mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-24 13:33:37 +02:00
9449a00cc1
Summary: The motivation is the same as in D22141: In order to add the hotness attribute to optimization remarks we need BFI to be available in all passes that emit optimization remarks. BFI depends on BPI so unless we make this lazy as well we would still compute BPI unconditionally. The solution is to use the new LazyBPI pass in LazyBFI and only compute BPI when computation of BFI is requested by the client. I extended the laziness test using a LoopDistribute test to also cover BPI. Reviewers: hfinkel, davidxl Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D22835 llvm-svn: 277083
89 lines
3.7 KiB
LLVM
89 lines
3.7 KiB
LLVM
; Check that BFI is not computed when -pass-remarks-with-hotness is off
|
|
|
|
; RUN: opt -loop-distribute -S -pass-remarks-missed=loop-distribute \
|
|
; RUN: -debug-only=block-freq,branch-prob -pass-remarks-with-hotness \
|
|
; RUN: < %s 2>&1 | FileCheck %s --check-prefix=HOTNESS
|
|
; RUN: opt -loop-distribute -S -pass-remarks-missed=loop-distribute \
|
|
; RUN: -debug-only=block-freq,branch-prob \
|
|
; RUN: < %s 2>&1 | FileCheck %s --check-prefix=NO_HOTNESS
|
|
|
|
; RUN: opt -passes='require<aa>,loop-distribute' -S -pass-remarks-missed=loop-distribute \
|
|
; RUN: -debug-only=block-freq,branch-prob -pass-remarks-with-hotness \
|
|
; RUN: < %s 2>&1 | FileCheck %s --check-prefix=HOTNESS
|
|
; RUN: opt -passes='require<aa>,loop-distribute' -S -pass-remarks-missed=loop-distribute \
|
|
; RUN: -debug-only=block-freq,branch-prob \
|
|
; RUN: < %s 2>&1 | FileCheck %s --check-prefix=NO_HOTNESS
|
|
|
|
; REQUIRES: asserts
|
|
|
|
; HOTNESS: Branch Probability Info : forced
|
|
; HOTNESS: block-frequency: forced
|
|
; NO_HOTNESS-NOT: Branch Probability Info : forced
|
|
; NO_HOTNESS-NOT: block-frequency: forced
|
|
|
|
; This is the input program:
|
|
;
|
|
; 1 void forced (char *A, char *B, char *C, int N) {
|
|
; 2 #pragma clang loop distribute(enable)
|
|
; 3 for(int i = 0; i < N; i++) {
|
|
; 4 A[i] = B[i] * C[i];
|
|
; 5 }
|
|
; 6 }
|
|
|
|
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-apple-macosx10.11.0"
|
|
|
|
|
|
define void @forced(i8* %A, i8* %B, i8* %C, i32 %N) !dbg !7 !prof !22 {
|
|
entry:
|
|
%cmp12 = icmp sgt i32 %N, 0, !dbg !9
|
|
br i1 %cmp12, label %ph, label %for.cond.cleanup, !dbg !10, !prof !23
|
|
|
|
ph:
|
|
br label %for.body
|
|
|
|
for.body:
|
|
%indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %ph ]
|
|
%arrayidx = getelementptr inbounds i8, i8* %B, i64 %indvars.iv, !dbg !12
|
|
%0 = load i8, i8* %arrayidx, align 1, !dbg !12, !tbaa !13
|
|
%arrayidx2 = getelementptr inbounds i8, i8* %C, i64 %indvars.iv, !dbg !16
|
|
%1 = load i8, i8* %arrayidx2, align 1, !dbg !16, !tbaa !13
|
|
%mul = mul i8 %1, %0, !dbg !17
|
|
%arrayidx6 = getelementptr inbounds i8, i8* %A, i64 %indvars.iv, !dbg !18
|
|
store i8 %mul, i8* %arrayidx6, align 1, !dbg !19, !tbaa !13
|
|
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !10
|
|
%lftr.wideiv = trunc i64 %indvars.iv.next to i32, !dbg !10
|
|
%exitcond = icmp eq i32 %lftr.wideiv, %N, !dbg !10
|
|
br i1 %exitcond, label %for.cond.cleanup, label %for.body, !dbg !10, !llvm.loop !20, !prof !24
|
|
|
|
for.cond.cleanup:
|
|
ret void, !dbg !11
|
|
}
|
|
|
|
!llvm.dbg.cu = !{!0}
|
|
!llvm.module.flags = !{!3, !4}
|
|
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.9.0 (trunk 267633) (llvm/trunk 267675)", isOptimized: true, runtimeVersion: 0, emissionKind: LineTablesOnly, enums: !2)
|
|
!1 = !DIFile(filename: "/tmp/t.c", directory: "/tmp")
|
|
!2 = !{}
|
|
!3 = !{i32 2, !"Dwarf Version", i32 2}
|
|
!4 = !{i32 2, !"Debug Info Version", i32 3}
|
|
!7 = distinct !DISubprogram(name: "forced", scope: !1, file: !1, line: 1, type: !8, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !2)
|
|
!8 = !DISubroutineType(types: !2)
|
|
!9 = !DILocation(line: 3, column: 20, scope: !7)
|
|
!10 = !DILocation(line: 3, column: 3, scope: !7)
|
|
!11 = !DILocation(line: 6, column: 1, scope: !7)
|
|
!12 = !DILocation(line: 4, column: 12, scope: !7)
|
|
!13 = !{!14, !14, i64 0}
|
|
!14 = !{!"omnipotent char", !15, i64 0}
|
|
!15 = !{!"Simple C/C++ TBAA"}
|
|
!16 = !DILocation(line: 4, column: 19, scope: !7)
|
|
!17 = !DILocation(line: 4, column: 17, scope: !7)
|
|
!18 = !DILocation(line: 4, column: 5, scope: !7)
|
|
!19 = !DILocation(line: 4, column: 10, scope: !7)
|
|
!20 = distinct !{!20, !21}
|
|
!21 = !{!"llvm.loop.distribute.enable", i1 true}
|
|
!22 = !{!"function_entry_count", i64 3}
|
|
!23 = !{!"branch_weights", i32 99, i32 1}
|
|
!24 = !{!"branch_weights", i32 1, i32 99}
|