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d768b97424
Depends on https://reviews.llvm.org/D142861. Alternative to https://reviews.llvm.org/D137601. xxHash is much faster than djbHash. This makes a simple Rust test case with a large constant string 10% faster to compile. Previous attempts at changing this hash function (e.g. https://reviews.llvm.org/D97396) had to be reverted due to breaking tests that depended on iteration order. No additional tests fail with this patch compared to `main` when running `check-all` with `-DLLVM_ENABLE_PROJECTS="all"` (on a Linux host), so I hope I found everything that needs to be changed. Differential Revision: https://reviews.llvm.org/D142862
42 lines
1.5 KiB
C
42 lines
1.5 KiB
C
// RUN: %clang_pgogen -o %t -g -mllvm --debug-info-correlate -mllvm --disable-vp=true %s
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// RUN: llvm-profdata show --debug-info=%t --detailed-summary --show-prof-sym-list | FileCheck %s
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// RUN: llvm-profdata show --debug-info=%t --show-format=yaml | FileCheck %s --match-full-lines --check-prefix YAML
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// RUN: %clang_pgogen -o %t.no.dbg -mllvm --debug-info-correlate -mllvm --disable-vp=true %s
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// RUN: not llvm-profdata show --debug-info=%t.no.dbg 2>&1 | FileCheck %s --check-prefix NO-DBG
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// NO-DBG: unable to correlate profile: could not find any profile metadata in debug info
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// YAML: Probes:
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// YAML: - Function Name: a
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// YAML: Linkage Name: a
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// YAML: CFG Hash: 0x[[#%.1X,HASH:]]
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// YAML: Counter Offset: 0x0
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// YAML: Num Counters: 1
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// YAML: File: [[FILE:'.*']]
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// YAML: Line: [[@LINE+1]]
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void a() {}
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// YAML: - Function Name: b
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// YAML: Linkage Name: b
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// YAML: CFG Hash: 0x[[#%.1X,HASH:]]
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// YAML: Counter Offset: 0x8
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// YAML: Num Counters: 1
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// YAML: File: [[FILE:'.*']]
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// YAML: Line: [[@LINE+1]]
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void b() {}
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// YAML: - Function Name: main
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// YAML: Linkage Name: main
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// YAML: CFG Hash: 0x[[#%.1X,HASH:]]
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// YAML: Counter Offset: 0x10
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// YAML: Num Counters: 1
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// YAML: File: [[FILE]]
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// YAML: Line: [[@LINE+1]]
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int main() { return 0; }
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// CHECK: main
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// CHECK: a
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// CHECK: b
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// CHECK: Counters section size: 0x18 bytes
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// CHECK: Found 3 functions
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