diff options
| -rw-r--r-- | llvm/test/CodeGen/X86/avx-vbroadcast.ll | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/avx-vbroadcast.ll b/llvm/test/CodeGen/X86/avx-vbroadcast.ll index 3426d6504c0..d3a261e9eb7 100644 --- a/llvm/test/CodeGen/X86/avx-vbroadcast.ll +++ b/llvm/test/CodeGen/X86/avx-vbroadcast.ll @@ -883,6 +883,54 @@ define void @broadcast_v16i32(i32* %a, <16 x i32>* %b) { } ; +; Broadcast scale factor for xyz vector - slp will have vectorized xy. +; FIXME: Load as a broadcast and then use the scalar 0'th element. +; +define double @broadcast_scale_xyz(double* nocapture readonly, double* nocapture readonly) nounwind { +; X32-LABEL: broadcast_scale_xyz: +; X32: ## %bb.0: +; X32-NEXT: subl $12, %esp +; X32-NEXT: movl {{[0-9]+}}(%esp), %eax +; X32-NEXT: movl {{[0-9]+}}(%esp), %ecx +; X32-NEXT: vmovsd {{.*#+}} xmm0 = mem[0],zero +; X32-NEXT: vmovddup {{.*#+}} xmm1 = xmm0[0,0] +; X32-NEXT: vmulpd (%eax), %xmm1, %xmm1 +; X32-NEXT: vmulsd 16(%eax), %xmm0, %xmm0 +; X32-NEXT: vpermilpd {{.*#+}} xmm2 = xmm1[1,0] +; X32-NEXT: vaddsd %xmm2, %xmm1, %xmm1 +; X32-NEXT: vaddsd %xmm1, %xmm0, %xmm0 +; X32-NEXT: vmovsd %xmm0, (%esp) +; X32-NEXT: fldl (%esp) +; X32-NEXT: addl $12, %esp +; X32-NEXT: retl +; +; X64-LABEL: broadcast_scale_xyz: +; X64: ## %bb.0: +; X64-NEXT: vmovsd {{.*#+}} xmm0 = mem[0],zero +; X64-NEXT: vmovddup {{.*#+}} xmm1 = xmm0[0,0] +; X64-NEXT: vmulpd (%rsi), %xmm1, %xmm1 +; X64-NEXT: vmulsd 16(%rsi), %xmm0, %xmm0 +; X64-NEXT: vpermilpd {{.*#+}} xmm2 = xmm1[1,0] +; X64-NEXT: vaddsd %xmm2, %xmm1, %xmm1 +; X64-NEXT: vaddsd %xmm1, %xmm0, %xmm0 +; X64-NEXT: retq + %3 = bitcast double* %1 to <2 x double>* + %4 = load <2 x double>, <2 x double>* %3, align 8 + %5 = getelementptr inbounds double, double* %1, i64 2 + %6 = load double, double* %5, align 8 + %7 = load double, double* %0, align 8 + %8 = insertelement <2 x double> undef, double %7, i32 0 + %9 = shufflevector <2 x double> %8, <2 x double> undef, <2 x i32> zeroinitializer + %10 = fmul <2 x double> %4, %9 + %11 = fmul double %6, %7 + %12 = extractelement <2 x double> %10, i32 0 + %13 = extractelement <2 x double> %10, i32 1 + %14 = fadd double %12, %13 + %15 = fadd double %11, %14 + ret double %15 +} + +; ; When VBROADCAST replaces an existing load, ensure it still respects lifetime dependencies. ; define float @broadcast_lifetime() nounwind { |
