| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc < %s -mtriple=arm64-eabi | FileCheck %s |
| |
| define float @t1(i1 %a, float %b, float %c) nounwind { |
| ; CHECK-LABEL: t1: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: tst w0, #0x1 |
| ; CHECK-NEXT: fcsel s0, s0, s1, ne |
| ; CHECK-NEXT: ret |
| %sel = select i1 %a, float %b, float %c |
| ret float %sel |
| } |
| |
| ; This may infinite loop if isNegatibleForFree and getNegatedExpression are conflicted. |
| |
| define double @negation_propagation(ptr %arg, double %arg1, double %arg2) { |
| ; CHECK-LABEL: negation_propagation: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: fmov d2, #1.00000000 |
| ; CHECK-NEXT: fdiv d0, d2, d0 |
| ; CHECK-NEXT: fmul d2, d0, d0 |
| ; CHECK-NEXT: fmul d1, d0, d1 |
| ; CHECK-NEXT: fmul d0, d0, d2 |
| ; CHECK-NEXT: fsub d0, d1, d0 |
| ; CHECK-NEXT: ret |
| %t = fdiv double 1.0, %arg1 |
| %t7 = fmul double %t, %arg2 |
| %t10 = fneg double %t7 |
| %t11 = fmul double %t, %t |
| %t13 = fsub double %t11, %t |
| %t14 = fneg double %t |
| %t15 = fmul double %t, %t14 |
| %t16 = fmul double %t, %t15 |
| %t18 = fadd double %t16, %t7 |
| ret double %t18 |
| } |
| |
| define { double, double } @testfn(double %x, double %y) #0 { |
| ; CHECK-LABEL: testfn: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: fsub d0, d0, d1 |
| ; CHECK-NEXT: fneg d1, d0 |
| ; CHECK-NEXT: ret |
| %sub = fsub fast double %x, %y |
| %neg = fneg fast double %sub |
| %r0 = insertvalue { double, double } undef, double %sub, 0 |
| %r1 = insertvalue { double, double } %r0, double %neg, 1 |
| ret { double, double } %r1 |
| } |
| |
| define <2 x float> @fake_fneg_splat_extract(<4 x float> %rhs) { |
| ; CHECK-LABEL: fake_fneg_splat_extract: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: fneg v0.4s, v0.4s |
| ; CHECK-NEXT: dup v0.2s, v0.s[3] |
| ; CHECK-NEXT: ret |
| %rhs_neg = fsub <4 x float> <float -0.0, float -0.0, float -0.0, float -0.0>, %rhs |
| %splat = shufflevector <4 x float> %rhs_neg, <4 x float> undef, <2 x i32> <i32 3, i32 3> |
| ret <2 x float> %splat |
| } |
| |
| define <2 x float> @fake_fneg_splat_extract_undef(<4 x float> %rhs) { |
| ; CHECK-LABEL: fake_fneg_splat_extract_undef: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: fneg v0.4s, v0.4s |
| ; CHECK-NEXT: dup v0.2s, v0.s[3] |
| ; CHECK-NEXT: ret |
| %rhs_neg = fsub <4 x float> <float undef, float -0.0, float -0.0, float -0.0>, %rhs |
| %splat = shufflevector <4 x float> %rhs_neg, <4 x float> undef, <2 x i32> <i32 3, i32 3> |
| ret <2 x float> %splat |
| } |
| |
| attributes #0 = { "no-signed-zeros-fp-math"="true" } |