diff options
author | Adam Nemet <anemet@apple.com> | 2017-12-01 20:41:38 +0000 |
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committer | Adam Nemet <anemet@apple.com> | 2017-12-01 20:41:38 +0000 |
commit | c4f204db88ed71acb6fd7d08b7fad70004ee8464 (patch) | |
tree | cb106ea07e5fce83ba690b96993cc535d82e7438 /test/CodeGen/AArch64 | |
parent | 4b50cdffe5760bd771313fc8da82fcd6325b571d (diff) |
[opt-remarks] If hotness threshold is set, ignore remarks without hotness
These are blocks that haven't not been executed during training. For large
projects this could make a significant difference. For the project, I was
looking at, I got an order of magnitude decrease in the size of the total YAML
files with this and r319235.
Differential Revision: https://reviews.llvm.org/D40678
Re-commit after fixing the failing testcase in rL319576, rL319577 and
rL319578.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319581 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/AArch64')
-rw-r--r-- | test/CodeGen/AArch64/arm64-spill-remarks-treshold-hotness.ll | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/test/CodeGen/AArch64/arm64-spill-remarks-treshold-hotness.ll b/test/CodeGen/AArch64/arm64-spill-remarks-treshold-hotness.ll new file mode 100644 index 00000000000..fe22296320f --- /dev/null +++ b/test/CodeGen/AArch64/arm64-spill-remarks-treshold-hotness.ll @@ -0,0 +1,60 @@ +; RUN: llc < %s -mtriple=arm64-apple-ios7.0 -aarch64-neon-syntax=apple -pass-remarks-missed=regalloc \ +; RUN: -pass-remarks-with-hotness 2>&1 | FileCheck %s + +; RUN: llc < %s -mtriple=arm64-apple-ios7.0 -aarch64-neon-syntax=apple -pass-remarks-missed=regalloc \ +; RUN: -pass-remarks-with-hotness -pass-remarks-hotness-threshold=1 \ +; RUN: 2>&1 | FileCheck -check-prefix=THRESHOLD %s + +; CHECK: remark: /tmp/kk.c:3:20: 1 spills 1 reloads generated in loop{{$}} +; THRESHOLD-NOT: remark + +define void @fpr128(<4 x float>* %p) nounwind ssp { +entry: + br label %loop, !dbg !8 + +loop: + %i = phi i32 [ 0, %entry], [ %i.2, %end2 ] + br label %loop2, !dbg !9 + +loop2: + %j = phi i32 [ 0, %loop], [ %j.2, %loop2 ] + call void asm sideeffect "; inlineasm", "~{q0},~{q1},~{q2},~{q3},~{q4},~{q5},~{q6},~{q7},~{q8},~{q9},~{q10},~{q11},~{q12},~{q13},~{q14},~{q15},~{q16},~{q17},~{q18},~{q19},~{q20},~{q21},~{q22},~{q23},~{q24},~{q25},~{q26},~{q27},~{q28},~{q29},~{q30},~{q31},~{x0},~{x1},~{x2},~{x3},~{x4},~{x5},~{x6},~{x7},~{x8},~{x9},~{x10},~{x11},~{x12},~{x13},~{x14},~{x15},~{x16},~{x17},~{x18},~{x19},~{x20},~{x21},~{x22},~{x23},~{x24},~{x25},~{x26},~{x27},~{x28},~{fp},~{lr},~{sp},~{memory}"() nounwind + %j.2 = add i32 %j, 1 + %c2 = icmp slt i32 %j.2, 100 + br i1 %c2, label %loop2, label %end2 + +end2: + call void asm sideeffect "; inlineasm", "~{q0},~{q1},~{q2},~{q3},~{q4},~{q5},~{q6},~{q7},~{q8},~{q9},~{q10},~{q11},~{q12},~{q13},~{q14},~{q15},~{q16},~{q17},~{q18},~{q19},~{q20},~{q21},~{q22},~{q23},~{q24},~{q25},~{q26},~{q27},~{q28},~{q29},~{q30},~{q31},~{x0},~{x1},~{x2},~{x3},~{x4},~{x5},~{x6},~{x7},~{x8},~{x9},~{x10},~{x11},~{x12},~{x13},~{x14},~{x15},~{x16},~{x17},~{x18},~{x19},~{x20},~{x21},~{x22},~{x23},~{x24},~{x25},~{x26},~{x27},~{x28},~{fp},~{lr},~{sp},~{memory}"() nounwind + %i.2 = add i32 %i, 1 + %c = icmp slt i32 %i.2, 100 + br i1 %c, label %loop, label %end + +end: + br label %loop3 + +loop3: + %k = phi i32 [ 0, %end], [ %k.2, %loop3 ] + call void asm sideeffect "; inlineasm", "~{q0},~{q1},~{q2},~{q3},~{q4},~{q5},~{q6},~{q7},~{q8},~{q9},~{q10},~{q11},~{q12},~{q13},~{q14},~{q15},~{q16},~{q17},~{q18},~{q19},~{q20},~{q21},~{q22},~{q23},~{q24},~{q25},~{q26},~{q27},~{q28},~{q29},~{q30},~{q31},~{x0},~{x1},~{x2},~{x3},~{x4},~{x5},~{x6},~{x7},~{x8},~{x9},~{x10},~{x11},~{x12},~{x13},~{x14},~{x15},~{x16},~{x17},~{x18},~{x19},~{x20},~{x21},~{x22},~{x23},~{x24},~{x25},~{x26},~{x27},~{x28},~{fp},~{lr},~{sp},~{memory}"() nounwind + %k.2 = add i32 %k, 1 + %c3 = icmp slt i32 %k.2, 100 + br i1 %c3, label %loop3, label %end3, !dbg !10 + +end3: + ret void +} + +!llvm.dbg.cu = !{!0} +!llvm.module.flags = !{!3, !4} +!llvm.ident = !{!5} + +!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.9.0 ", isOptimized: true, runtimeVersion: 0, emissionKind: NoDebug, enums: !2) +!1 = !DIFile(filename: "/tmp/kk.c", directory: "/tmp") +!2 = !{} +!3 = !{i32 2, !"Debug Info Version", i32 3} +!4 = !{i32 1, !"PIC Level", i32 2} +!5 = !{!"clang version 3.9.0 "} +!6 = distinct !DISubprogram(name: "success", scope: !1, file: !1, line: 1, type: !7, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !2) +!7 = !DISubroutineType(types: !2) +!8 = !DILocation(line: 1, column: 20, scope: !6) +!9 = !DILocation(line: 2, column: 20, scope: !6) +!10 = !DILocation(line: 3, column: 20, scope: !6) |