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llvm-project/llvm/test/CodeGen/X86/cache-intrinsic.ll

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Add @llvm.clear_cache builtin Implementing the LLVM part of the call to __builtin___clear_cache which translates into an intrinsic @llvm.clear_cache and is lowered by each target, either to a call to __clear_cache or nothing at all incase the caches are unified. Updating LangRef and adding some tests for the implemented architectures. Other archs will have to implement the method in case this builtin has to be compiled for it, since the default behaviour is to bail unimplemented. A Clang patch is required for the builtin to be lowered into the llvm intrinsic. This will be done next. llvm-svn: 204802
2014-03-26 20:52:28 +08:00
; 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, i32* %retval
[opaque pointer type] Add textual IR support for explicit type parameter to gep operator Similar to gep (r230786) and load (r230794) changes. Similar migration script can be used to update test cases, which successfully migrated all of LLVM and Polly, but about 4 test cases needed manually changes in Clang. (this script will read the contents of stdin and massage it into stdout - wrap it in the 'apply.sh' script shown in previous commits + xargs to apply it over a large set of test cases) import fileinput import sys import re rep = re.compile(r"(getelementptr(?:\s+inbounds)?\s*\()((<\d*\s+x\s+)?([^@]*?)(|\s*addrspace\(\d+\))\s*\*(?(3)>)\s*)(?=$|%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|zeroinitializer|<|\[\[[a-zA-Z]|\{\{)", re.MULTILINE | re.DOTALL) def conv(match): line = match.group(1) line += match.group(4) line += ", " line += match.group(2) return line line = sys.stdin.read() off = 0 for match in re.finditer(rep, line): sys.stdout.write(line[off:match.start()]) sys.stdout.write(conv(match)) off = match.end() sys.stdout.write(line[off:]) llvm-svn: 232184
2015-03-14 02:20:45 +08:00
%call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i32 0, i32 0), i8* getelementptr inbounds ([32 x i8], [32 x i8]* @buffer, i32 0, i32 0))
%call1 = call i8* @strcpy(i8* getelementptr inbounds ([32 x i8], [32 x i8]* @buffer, i32 0, i32 0), i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str1, i32 0, i32 0)) #3
call void @llvm.clear_cache(i8* getelementptr inbounds ([32 x i8], [32 x i8]* @buffer, i32 0, i32 0), i8* getelementptr inbounds (i8, i8* getelementptr inbounds ([32 x i8], [32 x i8]* @buffer, i32 0, i32 0), i32 32)) #3
%call3 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i32 0, i32 0), i8* getelementptr inbounds ([32 x i8], [32 x i8]* @buffer, i32 0, i32 0))
Add @llvm.clear_cache builtin Implementing the LLVM part of the call to __builtin___clear_cache which translates into an intrinsic @llvm.clear_cache and is lowered by each target, either to a call to __clear_cache or nothing at all incase the caches are unified. Updating LangRef and adding some tests for the implemented architectures. Other archs will have to implement the method in case this builtin has to be compiled for it, since the default behaviour is to bail unimplemented. A Clang patch is required for the builtin to be lowered into the llvm intrinsic. This will be done next. llvm-svn: 204802
2014-03-26 20:52:28 +08:00
ret i32 0
}
; CHECK-NOT: __clear_cache
declare i32 @printf(i8*, ...)
declare i8* @strcpy(i8*, i8*)
declare void @llvm.clear_cache(i8*, i8*)