summaryrefslogtreecommitdiffstats
path: root/llvm/test/Transforms/SampleProfile/discriminator.ll
diff options
context:
space:
mode:
Diffstat (limited to 'llvm/test/Transforms/SampleProfile/discriminator.ll')
-rw-r--r--llvm/test/Transforms/SampleProfile/discriminator.ll90
1 files changed, 0 insertions, 90 deletions
diff --git a/llvm/test/Transforms/SampleProfile/discriminator.ll b/llvm/test/Transforms/SampleProfile/discriminator.ll
deleted file mode 100644
index 7b3b270d9f1..00000000000
--- a/llvm/test/Transforms/SampleProfile/discriminator.ll
+++ /dev/null
@@ -1,90 +0,0 @@
-; RUN: opt < %s -sample-profile -sample-profile-file=%S/Inputs/discriminator.prof | opt -analyze -branch-prob | FileCheck %s
-; RUN: opt < %s -passes=sample-profile -sample-profile-file=%S/Inputs/discriminator.prof | opt -analyze -branch-prob | FileCheck %s
-
-; Original code
-;
-; 1 int foo(int i) {
-; 2 int x = 0;
-; 3 while (i < 100) {
-; 4 if (i < 5) x--;
-; 5 i++;
-; 6 }
-; 7 return x;
-; 8 }
-;
-; In this test, if the loop is executed 100 times, the decrement operation
-; at line 4 should only execute 5 times. This is reflected in the profile
-; data for line offset 3. In Inputs/discriminator.prof, we have:
-;
-; 3: 100
-; 3.1: 5
-;
-; This means that the predicate 'i < 5' (line 3) is executed 100 times,
-; but the then branch (line 3.1) is only executed 5 times.
-
-define i32 @foo(i32 %i) #0 !dbg !4 {
-; CHECK: Printing analysis 'Branch Probability Analysis' for function 'foo':
-entry:
- %i.addr = alloca i32, align 4
- %x = alloca i32, align 4
- store i32 %i, i32* %i.addr, align 4
- store i32 0, i32* %x, align 4, !dbg !10
- br label %while.cond, !dbg !11
-
-while.cond: ; preds = %if.end, %entry
- %0 = load i32, i32* %i.addr, align 4, !dbg !12
- %cmp = icmp slt i32 %0, 100, !dbg !12
- br i1 %cmp, label %while.body, label %while.end, !dbg !12
-; CHECK: edge while.cond -> while.body probability is 0x7d83ba68 / 0x80000000 = 98.06% [HOT edge]
-; CHECK: edge while.cond -> while.end probability is 0x027c4598 / 0x80000000 = 1.94%
-
-while.body: ; preds = %while.cond
- %1 = load i32, i32* %i.addr, align 4, !dbg !14
- %cmp1 = icmp slt i32 %1, 50, !dbg !14
- br i1 %cmp1, label %if.then, label %if.end, !dbg !14
-; CHECK: edge while.body -> if.then probability is 0x07878788 / 0x80000000 = 5.88%
-; CHECK: edge while.body -> if.end probability is 0x78787878 / 0x80000000 = 94.12% [HOT edge]
-
-if.then: ; preds = %while.body
- %2 = load i32, i32* %x, align 4, !dbg !17
- %dec = add nsw i32 %2, -1, !dbg !17
- store i32 %dec, i32* %x, align 4, !dbg !17
- br label %if.end, !dbg !17
-
-if.end: ; preds = %if.then, %while.body
- %3 = load i32, i32* %i.addr, align 4, !dbg !19
- %inc = add nsw i32 %3, 1, !dbg !19
- store i32 %inc, i32* %i.addr, align 4, !dbg !19
- br label %while.cond, !dbg !20
-
-while.end: ; preds = %while.cond
- %4 = load i32, i32* %x, align 4, !dbg !21
- ret i32 %4, !dbg !21
-}
-
-
-!llvm.dbg.cu = !{!0}
-!llvm.module.flags = !{!7, !8}
-!llvm.ident = !{!9}
-
-!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5 ", isOptimized: false, emissionKind: NoDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
-!1 = !DIFile(filename: "discriminator.c", directory: ".")
-!2 = !{}
-!4 = distinct !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 1, file: !1, scope: !5, type: !6, retainedNodes: !2)
-!5 = !DIFile(filename: "discriminator.c", directory: ".")
-!6 = !DISubroutineType(types: !2)
-!7 = !{i32 2, !"Dwarf Version", i32 4}
-!8 = !{i32 1, !"Debug Info Version", i32 3}
-!9 = !{!"clang version 3.5 "}
-!10 = !DILocation(line: 2, scope: !4)
-!11 = !DILocation(line: 3, scope: !4)
-!12 = !DILocation(line: 3, scope: !13)
-!13 = !DILexicalBlockFile(discriminator: 2, file: !1, scope: !4)
-!14 = !DILocation(line: 4, scope: !15)
-!15 = distinct !DILexicalBlock(line: 4, column: 0, file: !1, scope: !16)
-!16 = distinct !DILexicalBlock(line: 3, column: 0, file: !1, scope: !4)
-!17 = !DILocation(line: 4, scope: !18)
-!18 = !DILexicalBlockFile(discriminator: 2, file: !1, scope: !15)
-!19 = !DILocation(line: 5, scope: !16)
-!20 = !DILocation(line: 6, scope: !16)
-!21 = !DILocation(line: 7, scope: !4)
OpenPOWER on IntegriCloud