mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 03:02:36 +01:00
3f23d4b8c3
tryLatency compares two sched candidates. For the top zone it prefers the one with lesser depth, but only if that depth is greater than the total latency of the instructions we've already scheduled -- otherwise its latency would be hidden and there would be no stall. Unfortunately it only tests the depth of one of the candidates. This can lead to situations where the TopDepthReduce heuristic does not kick in, but a lower priority heuristic chooses the other candidate, whose depth *is* greater than the already scheduled latency, which causes a stall. The fix is to apply the heuristic if the depth of *either* candidate is greater than the already scheduled latency. All this also applies to the BotHeightReduce heuristic in the bottom zone. Differential Revision: https://reviews.llvm.org/D72392
162 lines
7.4 KiB
LLVM
162 lines
7.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
|
; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr9 < %s | FileCheck -check-prefix=CHECK-P9 %s
|
|
; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr9 -ppc-postra-bias-addi=false < %s |\
|
|
; RUN: FileCheck -check-prefix=CHECK-P9-NO-HEURISTIC %s
|
|
|
|
%_type_of_scalars = type <{ [16 x i8], double, [152 x i8] }>
|
|
%_elem_type_of_x = type <{ double }>
|
|
%_elem_type_of_a = type <{ double }>
|
|
|
|
@scalars = common local_unnamed_addr global %_type_of_scalars zeroinitializer, align 16
|
|
|
|
define void @test([0 x %_elem_type_of_x]* noalias %.x, [0 x %_elem_type_of_a]* %.a, i64* noalias %.n) {
|
|
; CHECK-P9-LABEL: test:
|
|
; CHECK-P9: # %bb.0: # %entry
|
|
; CHECK-P9-NEXT: ld 5, 0(5)
|
|
; CHECK-P9-NEXT: addis 6, 2, scalars@toc@ha
|
|
; CHECK-P9-NEXT: addi 6, 6, scalars@toc@l
|
|
; CHECK-P9-NEXT: addi 6, 6, 16
|
|
; CHECK-P9-NEXT: rldicr 5, 5, 0, 58
|
|
; CHECK-P9-NEXT: addi 5, 5, -32
|
|
; CHECK-P9-NEXT: lxvdsx 0, 0, 6
|
|
; CHECK-P9-NEXT: rldicl 5, 5, 59, 5
|
|
; CHECK-P9-NEXT: addi 5, 5, 1
|
|
; CHECK-P9-NEXT: mtctr 5
|
|
; CHECK-P9-NEXT: .p2align 4
|
|
; CHECK-P9-NEXT: .LBB0_1: # %vector.body
|
|
; CHECK-P9-NEXT: #
|
|
; CHECK-P9-NEXT: lxv 1, 16(4)
|
|
; CHECK-P9-NEXT: lxv 2, 0(4)
|
|
; CHECK-P9-NEXT: lxv 3, 48(4)
|
|
; CHECK-P9-NEXT: lxv 4, 32(4)
|
|
; CHECK-P9-NEXT: xvmuldp 2, 2, 0
|
|
; CHECK-P9-NEXT: lxv 5, 240(4)
|
|
; CHECK-P9-NEXT: lxv 6, 224(4)
|
|
; CHECK-P9-NEXT: xvmuldp 1, 1, 0
|
|
; CHECK-P9-NEXT: xvmuldp 4, 4, 0
|
|
; CHECK-P9-NEXT: xvmuldp 3, 3, 0
|
|
; CHECK-P9-NEXT: xvmuldp 5, 5, 0
|
|
; CHECK-P9-NEXT: addi 4, 4, 256
|
|
; CHECK-P9-NEXT: xvmuldp 6, 6, 0
|
|
; CHECK-P9-NEXT: stxv 1, 16(3)
|
|
; CHECK-P9-NEXT: stxv 2, 0(3)
|
|
; CHECK-P9-NEXT: stxv 3, 48(3)
|
|
; CHECK-P9-NEXT: stxv 4, 32(3)
|
|
; CHECK-P9-NEXT: stxv 5, 240(3)
|
|
; CHECK-P9-NEXT: stxv 6, 224(3)
|
|
; CHECK-P9-NEXT: addi 3, 3, 256
|
|
; CHECK-P9-NEXT: bdnz .LBB0_1
|
|
; CHECK-P9-NEXT: # %bb.2: # %return.block
|
|
; CHECK-P9-NEXT: blr
|
|
;
|
|
; CHECK-P9-NO-HEURISTIC-LABEL: test:
|
|
; CHECK-P9-NO-HEURISTIC: # %bb.0: # %entry
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: ld 5, 0(5)
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: addis 6, 2, scalars@toc@ha
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: addi 6, 6, scalars@toc@l
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: rldicr 5, 5, 0, 58
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: addi 6, 6, 16
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: addi 5, 5, -32
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: lxvdsx 0, 0, 6
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: rldicl 5, 5, 59, 5
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: addi 5, 5, 1
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: mtctr 5
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: .p2align 4
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: .LBB0_1: # %vector.body
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: #
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: lxv 1, 16(4)
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: lxv 2, 0(4)
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: lxv 3, 48(4)
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: lxv 4, 32(4)
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: xvmuldp 2, 2, 0
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: lxv 5, 240(4)
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: lxv 6, 224(4)
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: xvmuldp 1, 1, 0
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: xvmuldp 4, 4, 0
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: xvmuldp 3, 3, 0
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: xvmuldp 6, 6, 0
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: xvmuldp 5, 5, 0
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: addi 4, 4, 256
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: stxv 1, 16(3)
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: stxv 2, 0(3)
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: stxv 3, 48(3)
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: stxv 4, 32(3)
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: stxv 5, 240(3)
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: stxv 6, 224(3)
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: addi 3, 3, 256
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: bdnz .LBB0_1
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: # %bb.2: # %return.block
|
|
; CHECK-P9-NO-HEURISTIC-NEXT: blr
|
|
entry:
|
|
%x_rvo_based_addr_3 = getelementptr inbounds [0 x %_elem_type_of_x], [0 x %_elem_type_of_x]* %.x, i64 0, i64 -1
|
|
%a_rvo_based_addr_5 = getelementptr inbounds [0 x %_elem_type_of_a], [0 x %_elem_type_of_a]* %.a, i64 0, i64 -1
|
|
%_val_n_ = load i64, i64* %.n, align 8
|
|
%_val_c1_ = load double, double* getelementptr inbounds (%_type_of_scalars, %_type_of_scalars* @scalars, i64 0, i32 1), align 16
|
|
%n.vec = and i64 %_val_n_, -32
|
|
%broadcast.splatinsert26 = insertelement <4 x double> undef, double %_val_c1_, i32 0
|
|
%broadcast.splat27 = shufflevector <4 x double> %broadcast.splatinsert26, <4 x double> undef, <4 x i32> zeroinitializer
|
|
br label %vector.body
|
|
|
|
vector.body:
|
|
%index = phi i64 [ 0, %entry ], [ %index.next, %vector.body ]
|
|
%offset.idx = or i64 %index, 1
|
|
%0 = getelementptr %_elem_type_of_x, %_elem_type_of_x* %x_rvo_based_addr_3, i64 %offset.idx, i32 0
|
|
%1 = getelementptr %_elem_type_of_a, %_elem_type_of_a* %a_rvo_based_addr_5, i64 %offset.idx, i32 0
|
|
%2 = bitcast double* %1 to <4 x double>*
|
|
%wide.load = load <4 x double>, <4 x double>* %2, align 8
|
|
%3 = getelementptr double, double* %1, i64 4
|
|
%4 = bitcast double* %3 to <4 x double>*
|
|
%wide.load19 = load <4 x double>, <4 x double>* %4, align 8
|
|
%5 = getelementptr double, double* %1, i64 8
|
|
%6 = bitcast double* %5 to <4 x double>*
|
|
%wide.load20 = load <4 x double>, <4 x double>* %6, align 8
|
|
%7 = getelementptr double, double* %1, i64 12
|
|
%8 = bitcast double* %7 to <4 x double>*
|
|
%wide.load21 = load <4 x double>, <4 x double>* %8, align 8
|
|
%9 = getelementptr double, double* %1, i64 16
|
|
%10 = bitcast double* %9 to <4 x double>*
|
|
%wide.load22 = load <4 x double>, <4 x double>* %10, align 8
|
|
%11 = getelementptr double, double* %1, i64 20
|
|
%12 = bitcast double* %11 to <4 x double>*
|
|
%wide.load23 = load <4 x double>, <4 x double>* %12, align 8
|
|
%13 = getelementptr double, double* %1, i64 24
|
|
%14 = bitcast double* %13 to <4 x double>*
|
|
%wide.load24 = load <4 x double>, <4 x double>* %14, align 8
|
|
%15 = getelementptr double, double* %1, i64 28
|
|
%16 = bitcast double* %15 to <4 x double>*
|
|
%wide.load25 = load <4 x double>, <4 x double>* %16, align 8
|
|
%17 = fmul fast <4 x double> %wide.load, %broadcast.splat27
|
|
%18 = fmul fast <4 x double> %wide.load19, %broadcast.splat27
|
|
%19 = fmul fast <4 x double> %wide.load20, %broadcast.splat27
|
|
%20 = fmul fast <4 x double> %wide.load21, %broadcast.splat27
|
|
%21 = fmul fast <4 x double> %wide.load22, %broadcast.splat27
|
|
%22 = fmul fast <4 x double> %wide.load23, %broadcast.splat27
|
|
%23 = fmul fast <4 x double> %wide.load24, %broadcast.splat27
|
|
%24 = fmul fast <4 x double> %wide.load25, %broadcast.splat27
|
|
%25 = bitcast double* %0 to <4 x double>*
|
|
store <4 x double> %17, <4 x double>* %25, align 8
|
|
%26 = getelementptr double, double* %0, i64 4
|
|
%27 = bitcast double* %26 to <4 x double>*
|
|
store <4 x double> %18, <4 x double>* %27, align 8
|
|
%28 = getelementptr double, double* %0, i64 8
|
|
%29 = bitcast double* %28 to <4 x double>*
|
|
%30 = getelementptr double, double* %0, i64 12
|
|
%31 = bitcast double* %30 to <4 x double>*
|
|
%32 = getelementptr double, double* %0, i64 16
|
|
%33 = bitcast double* %32 to <4 x double>*
|
|
%34 = getelementptr double, double* %0, i64 20
|
|
%35 = bitcast double* %34 to <4 x double>*
|
|
%36 = getelementptr double, double* %0, i64 24
|
|
%37 = bitcast double* %36 to <4 x double>*
|
|
%38 = getelementptr double, double* %0, i64 28
|
|
%39 = bitcast double* %38 to <4 x double>*
|
|
store <4 x double> %24, <4 x double>* %39, align 8
|
|
%index.next = add i64 %index, 32
|
|
%cm = icmp eq i64 %index.next, %n.vec
|
|
br i1 %cm, label %return.block, label %vector.body
|
|
|
|
return.block:
|
|
ret void
|
|
}
|
|
|