67a3d1e275
This patch is in a series of patches to provide builtins for compatibility with the XL compiler. This patch implements the software divide builtin as wrappers for a floating point divide. XL provided these builtins because it didn't produce software estimates by default at `-Ofast`. When compiled with `-Ofast` these builtins will produce the software estimate for divide. Reviewed By: #powerpc, nemanjai Differential Revision: https://reviews.llvm.org/D106959
39 lines
1.2 KiB
LLVM
39 lines
1.2 KiB
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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; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc64-ibm-aix-xcoff -mcpu=pwr8 -vec-extabi | FileCheck %s
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define dso_local float @foo_nosw(float %0, float %1) local_unnamed_addr {
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; CHECK-LABEL: foo_nosw:
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; CHECK: # %bb.0:
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; CHECK-NEXT: xsdivsp 1, 1, 2
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; CHECK-NEXT: blr
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%3 = fdiv contract reassoc arcp nsz float %0, %1
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ret float %3
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}
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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 contract reassoc arcp nsz ninf float %0, %1
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ret float %3
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}
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define dso_local float @fdiv_fast(float %0, float %1) local_unnamed_addr {
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; CHECK-LABEL: fdiv_fast:
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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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