mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-04 06:09:05 +00:00
5a70dd1d82
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:])
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232184 91177308-0d34-0410-b5e6-96231b3b80d8
104 lines
4.8 KiB
LLVM
104 lines
4.8 KiB
LLVM
; Test lib call simplification of __strcpy_chk calls with various values
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; for src, dst, and slen.
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;
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; RUN: opt < %s -instcombine -S | FileCheck %s
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
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@a = common global [60 x i8] zeroinitializer, align 1
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@b = common global [60 x i8] zeroinitializer, align 1
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@.str = private constant [12 x i8] c"abcdefghijk\00"
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; Check cases where slen >= strlen (src).
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define i8* @test_simplify1() {
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; CHECK-LABEL: @test_simplify1(
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%dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
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%src = getelementptr inbounds [12 x i8], [12 x i8]* @.str, i32 0, i32 0
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i32 0, i32 0), i32 12, i32 1, i1 false)
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; CHECK-NEXT: ret i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0)
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%ret = call i8* @__strcpy_chk(i8* %dst, i8* %src, i32 60)
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ret i8* %ret
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}
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define i8* @test_simplify2() {
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; CHECK-LABEL: @test_simplify2(
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%dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
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%src = getelementptr inbounds [12 x i8], [12 x i8]* @.str, i32 0, i32 0
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i32 0, i32 0), i32 12, i32 1, i1 false)
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; CHECK-NEXT: ret i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0)
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%ret = call i8* @__strcpy_chk(i8* %dst, i8* %src, i32 12)
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ret i8* %ret
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}
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define i8* @test_simplify3() {
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; CHECK-LABEL: @test_simplify3(
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%dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
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%src = getelementptr inbounds [12 x i8], [12 x i8]* @.str, i32 0, i32 0
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i32 0, i32 0), i32 12, i32 1, i1 false)
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; CHECK-NEXT: ret i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0)
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%ret = call i8* @__strcpy_chk(i8* %dst, i8* %src, i32 -1)
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ret i8* %ret
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}
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; Check cases where there are no string constants.
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define i8* @test_simplify4() {
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; CHECK-LABEL: @test_simplify4(
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%dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
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%src = getelementptr inbounds [60 x i8], [60 x i8]* @b, i32 0, i32 0
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; CHECK-NEXT: %strcpy = call i8* @strcpy(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* getelementptr inbounds ([60 x i8], [60 x i8]* @b, i32 0, i32 0))
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; CHECK-NEXT: ret i8* %strcpy
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%ret = call i8* @__strcpy_chk(i8* %dst, i8* %src, i32 -1)
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ret i8* %ret
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}
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; Check case where the string length is not constant.
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define i8* @test_simplify5() {
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; CHECK-LABEL: @test_simplify5(
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%dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
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%src = getelementptr inbounds [12 x i8], [12 x i8]* @.str, i32 0, i32 0
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; CHECK-NEXT: %len = call i32 @llvm.objectsize.i32.p0i8(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i1 false)
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; CHECK-NEXT: %1 = call i8* @__memcpy_chk(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i32 0, i32 0), i32 12, i32 %len)
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; CHECK-NEXT: ret i8* %1
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%len = call i32 @llvm.objectsize.i32.p0i8(i8* %dst, i1 false)
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%ret = call i8* @__strcpy_chk(i8* %dst, i8* %src, i32 %len)
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ret i8* %ret
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}
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; Check case where the source and destination are the same.
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define i8* @test_simplify6() {
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; CHECK-LABEL: @test_simplify6(
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%dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
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; CHECK-NEXT: %len = call i32 @llvm.objectsize.i32.p0i8(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i1 false)
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; CHECK-NEXT: %ret = call i8* @__strcpy_chk(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i32 %len)
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; CHECK-NEXT: ret i8* %ret
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%len = call i32 @llvm.objectsize.i32.p0i8(i8* %dst, i1 false)
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%ret = call i8* @__strcpy_chk(i8* %dst, i8* %dst, i32 %len)
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ret i8* %ret
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}
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; Check case where slen < strlen (src).
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define i8* @test_no_simplify1() {
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; CHECK-LABEL: @test_no_simplify1(
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%dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
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%src = getelementptr inbounds [60 x i8], [60 x i8]* @b, i32 0, i32 0
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; CHECK-NEXT: %ret = call i8* @__strcpy_chk(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* getelementptr inbounds ([60 x i8], [60 x i8]* @b, i32 0, i32 0), i32 8)
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; CHECK-NEXT: ret i8* %ret
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%ret = call i8* @__strcpy_chk(i8* %dst, i8* %src, i32 8)
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ret i8* %ret
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}
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declare i8* @__strcpy_chk(i8*, i8*, i32) nounwind
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declare i32 @llvm.objectsize.i32.p0i8(i8*, i1) nounwind readonly
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