1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py 2; RUN: llc < %s -mtriple=arm64-eabi | FileCheck %s 3 4define float @t1(i1 %a, float %b, float %c) nounwind { 5; CHECK-LABEL: t1: 6; CHECK: // %bb.0: 7; CHECK-NEXT: tst w0, #0x1 8; CHECK-NEXT: fcsel s0, s0, s1, ne 9; CHECK-NEXT: ret 10 %sel = select i1 %a, float %b, float %c 11 ret float %sel 12} 13 14; This may infinite loop if isNegatibleForFree and getNegatedExpression are conflicted. 15 16define double @negation_propagation(double* %arg, double %arg1, double %arg2) { 17; CHECK-LABEL: negation_propagation: 18; CHECK: // %bb.0: 19; CHECK-NEXT: fmov d2, #1.00000000 20; CHECK-NEXT: fdiv d0, d2, d0 21; CHECK-NEXT: fmul d2, d0, d0 22; CHECK-NEXT: fmul d1, d0, d1 23; CHECK-NEXT: fmul d0, d0, d2 24; CHECK-NEXT: fsub d0, d1, d0 25; CHECK-NEXT: ret 26 %t = fdiv double 1.0, %arg1 27 %t7 = fmul double %t, %arg2 28 %t10 = fneg double %t7 29 %t11 = fmul double %t, %t 30 %t13 = fsub double %t11, %t 31 %t14 = fneg double %t 32 %t15 = fmul double %t, %t14 33 %t16 = fmul double %t, %t15 34 %t18 = fadd double %t16, %t7 35 ret double %t18 36} 37 38define { double, double } @testfn(double %x, double %y) #0 { 39; CHECK-LABEL: testfn: 40; CHECK: // %bb.0: 41; CHECK-NEXT: fsub d0, d0, d1 42; CHECK-NEXT: fneg d1, d0 43; CHECK-NEXT: ret 44 %sub = fsub fast double %x, %y 45 %neg = fneg fast double %sub 46 %r0 = insertvalue { double, double } undef, double %sub, 0 47 %r1 = insertvalue { double, double } %r0, double %neg, 1 48 ret { double, double } %r1 49} 50 51define <2 x float> @fake_fneg_splat_extract(<4 x float> %rhs) { 52; CHECK-LABEL: fake_fneg_splat_extract: 53; CHECK: // %bb.0: 54; CHECK-NEXT: fneg v0.4s, v0.4s 55; CHECK-NEXT: dup v0.2s, v0.s[3] 56; CHECK-NEXT: ret 57 %rhs_neg = fsub <4 x float> <float -0.0, float -0.0, float -0.0, float -0.0>, %rhs 58 %splat = shufflevector <4 x float> %rhs_neg, <4 x float> undef, <2 x i32> <i32 3, i32 3> 59 ret <2 x float> %splat 60} 61 62define <2 x float> @fake_fneg_splat_extract_undef(<4 x float> %rhs) { 63; CHECK-LABEL: fake_fneg_splat_extract_undef: 64; CHECK: // %bb.0: 65; CHECK-NEXT: fneg v0.4s, v0.4s 66; CHECK-NEXT: dup v0.2s, v0.s[3] 67; CHECK-NEXT: ret 68 %rhs_neg = fsub <4 x float> <float undef, float -0.0, float -0.0, float -0.0>, %rhs 69 %splat = shufflevector <4 x float> %rhs_neg, <4 x float> undef, <2 x i32> <i32 3, i32 3> 70 ret <2 x float> %splat 71} 72 73attributes #0 = { "no-signed-zeros-fp-math"="true" } 74