From: Eli Friedman <efriedma@quicinc.com>
Date: Wed, 10 Jun 2020 07:26:35 +0000 (-0700)
Subject: Revert "[SPARC] Lower fp16 ops to libcalls"
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a92dcffcd3894ceea45730fea7a38beba76a6958;p=platform%2Fupstream%2Fllvm.git

Revert "[SPARC] Lower fp16 ops to libcalls"

This reverts commit 28415e588f1c501967a9b596e6651787996f93ff.  It's
causing buildbot failures. (Probably just need to fix the triple for the
test, but I'll look more tomorrow.)
---

diff --git a/llvm/lib/Target/Sparc/SparcISelLowering.cpp b/llvm/lib/Target/Sparc/SparcISelLowering.cpp
index c9743c5..f598d423 100644
--- a/llvm/lib/Target/Sparc/SparcISelLowering.cpp
+++ b/llvm/lib/Target/Sparc/SparcISelLowering.cpp
@@ -1465,7 +1465,6 @@ SparcTargetLowering::SparcTargetLowering(const TargetMachine &TM,
 
   // Turn FP extload into load/fpextend
   for (MVT VT : MVT::fp_valuetypes()) {
-    setLoadExtAction(ISD::EXTLOAD, VT, MVT::f16, Expand);
     setLoadExtAction(ISD::EXTLOAD, VT, MVT::f32, Expand);
     setLoadExtAction(ISD::EXTLOAD, VT, MVT::f64, Expand);
   }
@@ -1475,8 +1474,6 @@ SparcTargetLowering::SparcTargetLowering(const TargetMachine &TM,
     setLoadExtAction(ISD::SEXTLOAD, VT, MVT::i1, Promote);
 
   // Turn FP truncstore into trunc + store.
-  setTruncStoreAction(MVT::f32, MVT::f16, Expand);
-  setTruncStoreAction(MVT::f64, MVT::f16, Expand);
   setTruncStoreAction(MVT::f64, MVT::f32, Expand);
   setTruncStoreAction(MVT::f128, MVT::f32, Expand);
   setTruncStoreAction(MVT::f128, MVT::f64, Expand);
@@ -1518,12 +1515,6 @@ SparcTargetLowering::SparcTargetLowering(const TargetMachine &TM,
   setOperationAction(ISD::FP_TO_UINT, MVT::i64, Custom);
   setOperationAction(ISD::UINT_TO_FP, MVT::i64, Custom);
 
-  // Lower f16 conversion operations into library calls
-  setOperationAction(ISD::FP16_TO_FP, MVT::f32, Expand);
-  setOperationAction(ISD::FP_TO_FP16, MVT::f32, Expand);
-  setOperationAction(ISD::FP16_TO_FP, MVT::f64, Expand);
-  setOperationAction(ISD::FP_TO_FP16, MVT::f64, Expand);
-
   setOperationAction(ISD::BITCAST, MVT::f32, Expand);
   setOperationAction(ISD::BITCAST, MVT::i32, Expand);
 
diff --git a/llvm/test/CodeGen/SPARC/fp16-promote.ll b/llvm/test/CodeGen/SPARC/fp16-promote.ll
deleted file mode 100644
index 8a60dfb..0000000
--- a/llvm/test/CodeGen/SPARC/fp16-promote.ll
+++ /dev/null
@@ -1,376 +0,0 @@
-; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
-; RUN: llc -march=sparc < %s | FileCheck %s -check-prefix=V8 -check-prefix=V8-BE
-; RUN: llc -march=sparcel < %s | FileCheck %s -check-prefix=V8 -check-prefix=V8-EL
-; RUN: llc -march=sparc -O0 < %s | FileCheck %s -check-prefix=V8-UNOPT
-; RUN: llc -march=sparc -mattr=v9 < %s | FileCheck %s -check-prefix=V9
-; RUN: llc -mtriple=sparc64-unknown-linux < %s | FileCheck %s -check-prefix=SPARC64
-
-define void @test_load_store(half* %p, half* %q) nounwind {
-; V8-LABEL: test_load_store:
-; V8:       ! %bb.0:
-; V8-NEXT:    lduh [%o0], %o0
-; V8-NEXT:    retl
-; V8-NEXT:    sth %o0, [%o1]
-;
-; V8-UNOPT-LABEL: test_load_store:
-; V8-UNOPT:       ! %bb.0:
-; V8-UNOPT-NEXT:    lduh [%o0], %o0
-; V8-UNOPT-NEXT:    retl
-; V8-UNOPT-NEXT:    sth %o0, [%o1]
-;
-; V9-LABEL: test_load_store:
-; V9:       ! %bb.0:
-; V9-NEXT:    lduh [%o0], %o0
-; V9-NEXT:    retl
-; V9-NEXT:    sth %o0, [%o1]
-;
-; SPARC64-LABEL: test_load_store:
-; SPARC64:       ! %bb.0:
-; SPARC64-NEXT:    lduh [%o0], %o0
-; SPARC64-NEXT:    retl
-; SPARC64-NEXT:    sth %o0, [%o1]
-  %a = load half, half* %p
-  store half %a, half* %q
-  ret void
-}
-
-define float @test_fpextend_float(half* %p) nounwind {
-; V8-LABEL: test_fpextend_float:
-; V8:       ! %bb.0:
-; V8-NEXT:    save %sp, -96, %sp
-; V8-NEXT:    call __gnu_h2f_ieee
-; V8-NEXT:    lduh [%i0], %o0
-; V8-NEXT:    ret
-; V8-NEXT:    restore
-;
-; V8-UNOPT-LABEL: test_fpextend_float:
-; V8-UNOPT:       ! %bb.0:
-; V8-UNOPT-NEXT:    save %sp, -96, %sp
-; V8-UNOPT-NEXT:    call __gnu_h2f_ieee
-; V8-UNOPT-NEXT:    lduh [%i0], %o0
-; V8-UNOPT-NEXT:    ret
-; V8-UNOPT-NEXT:    restore
-;
-; V9-LABEL: test_fpextend_float:
-; V9:       ! %bb.0:
-; V9-NEXT:    save %sp, -96, %sp
-; V9-NEXT:    call __gnu_h2f_ieee
-; V9-NEXT:    lduh [%i0], %o0
-; V9-NEXT:    ret
-; V9-NEXT:    restore
-;
-; SPARC64-LABEL: test_fpextend_float:
-; SPARC64:       ! %bb.0:
-; SPARC64-NEXT:    save %sp, -176, %sp
-; SPARC64-NEXT:    call __gnu_h2f_ieee
-; SPARC64-NEXT:    lduh [%i0], %o0
-; SPARC64-NEXT:    ret
-; SPARC64-NEXT:    restore
-  %a = load half, half* %p
-  %r = fpext half %a to float
-  ret float %r
-}
-
-define double @test_fpextend_double(half* %p) nounwind {
-; V8-LABEL: test_fpextend_double:
-; V8:       ! %bb.0:
-; V8-NEXT:    save %sp, -96, %sp
-; V8-NEXT:    call __gnu_h2f_ieee
-; V8-NEXT:    lduh [%i0], %o0
-; V8-NEXT:    fstod %f0, %f0
-; V8-NEXT:    ret
-; V8-NEXT:    restore
-;
-; V8-UNOPT-LABEL: test_fpextend_double:
-; V8-UNOPT:       ! %bb.0:
-; V8-UNOPT-NEXT:    save %sp, -96, %sp
-; V8-UNOPT-NEXT:    call __gnu_h2f_ieee
-; V8-UNOPT-NEXT:    lduh [%i0], %o0
-; V8-UNOPT-NEXT:    fstod %f0, %f0
-; V8-UNOPT-NEXT:    ret
-; V8-UNOPT-NEXT:    restore
-;
-; V9-LABEL: test_fpextend_double:
-; V9:       ! %bb.0:
-; V9-NEXT:    save %sp, -96, %sp
-; V9-NEXT:    call __gnu_h2f_ieee
-; V9-NEXT:    lduh [%i0], %o0
-; V9-NEXT:    fstod %f0, %f0
-; V9-NEXT:    ret
-; V9-NEXT:    restore
-;
-; SPARC64-LABEL: test_fpextend_double:
-; SPARC64:       ! %bb.0:
-; SPARC64-NEXT:    save %sp, -176, %sp
-; SPARC64-NEXT:    call __gnu_h2f_ieee
-; SPARC64-NEXT:    lduh [%i0], %o0
-; SPARC64-NEXT:    fstod %f0, %f0
-; SPARC64-NEXT:    ret
-; SPARC64-NEXT:    restore
-  %a = load half, half* %p
-  %r = fpext half %a to double
-  ret double %r
-}
-
-define void @test_fptrunc_float(float %f, half* %p) nounwind {
-; V8-LABEL: test_fptrunc_float:
-; V8:       ! %bb.0:
-; V8-NEXT:    save %sp, -96, %sp
-; V8-NEXT:    call __gnu_f2h_ieee
-; V8-NEXT:    mov %i0, %o0
-; V8-NEXT:    sth %o0, [%i1]
-; V8-NEXT:    ret
-; V8-NEXT:    restore
-;
-; V8-UNOPT-LABEL: test_fptrunc_float:
-; V8-UNOPT:       ! %bb.0:
-; V8-UNOPT-NEXT:    save %sp, -104, %sp
-; V8-UNOPT-NEXT:    st %i0, [%fp+-4]
-; V8-UNOPT-NEXT:    ld [%fp+-4], %f0
-; V8-UNOPT-NEXT:    mov %i0, %o0
-; V8-UNOPT-NEXT:    st %i1, [%fp+-8] ! 4-byte Folded Spill
-; V8-UNOPT-NEXT:    call __gnu_f2h_ieee
-; V8-UNOPT-NEXT:    st %f0, [%fp+-12]
-; V8-UNOPT-NEXT:    ld [%fp+-8], %i0 ! 4-byte Folded Reload
-; V8-UNOPT-NEXT:    sth %o0, [%i0]
-; V8-UNOPT-NEXT:    ret
-; V8-UNOPT-NEXT:    restore
-;
-; V9-LABEL: test_fptrunc_float:
-; V9:       ! %bb.0:
-; V9-NEXT:    save %sp, -96, %sp
-; V9-NEXT:    call __gnu_f2h_ieee
-; V9-NEXT:    mov %i0, %o0
-; V9-NEXT:    sth %o0, [%i1]
-; V9-NEXT:    ret
-; V9-NEXT:    restore
-;
-; SPARC64-LABEL: test_fptrunc_float:
-; SPARC64:       ! %bb.0:
-; SPARC64-NEXT:    save %sp, -176, %sp
-; SPARC64-NEXT:    call __gnu_f2h_ieee
-; SPARC64-NEXT:    nop
-; SPARC64-NEXT:    sth %o0, [%i1]
-; SPARC64-NEXT:    ret
-; SPARC64-NEXT:    restore
-  %a = fptrunc float %f to half
-  store half %a, half* %p
-  ret void
-}
-
-define void @test_fptrunc_double(double %d, half* %p) nounwind {
-; V8-LABEL: test_fptrunc_double:
-; V8:       ! %bb.0:
-; V8-NEXT:    save %sp, -112, %sp
-; V8-NEXT:    ! kill: def $i1 killed $i1 killed $i0_i1 def $i0_i1
-; V8-NEXT:    ! kill: def $i0 killed $i0 killed $i0_i1 def $i0_i1
-; V8-NEXT:    std %i0, [%fp+-8]
-; V8-NEXT:    ldd [%fp+-8], %f0
-; V8-NEXT:    std %f0, [%fp+-16]
-; V8-NEXT:    call __truncdfhf2
-; V8-NEXT:    ldd [%fp+-16], %o0
-; V8-NEXT:    sth %o0, [%i2]
-; V8-NEXT:    ret
-; V8-NEXT:    restore
-;
-; V8-UNOPT-LABEL: test_fptrunc_double:
-; V8-UNOPT:       ! %bb.0:
-; V8-UNOPT-NEXT:    save %sp, -112, %sp
-; V8-UNOPT-NEXT:    ! implicit-def: $i4_i5
-; V8-UNOPT-NEXT:    mov %i0, %i4
-; V8-UNOPT-NEXT:    mov %i1, %i5
-; V8-UNOPT-NEXT:    std %i4, [%fp+-8]
-; V8-UNOPT-NEXT:    ldd [%fp+-8], %f0
-; V8-UNOPT-NEXT:    std %f0, [%fp+-16]
-; V8-UNOPT-NEXT:    ldd [%fp+-16], %i0
-; V8-UNOPT-NEXT:    mov %i0, %i3
-; V8-UNOPT-NEXT:    ! kill: def $i1 killed $i1 killed $i0_i1
-; V8-UNOPT-NEXT:    mov %i3, %o0
-; V8-UNOPT-NEXT:    mov %i1, %o1
-; V8-UNOPT-NEXT:    call __truncdfhf2
-; V8-UNOPT-NEXT:    st %i2, [%fp+-20]
-; V8-UNOPT-NEXT:    ld [%fp+-20], %i0 ! 4-byte Folded Reload
-; V8-UNOPT-NEXT:    sth %o0, [%i0]
-; V8-UNOPT-NEXT:    ret
-; V8-UNOPT-NEXT:    restore
-;
-; V9-LABEL: test_fptrunc_double:
-; V9:       ! %bb.0:
-; V9-NEXT:    save %sp, -112, %sp
-; V9-NEXT:    ! kill: def $i1 killed $i1 killed $i0_i1 def $i0_i1
-; V9-NEXT:    ! kill: def $i0 killed $i0 killed $i0_i1 def $i0_i1
-; V9-NEXT:    std %i0, [%fp+-8]
-; V9-NEXT:    ldd [%fp+-8], %f0
-; V9-NEXT:    std %f0, [%fp+-16]
-; V9-NEXT:    call __truncdfhf2
-; V9-NEXT:    ldd [%fp+-16], %o0
-; V9-NEXT:    sth %o0, [%i2]
-; V9-NEXT:    ret
-; V9-NEXT:    restore
-;
-; SPARC64-LABEL: test_fptrunc_double:
-; SPARC64:       ! %bb.0:
-; SPARC64-NEXT:    save %sp, -176, %sp
-; SPARC64-NEXT:    call __truncdfhf2
-; SPARC64-NEXT:    nop
-; SPARC64-NEXT:    sth %o0, [%i1]
-; SPARC64-NEXT:    ret
-; SPARC64-NEXT:    restore
-  %a = fptrunc double %d to half
-  store half %a, half* %p
-  ret void
-}
-
-define void @test_fadd(half* %p, half* %q) nounwind {
-; V8-LABEL: test_fadd:
-; V8:       ! %bb.0:
-; V8-NEXT:    save %sp, -104, %sp
-; V8-NEXT:    call __gnu_h2f_ieee
-; V8-NEXT:    lduh [%i0], %o0
-; V8-NEXT:    st %f0, [%fp+-8] ! 4-byte Folded Spill
-; V8-NEXT:    call __gnu_h2f_ieee
-; V8-NEXT:    lduh [%i1], %o0
-; V8-NEXT:    ld [%fp+-8], %f1 ! 4-byte Folded Reload
-; V8-NEXT:    fadds %f1, %f0, %f0
-; V8-NEXT:    st %f0, [%fp+-4]
-; V8-NEXT:    call __gnu_f2h_ieee
-; V8-NEXT:    ld [%fp+-4], %o0
-; V8-NEXT:    sth %o0, [%i0]
-; V8-NEXT:    ret
-; V8-NEXT:    restore
-;
-; V8-UNOPT-LABEL: test_fadd:
-; V8-UNOPT:       ! %bb.0:
-; V8-UNOPT-NEXT:    save %sp, -112, %sp
-; V8-UNOPT-NEXT:    lduh [%i0], %o0
-; V8-UNOPT-NEXT:    st %i1, [%fp+-8] ! 4-byte Folded Spill
-; V8-UNOPT-NEXT:    call __gnu_h2f_ieee
-; V8-UNOPT-NEXT:    st %i0, [%fp+-12]
-; V8-UNOPT-NEXT:    ld [%fp+-8], %i0 ! 4-byte Folded Reload
-; V8-UNOPT-NEXT:    lduh [%i0], %o0
-; V8-UNOPT-NEXT:    call __gnu_h2f_ieee
-; V8-UNOPT-NEXT:    st %f0, [%fp+-16]
-; V8-UNOPT-NEXT:    ld [%fp+-16], %f1 ! 4-byte Folded Reload
-; V8-UNOPT-NEXT:    fadds %f1, %f0, %f0
-; V8-UNOPT-NEXT:    st %f0, [%fp+-4]
-; V8-UNOPT-NEXT:    call __gnu_f2h_ieee
-; V8-UNOPT-NEXT:    ld [%fp+-4], %o0
-; V8-UNOPT-NEXT:    ld [%fp+-12], %i0 ! 4-byte Folded Reload
-; V8-UNOPT-NEXT:    sth %o0, [%i0]
-; V8-UNOPT-NEXT:    ret
-; V8-UNOPT-NEXT:    restore
-;
-; V9-LABEL: test_fadd:
-; V9:       ! %bb.0:
-; V9-NEXT:    save %sp, -104, %sp
-; V9-NEXT:    call __gnu_h2f_ieee
-; V9-NEXT:    lduh [%i0], %o0
-; V9-NEXT:    st %f0, [%fp+-8] ! 4-byte Folded Spill
-; V9-NEXT:    call __gnu_h2f_ieee
-; V9-NEXT:    lduh [%i1], %o0
-; V9-NEXT:    ld [%fp+-8], %f1 ! 4-byte Folded Reload
-; V9-NEXT:    fadds %f1, %f0, %f0
-; V9-NEXT:    st %f0, [%fp+-4]
-; V9-NEXT:    call __gnu_f2h_ieee
-; V9-NEXT:    ld [%fp+-4], %o0
-; V9-NEXT:    sth %o0, [%i0]
-; V9-NEXT:    ret
-; V9-NEXT:    restore
-;
-; SPARC64-LABEL: test_fadd:
-; SPARC64:       ! %bb.0:
-; SPARC64-NEXT:    save %sp, -192, %sp
-; SPARC64-NEXT:    call __gnu_h2f_ieee
-; SPARC64-NEXT:    lduh [%i0], %o0
-; SPARC64-NEXT:    st %f0, [%fp+2043] ! 4-byte Folded Spill
-; SPARC64-NEXT:    call __gnu_h2f_ieee
-; SPARC64-NEXT:    lduh [%i1], %o0
-; SPARC64-NEXT:    ld [%fp+2043], %f1 ! 4-byte Folded Reload
-; SPARC64-NEXT:    call __gnu_f2h_ieee
-; SPARC64-NEXT:    fadds %f1, %f0, %f1
-; SPARC64-NEXT:    sth %o0, [%i0]
-; SPARC64-NEXT:    ret
-; SPARC64-NEXT:    restore
-  %a = load half, half* %p
-  %b = load half, half* %q
-  %r = fadd half %a, %b
-  store half %r, half* %p
-  ret void
-}
-
-define void @test_fmul(half* %p, half* %q) nounwind {
-; V8-LABEL: test_fmul:
-; V8:       ! %bb.0:
-; V8-NEXT:    save %sp, -104, %sp
-; V8-NEXT:    call __gnu_h2f_ieee
-; V8-NEXT:    lduh [%i0], %o0
-; V8-NEXT:    st %f0, [%fp+-8] ! 4-byte Folded Spill
-; V8-NEXT:    call __gnu_h2f_ieee
-; V8-NEXT:    lduh [%i1], %o0
-; V8-NEXT:    ld [%fp+-8], %f1 ! 4-byte Folded Reload
-; V8-NEXT:    fmuls %f1, %f0, %f0
-; V8-NEXT:    st %f0, [%fp+-4]
-; V8-NEXT:    call __gnu_f2h_ieee
-; V8-NEXT:    ld [%fp+-4], %o0
-; V8-NEXT:    sth %o0, [%i0]
-; V8-NEXT:    ret
-; V8-NEXT:    restore
-;
-; V8-UNOPT-LABEL: test_fmul:
-; V8-UNOPT:       ! %bb.0:
-; V8-UNOPT-NEXT:    save %sp, -112, %sp
-; V8-UNOPT-NEXT:    lduh [%i0], %o0
-; V8-UNOPT-NEXT:    st %i1, [%fp+-8] ! 4-byte Folded Spill
-; V8-UNOPT-NEXT:    call __gnu_h2f_ieee
-; V8-UNOPT-NEXT:    st %i0, [%fp+-12]
-; V8-UNOPT-NEXT:    ld [%fp+-8], %i0 ! 4-byte Folded Reload
-; V8-UNOPT-NEXT:    lduh [%i0], %o0
-; V8-UNOPT-NEXT:    call __gnu_h2f_ieee
-; V8-UNOPT-NEXT:    st %f0, [%fp+-16]
-; V8-UNOPT-NEXT:    ld [%fp+-16], %f1 ! 4-byte Folded Reload
-; V8-UNOPT-NEXT:    fmuls %f1, %f0, %f0
-; V8-UNOPT-NEXT:    st %f0, [%fp+-4]
-; V8-UNOPT-NEXT:    call __gnu_f2h_ieee
-; V8-UNOPT-NEXT:    ld [%fp+-4], %o0
-; V8-UNOPT-NEXT:    ld [%fp+-12], %i0 ! 4-byte Folded Reload
-; V8-UNOPT-NEXT:    sth %o0, [%i0]
-; V8-UNOPT-NEXT:    ret
-; V8-UNOPT-NEXT:    restore
-;
-; V9-LABEL: test_fmul:
-; V9:       ! %bb.0:
-; V9-NEXT:    save %sp, -104, %sp
-; V9-NEXT:    call __gnu_h2f_ieee
-; V9-NEXT:    lduh [%i0], %o0
-; V9-NEXT:    st %f0, [%fp+-8] ! 4-byte Folded Spill
-; V9-NEXT:    call __gnu_h2f_ieee
-; V9-NEXT:    lduh [%i1], %o0
-; V9-NEXT:    ld [%fp+-8], %f1 ! 4-byte Folded Reload
-; V9-NEXT:    fmuls %f1, %f0, %f0
-; V9-NEXT:    st %f0, [%fp+-4]
-; V9-NEXT:    call __gnu_f2h_ieee
-; V9-NEXT:    ld [%fp+-4], %o0
-; V9-NEXT:    sth %o0, [%i0]
-; V9-NEXT:    ret
-; V9-NEXT:    restore
-;
-; SPARC64-LABEL: test_fmul:
-; SPARC64:       ! %bb.0:
-; SPARC64-NEXT:    save %sp, -192, %sp
-; SPARC64-NEXT:    call __gnu_h2f_ieee
-; SPARC64-NEXT:    lduh [%i0], %o0
-; SPARC64-NEXT:    st %f0, [%fp+2043] ! 4-byte Folded Spill
-; SPARC64-NEXT:    call __gnu_h2f_ieee
-; SPARC64-NEXT:    lduh [%i1], %o0
-; SPARC64-NEXT:    ld [%fp+2043], %f1 ! 4-byte Folded Reload
-; SPARC64-NEXT:    call __gnu_f2h_ieee
-; SPARC64-NEXT:    fmuls %f1, %f0, %f1
-; SPARC64-NEXT:    sth %o0, [%i0]
-; SPARC64-NEXT:    ret
-; SPARC64-NEXT:    restore
-  %a = load half, half* %p
-  %b = load half, half* %q
-  %r = fmul half %a, %b
-  store half %r, half* %p
-  ret void
-}