File: memop_hash.ll

package info (click to toggle)
llvm-toolchain-20 1%3A20.1.8-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,111,696 kB
  • sloc: cpp: 7,438,781; ansic: 1,393,871; asm: 1,012,926; python: 241,771; f90: 86,635; objc: 75,411; lisp: 42,144; pascal: 17,286; sh: 8,596; ml: 5,082; perl: 4,730; makefile: 3,591; awk: 3,523; javascript: 2,251; xml: 892; fortran: 672
file content (24 lines) | stat: -rw-r--r-- 818 bytes parent folder | download | duplicates (18) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
 
; RUN: opt < %s -passes=pgo-instr-gen -S | FileCheck %s

target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

declare void @llvm.memcpy.p0.p0.i32(ptr nocapture writeonly, ptr nocapture readonly, i32, i1)

define i64 @foo1(ptr %a, ptr %b, i32 %s) {
entry:
  call void @llvm.memcpy.p0.p0.i32(ptr %a, ptr %b, i32 %s, i1 false);
  ret i64 0
}

define i64 @foo2(ptr %a, ptr %b, i32 %s) {
entry:
  ret i64 0
}

; The two hashes should not be equal as the existence of the memcpy should change the hash.
;
; CHECK: @foo1
; CHECK: call void @llvm.instrprof.increment(ptr @__profn_foo1, i64 [[FOO1_HASH:[0-9]+]], i32 1, i32 0)
; CHECK: @foo2
; CHECK-NOT: call void @llvm.instrprof.increment(ptr @__profn_foo2, i64 [[FOO1_HASH]], i32 1, i32 0)