File: cache-intrinsic.ll

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llvm-toolchain-17 1%3A17.0.6-22
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; RUN: llc %s -o - | FileCheck %s
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

@buffer = global [32 x i8] c"This is a largely unused buffer\00", align 16
@.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
@.str1 = private unnamed_addr constant [25 x i8] c"Still, largely unused...\00", align 1

define i32 @main() {
entry:
  %retval = alloca i32, align 4
  store i32 0, ptr %retval
  %call = call i32 (ptr, ...) @printf(ptr @.str, ptr @buffer)
  %call1 = call ptr @strcpy(ptr @buffer, ptr @.str1) #3
  call void @llvm.clear_cache(ptr @buffer, ptr getelementptr inbounds (i8, ptr @buffer, i32 32)) #3
  %call3 = call i32 (ptr, ...) @printf(ptr @.str, ptr @buffer)
  ret i32 0
}

; CHECK-NOT: __clear_cache

declare i32 @printf(ptr, ...)

declare ptr @strcpy(ptr, ptr)

declare void @llvm.clear_cache(ptr, ptr)