| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 -mattr=+vsx -disable-ppc-vsx-fma-mutation=false | FileCheck %s |
| |
| declare double @llvm.sqrt.f64(double) |
| |
| ; Test several VSX FMA mutation opportunities. |
| |
| ; This is reasonable transformation since it eliminates extra register copy. |
| define double @foo3_fmf(double %a) nounwind { |
| ; CHECK-LABEL: foo3_fmf: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: xstsqrtdp 0, 1 |
| ; CHECK-NEXT: bc 12, 2, .LBB0_2 |
| ; CHECK-NEXT: # %bb.1: |
| ; CHECK-NEXT: xsrsqrtedp 0, 1 |
| ; CHECK-NEXT: addis 3, 2, .LCPI0_0@toc@ha |
| ; CHECK-NEXT: lfs 3, .LCPI0_0@toc@l(3) |
| ; CHECK-NEXT: addis 3, 2, .LCPI0_1@toc@ha |
| ; CHECK-NEXT: lfs 4, .LCPI0_1@toc@l(3) |
| ; CHECK-NEXT: xsmuldp 2, 1, 0 |
| ; CHECK-NEXT: xsmaddmdp 2, 0, 3 |
| ; CHECK-NEXT: xsmuldp 0, 0, 4 |
| ; CHECK-NEXT: xsmuldp 0, 0, 2 |
| ; CHECK-NEXT: xsmuldp 1, 1, 0 |
| ; CHECK-NEXT: xsmaddadp 3, 1, 0 |
| ; CHECK-NEXT: xsmuldp 0, 1, 4 |
| ; CHECK-NEXT: xsmuldp 1, 0, 3 |
| ; CHECK-NEXT: blr |
| ; CHECK-NEXT: .LBB0_2: |
| ; CHECK-NEXT: xssqrtdp 1, 1 |
| ; CHECK-NEXT: blr |
| %r = call reassoc afn ninf double @llvm.sqrt.f64(double %a) |
| ret double %r |
| } |
| |
| define double @foo3_safe(double %a) nounwind { |
| ; CHECK-LABEL: foo3_safe: |
| ; CHECK: # %bb.0: |
| ; CHECK-NEXT: xssqrtdp 1, 1 |
| ; CHECK-NEXT: blr |
| %r = call double @llvm.sqrt.f64(double %a) |
| ret double %r |
| } |
| |
