87d02e0dfd
This reverts commit 37eb9d13f891f7656f811516e765b929b169afe0.
Test failures have been fixed:
- ubsan failure fixed by 72eac42f21c0f45a27f3eaaff9364cbb5189b9e4
- warn-unsafe-buffer-usage-fixits-local-var-span.cpp fixed by
03cc52dfd1dbb4a59b479da55e87838fb93d2067 (wasn't related)
- test-output-format.ll failure was spurious, build failed at
https://lab.llvm.org/buildbot/#/builders/54/builds/3545 (b4431b2d945b6fc19b1a55ac6ce969a8e06e1e93)
but passed at
https://lab.llvm.org/buildbot/#/builders/54/builds/3546 (5ae99be0377248c74346096dc475af254a3fc799)
which is before my revert
b4431b2d94...5ae99be037
Original commit message:
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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