| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py | |
| ; RUN: llc -verify-machineinstrs -mtriple=powerpc64le < %s | FileCheck %s | |
| ; When fpext is free, we should look through it for optimizations | |
| ; even if it has multiple uses and produce an 'fadd' here. | |
| ; Y - (fpext(-X)) --> Y + fpext(X) | |
| define double @neg_ext_op1_extra_use(float %x, double %y) nounwind { | |
| ; CHECK-LABEL: neg_ext_op1_extra_use: | |
| ; CHECK: # %bb.0: | |
| ; CHECK-NEXT: xsadddp 0, 2, 1 | |
| ; CHECK-NEXT: fneg 1, 1 | |
| ; CHECK-NEXT: xsdivdp 1, 1, 0 | |
| ; CHECK-NEXT: blr | |
| %t1 = fsub float -0.0, %x | |
| %t2 = fpext float %t1 to double | |
| %t3 = fsub double %y, %t2 | |
| %t4 = fdiv double %t2, %t3 | |
| ret double %t4 | |
| } | |