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Differential D108371 Diff 394825 llvm/test/Transforms/LoopVectorize/diag-with-hotness-info-2.ll

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llvm/test/Transforms/LoopVectorize/diag-with-hotness-info-2.ll

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; 14 ; 14
; 15 void unknown(char *A, char *B, char *C, char *D, char *E, int N) { ; 15 void unknown(char *A, char *B, char *C, char *D, char *E, int N) {
; 16 for(int i = 0; i < N; i++) { ; 16 for(int i = 0; i < N; i++) {
; 17 A[i + 1] = A[i] + B[i]; ; 17 A[i + 1] = A[i] + B[i];
; 18 C[i] = D[i] * E[i]; ; 18 C[i] = D[i] * E[i];
; 19 } ; 19 }
; 20 } ; 20 }
; CHECK: remark: /tmp/s.c:2:3: loop not vectorized: unsafe dependent memory operations in loop. Use #pragma loop distribute(enable) to allow loop distribution to attempt to isolate the offending operations into a separate loop (hotness: 300) ; CHECK: remark: /tmp/s.c:3:14: loop not vectorized: unsafe dependent memory operations in loop. Use #pragma loop distribute(enable) to allow loop distribution to attempt to isolate the offending operations into a separate loop
alban.bridonneauUnsubmitted
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This hint is a useful one, and it was added purposefully. It should remain unchanged. I would suggest that you add a case in elaborateMemoryReport to recreate this hint.

alban.bridonneau: This hint is a useful one, and it was added purposefully. It should remain unchanged. I would…
; CHECK: remark: /tmp/s.c:9:3: loop not vectorized: unsafe dependent memory operations in loop. Use #pragma loop distribute(enable) to allow loop distribution to attempt to isolate the offending operations into a separate loop (hotness: 5000) ; CHECK-NEXT: Backward loop carried data dependence. Memory location is the same as accessed at /tmp/s.c:3:16 (hotness: 300)
; CHECK: remark: /tmp/s.c:16:3: loop not vectorized: unsafe dependent memory operations in loop. Use #pragma loop distribute(enable) to allow loop distribution to attempt to isolate the offending operations into a separate loop{{$}} ; CHECK: remark: /tmp/s.c:10:14: loop not vectorized: unsafe dependent memory operations in loop. Use #pragma loop distribute(enable) to allow loop distribution to attempt to isolate the offending operations into a separate loop
; CHECK-NEXT: Backward loop carried data dependence. Memory location is the same as accessed at /tmp/s.c:10:16 (hotness: 5000)
; CHECK: remark: /tmp/s.c:17:14: loop not vectorized: unsafe dependent memory operations in loop. Use #pragma loop distribute(enable) to allow loop distribution to attempt to isolate the offending operations into a separate loop
; CHECK-NEXT: Backward loop carried data dependence. Memory location is the same as accessed at /tmp/s.c:17:16{{$}}
; ModuleID = '/tmp/s.c' ; ModuleID = '/tmp/s.c'
source_filename = "/tmp/s.c" source_filename = "/tmp/s.c"
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
; Function Attrs: norecurse nounwind ssp uwtable ; Function Attrs: norecurse nounwind ssp uwtable
define void @cold(i8* nocapture %A, i8* nocapture readonly %B, i8* nocapture %C, i8* nocapture readonly %D, i8* nocapture readonly %E, i32 %N) local_unnamed_addr #0 !dbg !7 !prof !56 { define void @cold(i8* nocapture %A, i8* nocapture readonly %B, i8* nocapture %C, i8* nocapture readonly %D, i8* nocapture readonly %E, i32 %N) local_unnamed_addr #0 !dbg !7 !prof !56 {
entry: entry:
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