eaf6746db0
Summary: This was found during review of https://reviews.llvm.org/D66050. In the simple test of fdiv, we miss to fold ``` fneg 2, 2 xsmaddasp 3, 2, 0 ``` to ``` xsnmsubasp 3, 2, 0 ``` We have the patterns for Double Precision and vectors, just missing Single Precision, the patch add that. Reviewers: #powerpc, hfinkel, nemanjai, steven.zhang Reviewed By: #powerpc, steven.zhang Subscribers: wuzish, hiraditya, kbarton, MaskRay, shchenz, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D67595 llvm-svn: 372985
16 lines
522 B
LLVM
16 lines
522 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr8 | FileCheck %s
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define dso_local float @foo(float %0, float %1) local_unnamed_addr {
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; CHECK-LABEL: foo:
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; CHECK: # %bb.0:
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; CHECK-NEXT: xsresp 3, 2
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; CHECK-NEXT: xsmulsp 0, 1, 3
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; CHECK-NEXT: xsnmsubasp 1, 2, 0
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; CHECK-NEXT: xsmaddasp 0, 3, 1
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; CHECK-NEXT: fmr 1, 0
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; CHECK-NEXT: blr
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%3 = fdiv fast float %0, %1
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ret float %3
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}
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