mirror of
https://github.com/c64scene-ar/llvm-6502.git
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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
54 lines
1.6 KiB
LLVM
54 lines
1.6 KiB
LLVM
; RUN: opt < %s -globalopt -S | FileCheck %s
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declare void @wait()
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declare void @signal()
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declare void @start_thread(void ()*)
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@x = internal thread_local global [100 x i32] zeroinitializer, align 16
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@ip = internal global i32* null, align 8
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; PR14309: GlobalOpt would think that the value of @ip is always the address of
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; x[1]. However, that address is different for different threads so @ip cannot
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; be replaced with a constant.
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define i32 @f() {
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entry:
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; Set @ip to point to x[1] for thread 1.
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store i32* getelementptr inbounds ([100 x i32], [100 x i32]* @x, i64 0, i64 1), i32** @ip, align 8
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; Run g on a new thread.
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tail call void @start_thread(void ()* @g) nounwind
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tail call void @wait() nounwind
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; Reset x[1] for thread 1.
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store i32 0, i32* getelementptr inbounds ([100 x i32], [100 x i32]* @x, i64 0, i64 1), align 4
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; Read the value of @ip, which now points at x[1] for thread 2.
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%0 = load i32*, i32** @ip, align 8
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%1 = load i32, i32* %0, align 4
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ret i32 %1
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; CHECK-LABEL: @f(
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; Make sure that the load from @ip hasn't been removed.
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; CHECK: load i32*, i32** @ip
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; CHECK: ret
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}
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define internal void @g() nounwind uwtable {
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entry:
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; Set @ip to point to x[1] for thread 2.
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store i32* getelementptr inbounds ([100 x i32], [100 x i32]* @x, i64 0, i64 1), i32** @ip, align 8
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; Store 50 in x[1] for thread 2.
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store i32 50, i32* getelementptr inbounds ([100 x i32], [100 x i32]* @x, i64 0, i64 1), align 4
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tail call void @signal() nounwind
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ret void
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; CHECK-LABEL: @g(
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; Make sure that the store to @ip hasn't been removed.
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; CHECK: store {{.*}} @ip
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; CHECK: ret
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}
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