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[Hexagon] Add NewValueJump support for C4_cmpneq, C4_cmplte, C4_cmplteu

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llvm-svn: 255027
This commit is contained in:
Ron Lieberman 2015-12-08 16:28:32 +00:00
parent 02e9e50bfb
commit f0e82b2c63
2 changed files with 107 additions and 0 deletions
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18
lib/Target/Hexagon/HexagonNewValueJump.cpp
View File

@ -342,6 +342,24 @@ static unsigned getNewValueJumpOpcode(MachineInstr *MI, int reg,
return taken ? Hexagon::J4_cmpgtui_t_jumpnv_t
: Hexagon::J4_cmpgtui_t_jumpnv_nt;
case Hexagon::C4_cmpneq:
return taken ? Hexagon::J4_cmpeq_f_jumpnv_t
: Hexagon::J4_cmpeq_f_jumpnv_nt;
case Hexagon::C4_cmplte:
if (secondRegNewified)
return taken ? Hexagon::J4_cmplt_f_jumpnv_t
: Hexagon::J4_cmplt_f_jumpnv_nt;
return taken ? Hexagon::J4_cmpgt_f_jumpnv_t
: Hexagon::J4_cmpgt_f_jumpnv_nt;
case Hexagon::C4_cmplteu:
if (secondRegNewified)
return taken ? Hexagon::J4_cmpltu_f_jumpnv_t
: Hexagon::J4_cmpltu_f_jumpnv_nt;
return taken ? Hexagon::J4_cmpgtu_f_jumpnv_t
: Hexagon::J4_cmpgtu_f_jumpnv_nt;
default:
llvm_unreachable("Could not find matching New Value Jump instruction.");
}

89
test/CodeGen/Hexagon/NVJumpCmp.ll Normal file
View File

@ -0,0 +1,89 @@
; RUN: llc -march=hexagon -O2 -mcpu=hexagonv60 < %s | FileCheck %s
; Look for an instruction, we really just do not want to see an abort.
; CHECK: trace_event
; REQUIRES: asserts
target datalayout = "e-p:32:32:32-i64:64:64-i32:32:32-i16:16:16-i1:32:32-f64:64:64-f32:32:32-v64:64:64-v32:32:32-a:0-n16:32"
target triple = "hexagon-unknown--elf"
; Function Attrs: nounwind
define void @_ZN6Halide7Runtime8Internal13default_traceEPvPK18halide_trace_event() #0 {
entry:
br i1 undef, label %if.then, label %if.else
if.then: ; preds = %entry
br label %while.cond
while.cond: ; preds = %while.cond, %if.then
br i1 undef, label %while.cond, label %while.end
while.end: ; preds = %while.cond
%add = add i32 undef, 48
br i1 undef, label %if.end, label %if.then17
if.then17: ; preds = %while.end
unreachable
if.end: ; preds = %while.end
%arrayidx21 = getelementptr inbounds [4096 x i8], [4096 x i8]* undef, i32 0, i32 8
store i8 undef, i8* %arrayidx21, align 4, !tbaa !1
br i1 undef, label %for.body42.preheader6, label %min.iters.checked
for.body42.preheader6: ; preds = %vector.body.preheader, %min.iters.checked, %if.end
unreachable
min.iters.checked: ; preds = %if.end
br i1 undef, label %for.body42.preheader6, label %vector.body.preheader
vector.body.preheader: ; preds = %min.iters.checked
br i1 undef, label %for.cond48.preheader, label %for.body42.preheader6
for.cond48.preheader: ; preds = %vector.body.preheader
br i1 undef, label %while.cond.i, label %for.body61.lr.ph
for.body61.lr.ph: ; preds = %for.cond48.preheader
br i1 undef, label %for.body61, label %min.iters.checked595
min.iters.checked595: ; preds = %for.body61.lr.ph
br i1 undef, label %for.body61, label %vector.memcheck608
vector.memcheck608: ; preds = %min.iters.checked595
%scevgep600 = getelementptr [4096 x i8], [4096 x i8]* undef, i32 0, i32 %add
%bound0604 = icmp ule i8* %scevgep600, undef
%memcheck.conflict607 = and i1 undef, %bound0604
br i1 %memcheck.conflict607, label %for.body61, label %vector.body590
vector.body590: ; preds = %vector.body590, %vector.memcheck608
br i1 undef, label %middle.block591, label %vector.body590, !llvm.loop !4
middle.block591: ; preds = %vector.body590
%cmp.n613 = icmp eq i32 undef, 0
br i1 %cmp.n613, label %while.cond.i, label %for.body61
while.cond.i: ; preds = %for.body61, %while.cond.i, %middle.block591, %for.cond48.preheader
br i1 undef, label %_ZN6Halide7Runtime8Internal14ScopedSpinLockC2EPVi.exit, label %while.cond.i
_ZN6Halide7Runtime8Internal14ScopedSpinLockC2EPVi.exit: ; preds = %while.cond.i
unreachable
for.body61: ; preds = %for.body61, %middle.block591, %vector.memcheck608, %min.iters.checked595, %for.body61.lr.ph
%cmp59 = icmp ult i32 undef, undef
br i1 %cmp59, label %for.body61, label %while.cond.i, !llvm.loop !7
if.else: ; preds = %entry
unreachable
}
attributes #0 = { nounwind "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
!llvm.module.flags = !{!0}
!0 = !{i32 2, !"halide_mattrs", !"+hvx"}
!1 = !{!2, !2, i64 0}
!2 = !{!"omnipotent char", !3, i64 0}
!3 = !{!"Simple C/C++ TBAA"}
!4 = distinct !{!4, !5, !6}
!5 = !{!"llvm.loop.vectorize.width", i32 1}
!6 = !{!"llvm.loop.interleave.count", i32 1}
!7 = distinct !{!7, !5, !6}