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[LoopDist] Also emit optimization remark on success (-Rpass=)

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The option -Rpass=loop-distribute now reports the loops that were
distributed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@268006 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Adam Nemet 2016-04-29 07:10:46 +00:00
parent dcfb1a65ad
commit 4d336bd208
2 changed files with 59 additions and 0 deletions
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3
lib/Transforms/Scalar/LoopDistribute.cpp
View File

@ -742,6 +742,9 @@ public:
}
++NumLoopsDistributed;
// Report the success.
emitOptimizationRemark(F->getContext(), LDIST_NAME, *F, L->getStartLoc(),
"distributed loop");
return true;
}

56
test/Transforms/LoopDistribute/diagnostics.ll
View File

@ -19,6 +19,13 @@
; 10 A[i] = B[i] * C[i];
; 11 }
; 12 }
; 13
; 14 void success (char *A, char *B, char *C, char *D, char *E, int N) {
; 15 for(int i = 0; i < N; i++) {
; 16 A[i + 1] = A[i] + B[i];
; 17 C[i] = D[i] * E[i];
; 18 }
; 19 }
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.11.0"
@ -84,6 +91,41 @@ for.cond.cleanup:
ret void, !dbg !25
}
; REMARKS: remark: /tmp/t.c:15:3: distributed loop
define void @success(i8* %A, i8* %B, i8* %C, i8* %D, i8* %E, i32 %N) !dbg !31 {
entry:
%cmp28 = icmp sgt i32 %N, 0, !dbg !32
br i1 %cmp28, label %ph, label %for.cond.cleanup, !dbg !33
ph:
br label %for.body
for.body:
%indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %ph ]
%arrayidx = getelementptr inbounds i8, i8* %A, i64 %indvars.iv, !dbg !35
%0 = load i8, i8* %arrayidx, align 1, !dbg !35, !tbaa !13
%arrayidx2 = getelementptr inbounds i8, i8* %B, i64 %indvars.iv, !dbg !36
%1 = load i8, i8* %arrayidx2, align 1, !dbg !36, !tbaa !13
%add = add i8 %1, %0, !dbg !37
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !33
%arrayidx7 = getelementptr inbounds i8, i8* %A, i64 %indvars.iv.next, !dbg !38
store i8 %add, i8* %arrayidx7, align 1, !dbg !39, !tbaa !13
%arrayidx9 = getelementptr inbounds i8, i8* %D, i64 %indvars.iv, !dbg !40
%2 = load i8, i8* %arrayidx9, align 1, !dbg !40, !tbaa !13
%arrayidx12 = getelementptr inbounds i8, i8* %E, i64 %indvars.iv, !dbg !41
%3 = load i8, i8* %arrayidx12, align 1, !dbg !41, !tbaa !13
%mul = mul i8 %3, %2, !dbg !42
%arrayidx16 = getelementptr inbounds i8, i8* %C, i64 %indvars.iv, !dbg !43
store i8 %mul, i8* %arrayidx16, align 1, !dbg !44, !tbaa !13
%lftr.wideiv = trunc i64 %indvars.iv.next to i32, !dbg !33
%exitcond = icmp eq i32 %lftr.wideiv, %N, !dbg !33
br i1 %exitcond, label %for.cond.cleanup, label %for.body, !dbg !33
for.cond.cleanup:
ret void, !dbg !34
}
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!3, !4}
@ -116,3 +158,17 @@ for.cond.cleanup:
!28 = !DILocation(line: 10, column: 17, scope: !22)
!29 = !DILocation(line: 10, column: 5, scope: !22)
!30 = !DILocation(line: 10, column: 10, scope: !22)
!31 = distinct !DISubprogram(name: "success", scope: !1, file: !1, line: 14, type: !8, isLocal: false, isDefinition: true, scopeLine: 14, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !2)
!32 = !DILocation(line: 15, column: 20, scope: !31)
!33 = !DILocation(line: 15, column: 3, scope: !31)
!34 = !DILocation(line: 19, column: 1, scope: !31)
!35 = !DILocation(line: 16, column: 16, scope: !31)
!36 = !DILocation(line: 16, column: 23, scope: !31)
!37 = !DILocation(line: 16, column: 21, scope: !31)
!38 = !DILocation(line: 16, column: 5, scope: !31)
!39 = !DILocation(line: 16, column: 14, scope: !31)
!40 = !DILocation(line: 17, column: 12, scope: !31)
!41 = !DILocation(line: 17, column: 19, scope: !31)
!42 = !DILocation(line: 17, column: 17, scope: !31)
!43 = !DILocation(line: 17, column: 5, scope: !31)
!44 = !DILocation(line: 17, column: 10, scope: !31)