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TheRock/compiler/amd-llvm/llvm/test/Transforms/PGOProfile/memop_hash.ll
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

25 lines
818 B
LLVM

; 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)