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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
41 lines
1.5 KiB
LLVM
41 lines
1.5 KiB
LLVM
; RUN: opt < %s -basicaa -memcpyopt -S | FileCheck %s
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; These memmoves should get optimized to memcpys.
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
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target triple = "x86_64-apple-darwin9.0"
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declare void @llvm.memmove.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind
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define i8* @test1(i8* nocapture %src) nounwind {
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entry:
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; CHECK-LABEL: @test1(
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; CHECK: call void @llvm.memcpy
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%malloccall = tail call i8* @malloc(i32 trunc (i64 mul nuw (i64 ptrtoint (i8* getelementptr (i8, i8* null, i32 1) to i64), i64 13) to i32))
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%call3 = bitcast i8* %malloccall to [13 x i8]*
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%call3.sub = getelementptr inbounds [13 x i8], [13 x i8]* %call3, i64 0, i64 0
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tail call void @llvm.memmove.p0i8.p0i8.i64(i8* %call3.sub, i8* %src, i64 13, i32 1, i1 false)
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ret i8* %call3.sub
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}
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declare noalias i8* @malloc(i32)
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define void @test2(i8* %P) nounwind {
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entry:
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; CHECK-LABEL: @test2(
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; CHECK: call void @llvm.memcpy
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%add.ptr = getelementptr i8, i8* %P, i64 16
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tail call void @llvm.memmove.p0i8.p0i8.i64(i8* %P, i8* %add.ptr, i64 16, i32 1, i1 false)
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ret void
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}
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; This cannot be optimize because the src/dst really do overlap.
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define void @test3(i8* %P) nounwind {
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entry:
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; CHECK-LABEL: @test3(
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; CHECK: call void @llvm.memmove
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%add.ptr = getelementptr i8, i8* %P, i64 16
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tail call void @llvm.memmove.p0i8.p0i8.i64(i8* %P, i8* %add.ptr, i64 17, i32 1, i1 false)
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ret void
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}
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