| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; Disabling NEON used to incorrectly emit FABD instructions which resulted in |
| ; an assertion in verifyInstructionPredicates() while emitting the output. |
| ; RUN: llc -mtriple=aarch64 -mattr=+fullfp16,+neon < %s | FileCheck %s --check-prefix NEON-ENABLED |
| ; RUN: llc -mtriple=aarch64 -mattr=+fullfp16,-neon < %s | FileCheck %s --check-prefix NEON-DISABLED |
| ; Note: We need to use -filetype=obj to trigger verifyInstructionPredicates() |
| ; checks since it is not called when emitting assembly output. |
| ; RUN: llc -mtriple=aarch64 -mattr=+fullfp16,-neon -o /dev/null %s -filetype=obj |
| |
| declare half @llvm.fabs.f16(half) |
| declare float @llvm.fabs.f32(float) |
| declare double @llvm.fabs.f64(double) |
| |
| define half @fabd16(half %f1, half %f2) { |
| ; NEON-ENABLED-LABEL: fabd16: |
| ; NEON-ENABLED: // %bb.0: |
| ; NEON-ENABLED-NEXT: fabd h0, h0, h1 |
| ; NEON-ENABLED-NEXT: ret |
| ; |
| ; NEON-DISABLED-LABEL: fabd16: |
| ; NEON-DISABLED: // %bb.0: |
| ; NEON-DISABLED-NEXT: fsub h0, h0, h1 |
| ; NEON-DISABLED-NEXT: fabs h0, h0 |
| ; NEON-DISABLED-NEXT: ret |
| %sub = fsub half %f1, %f2 |
| %abs = tail call half @llvm.fabs.f16(half %sub) |
| ret half %abs |
| } |
| |
| define float @fabd32(float %f1, float %f2) { |
| ; NEON-ENABLED-LABEL: fabd32: |
| ; NEON-ENABLED: // %bb.0: |
| ; NEON-ENABLED-NEXT: fabd s0, s0, s1 |
| ; NEON-ENABLED-NEXT: ret |
| ; |
| ; NEON-DISABLED-LABEL: fabd32: |
| ; NEON-DISABLED: // %bb.0: |
| ; NEON-DISABLED-NEXT: fsub s0, s0, s1 |
| ; NEON-DISABLED-NEXT: fabs s0, s0 |
| ; NEON-DISABLED-NEXT: ret |
| %sub = fsub float %f1, %f2 |
| %abs = tail call float @llvm.fabs.f32(float %sub) |
| ret float %abs |
| } |
| |
| define double @fabd64(double %f1, double %f2) { |
| ; NEON-ENABLED-LABEL: fabd64: |
| ; NEON-ENABLED: // %bb.0: |
| ; NEON-ENABLED-NEXT: fabd d0, d0, d1 |
| ; NEON-ENABLED-NEXT: ret |
| ; |
| ; NEON-DISABLED-LABEL: fabd64: |
| ; NEON-DISABLED: // %bb.0: |
| ; NEON-DISABLED-NEXT: fsub d0, d0, d1 |
| ; NEON-DISABLED-NEXT: fabs d0, d0 |
| ; NEON-DISABLED-NEXT: ret |
| %sub = fsub double %f1, %f2 |
| %abs = tail call double @llvm.fabs.f64(double %sub) |
| ret double %abs |
| } |