixes PR12364. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153797 91177308-0d34-0410-b5e6-96231b3b80d8
104 lines
4.5 KiB
LLVM
104 lines
4.5 KiB
LLVM
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
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; RUN: opt < %s -bb-vectorize -bb-vectorize-req-chain-depth=3 -instcombine -gvn -S | FileCheck %s
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declare double @llvm.fma.f64(double, double, double)
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declare double @llvm.cos.f64(double)
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declare double @llvm.powi.f64(double, i32)
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; Basic depth-3 chain with fma
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define double @test1(double %A1, double %A2, double %B1, double %B2, double %C1, double %C2) {
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%X1 = fsub double %A1, %B1
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%X2 = fsub double %A2, %B2
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%Y1 = call double @llvm.fma.f64(double %X1, double %A1, double %C1)
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%Y2 = call double @llvm.fma.f64(double %X2, double %A2, double %C2)
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%Z1 = fadd double %Y1, %B1
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%Z2 = fadd double %Y2, %B2
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%R = fmul double %Z1, %Z2
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ret double %R
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; CHECK: @test1
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; CHECK: %X1.v.i1.1 = insertelement <2 x double> undef, double %B1, i32 0
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; CHECK: %X1.v.i0.1 = insertelement <2 x double> undef, double %A1, i32 0
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; CHECK: %X1.v.i1.2 = insertelement <2 x double> %X1.v.i1.1, double %B2, i32 1
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; CHECK: %X1.v.i0.2 = insertelement <2 x double> %X1.v.i0.1, double %A2, i32 1
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; CHECK: %X1 = fsub <2 x double> %X1.v.i0.2, %X1.v.i1.2
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; CHECK: %Y1.v.i2.1 = insertelement <2 x double> undef, double %C1, i32 0
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; CHECK: %Y1.v.i2.2 = insertelement <2 x double> %Y1.v.i2.1, double %C2, i32 1
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; CHECK: %Y1 = call <2 x double> @llvm.fma.v2f64(<2 x double> %X1, <2 x double> %X1.v.i0.2, <2 x double> %Y1.v.i2.2)
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; CHECK: %Z1 = fadd <2 x double> %Y1, %X1.v.i1.2
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; CHECK: %Z1.v.r1 = extractelement <2 x double> %Z1, i32 0
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; CHECK: %Z1.v.r2 = extractelement <2 x double> %Z1, i32 1
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; CHECK: %R = fmul double %Z1.v.r1, %Z1.v.r2
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; CHECK: ret double %R
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}
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; Basic depth-3 chain with cos
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define double @test2(double %A1, double %A2, double %B1, double %B2) {
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%X1 = fsub double %A1, %B1
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%X2 = fsub double %A2, %B2
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%Y1 = call double @llvm.cos.f64(double %X1)
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%Y2 = call double @llvm.cos.f64(double %X2)
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%Z1 = fadd double %Y1, %B1
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%Z2 = fadd double %Y2, %B2
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%R = fmul double %Z1, %Z2
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ret double %R
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; CHECK: @test2
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; CHECK: %X1.v.i1.1 = insertelement <2 x double> undef, double %B1, i32 0
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; CHECK: %X1.v.i0.1 = insertelement <2 x double> undef, double %A1, i32 0
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; CHECK: %X1.v.i1.2 = insertelement <2 x double> %X1.v.i1.1, double %B2, i32 1
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; CHECK: %X1.v.i0.2 = insertelement <2 x double> %X1.v.i0.1, double %A2, i32 1
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; CHECK: %X1 = fsub <2 x double> %X1.v.i0.2, %X1.v.i1.2
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; CHECK: %Y1 = call <2 x double> @llvm.cos.v2f64(<2 x double> %X1)
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; CHECK: %Z1 = fadd <2 x double> %Y1, %X1.v.i1.2
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; CHECK: %Z1.v.r1 = extractelement <2 x double> %Z1, i32 0
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; CHECK: %Z1.v.r2 = extractelement <2 x double> %Z1, i32 1
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; CHECK: %R = fmul double %Z1.v.r1, %Z1.v.r2
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; CHECK: ret double %R
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}
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; Basic depth-3 chain with powi
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define double @test3(double %A1, double %A2, double %B1, double %B2, i32 %P) {
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%X1 = fsub double %A1, %B1
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%X2 = fsub double %A2, %B2
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%Y1 = call double @llvm.powi.f64(double %X1, i32 %P)
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%Y2 = call double @llvm.powi.f64(double %X2, i32 %P)
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%Z1 = fadd double %Y1, %B1
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%Z2 = fadd double %Y2, %B2
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%R = fmul double %Z1, %Z2
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ret double %R
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; CHECK: @test3
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; CHECK: %X1.v.i1.1 = insertelement <2 x double> undef, double %B1, i32 0
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; CHECK: %X1.v.i0.1 = insertelement <2 x double> undef, double %A1, i32 0
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; CHECK: %X1.v.i1.2 = insertelement <2 x double> %X1.v.i1.1, double %B2, i32 1
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; CHECK: %X1.v.i0.2 = insertelement <2 x double> %X1.v.i0.1, double %A2, i32 1
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; CHECK: %X1 = fsub <2 x double> %X1.v.i0.2, %X1.v.i1.2
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; CHECK: %Y1 = call <2 x double> @llvm.powi.v2f64(<2 x double> %X1, i32 %P)
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; CHECK: %Z1 = fadd <2 x double> %Y1, %X1.v.i1.2
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; CHECK: %Z1.v.r1 = extractelement <2 x double> %Z1, i32 0
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; CHECK: %Z1.v.r2 = extractelement <2 x double> %Z1, i32 1
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; CHECK: %R = fmul double %Z1.v.r1, %Z1.v.r2
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; CHECK: ret double %R
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}
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; Basic depth-3 chain with powi (different powers: should not vectorize)
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define double @test4(double %A1, double %A2, double %B1, double %B2, i32 %P) {
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%X1 = fsub double %A1, %B1
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%X2 = fsub double %A2, %B2
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%P2 = add i32 %P, 1
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%Y1 = call double @llvm.powi.f64(double %X1, i32 %P)
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%Y2 = call double @llvm.powi.f64(double %X2, i32 %P2)
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%Z1 = fadd double %Y1, %B1
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%Z2 = fadd double %Y2, %B2
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%R = fmul double %Z1, %Z2
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ret double %R
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; CHECK: @test4
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; CHECK-NOT: <2 x double>
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; CHECK: ret double %R
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}
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; CHECK: declare <2 x double> @llvm.fma.v2f64(<2 x double>, <2 x double>, <2 x double>) nounwind readnone
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; CHECK: declare <2 x double> @llvm.cos.v2f64(<2 x double>) nounwind readonly
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; CHECK: declare <2 x double> @llvm.powi.v2f64(<2 x double>, i32) nounwind readonly
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