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https://github.com/c64scene-ar/llvm-6502.git
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c4b058f9e7
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204802 91177308-0d34-0410-b5e6-96231b3b80d8
27 lines
1.3 KiB
LLVM
27 lines
1.3 KiB
LLVM
; RUN: llc %s -o - | FileCheck %s
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target datalayout = "E-p:32:32:32-i1:8:8-i8:8:32-i16:16:32-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-n32-S64"
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target triple = "mips--linux-gnu"
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@buffer = global [32 x i8] c"This is a largely unused buffer\00", align 1
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@.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
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@.str1 = private unnamed_addr constant [25 x i8] c"Still, largely unused...\00", align 1
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define i32 @main() {
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entry:
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%retval = alloca i32, align 4
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store i32 0, i32* %retval
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%call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i8* getelementptr inbounds ([32 x i8]* @buffer, i32 0, i32 0))
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%call1 = call i8* @strcpy(i8* getelementptr inbounds ([32 x i8]* @buffer, i32 0, i32 0), i8* getelementptr inbounds ([25 x i8]* @.str1, i32 0, i32 0)) #3
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call void @llvm.clear_cache(i8* getelementptr inbounds ([32 x i8]* @buffer, i32 0, i32 0), i8* getelementptr inbounds (i8* getelementptr inbounds ([32 x i8]* @buffer, i32 0, i32 0), i32 32)) #3
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%call2 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i8* getelementptr inbounds ([32 x i8]* @buffer, i32 0, i32 0))
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ret i32 0
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}
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; CHECK: __clear_cache
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declare i32 @printf(i8*, ...)
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declare i8* @strcpy(i8*, i8*)
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declare void @llvm.clear_cache(i8*, i8*)
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