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198d8baafb
One of several parallel first steps to remove the target type of pointers,
replacing them with a single opaque pointer type.
This adds an explicit type parameter to the gep instruction so that when the
first parameter becomes an opaque pointer type, the type to gep through is
still available to the instructions.
* This doesn't modify gep operators, only instructions (operators will be
handled separately)
* Textual IR changes only. Bitcode (including upgrade) and changing the
in-memory representation will be in separate changes.
* geps of vectors are transformed as:
getelementptr <4 x float*> %x, ...
->getelementptr float, <4 x float*> %x, ...
Then, once the opaque pointer type is introduced, this will ultimately look
like:
getelementptr float, <4 x ptr> %x
with the unambiguous interpretation that it is a vector of pointers to float.
* address spaces remain on the pointer, not the type:
getelementptr float addrspace(1)* %x
->getelementptr float, float addrspace(1)* %x
Then, eventually:
getelementptr float, ptr addrspace(1) %x
Importantly, the massive amount of test case churn has been automated by
same crappy python code. I had to manually update a few test cases that
wouldn't fit the script's model (r228970,r229196,r229197,r229198). The
python script just massages stdin and writes the result to stdout, I
then wrapped that in a shell script to handle replacing files, then
using the usual find+xargs to migrate all the files.
update.py:
import fileinput
import sys
import re
ibrep = re.compile(r"(^.*?[^%\w]getelementptr inbounds )(((?:<\d* x )?)(.*?)(| addrspace\(\d\)) *\*(|>)(?:$| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$))")
normrep = re.compile( r"(^.*?[^%\w]getelementptr )(((?:<\d* x )?)(.*?)(| addrspace\(\d\)) *\*(|>)(?:$| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$))")
def conv(match, line):
if not match:
return line
line = match.groups()[0]
if len(match.groups()[5]) == 0:
line += match.groups()[2]
line += match.groups()[3]
line += ", "
line += match.groups()[1]
line += "\n"
return line
for line in sys.stdin:
if line.find("getelementptr ") == line.find("getelementptr inbounds"):
if line.find("getelementptr inbounds") != line.find("getelementptr inbounds ("):
line = conv(re.match(ibrep, line), line)
elif line.find("getelementptr ") != line.find("getelementptr ("):
line = conv(re.match(normrep, line), line)
sys.stdout.write(line)
apply.sh:
for name in "$@"
do
python3 `dirname "$0"`/update.py < "$name" > "$name.tmp" && mv "$name.tmp" "$name"
rm -f "$name.tmp"
done
The actual commands:
From llvm/src:
find test/ -name *.ll | xargs ./apply.sh
From llvm/src/tools/clang:
find test/ -name *.mm -o -name *.m -o -name *.cpp -o -name *.c | xargs -I '{}' ../../apply.sh "{}"
From llvm/src/tools/polly:
find test/ -name *.ll | xargs ./apply.sh
After that, check-all (with llvm, clang, clang-tools-extra, lld,
compiler-rt, and polly all checked out).
The extra 'rm' in the apply.sh script is due to a few files in clang's test
suite using interesting unicode stuff that my python script was throwing
exceptions on. None of those files needed to be migrated, so it seemed
sufficient to ignore those cases.
Reviewers: rafael, dexonsmith, grosser
Differential Revision: http://reviews.llvm.org/D7636
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230786 91177308-0d34-0410-b5e6-96231b3b80d8
53 lines
3.6 KiB
LLVM
53 lines
3.6 KiB
LLVM
; RUN: llc -march=ppc64 -mcpu=pwr7 -O2 -relocation-model=pic < %s | FileCheck %s
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; RUN: llc -march=ppc64 -mcpu=pwr7 -O2 -relocation-model=pic < %s | grep "__tls_get_addr" | count 1
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; This test was derived from LLVM's own
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; PrettyStackTraceEntry::~PrettyStackTraceEntry(). It demonstrates an
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; opportunity for CSE of calls to __tls_get_addr().
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target datalayout = "e-m:e-i64:64-n32:64"
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target triple = "powerpc64le-unknown-linux-gnu"
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%"class.llvm::PrettyStackTraceEntry" = type { i32 (...)**, %"class.llvm::PrettyStackTraceEntry"* }
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@_ZTVN4llvm21PrettyStackTraceEntryE = unnamed_addr constant [5 x i8*] [i8* null, i8* null, i8* bitcast (void (%"class.llvm::PrettyStackTraceEntry"*)* @_ZN4llvm21PrettyStackTraceEntryD2Ev to i8*), i8* bitcast (void (%"class.llvm::PrettyStackTraceEntry"*)* @_ZN4llvm21PrettyStackTraceEntryD0Ev to i8*), i8* bitcast (void ()* @__cxa_pure_virtual to i8*)], align 8
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@_ZL20PrettyStackTraceHead = internal thread_local unnamed_addr global %"class.llvm::PrettyStackTraceEntry"* null, align 8
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@.str = private unnamed_addr constant [87 x i8] c"PrettyStackTraceHead == this && \22Pretty stack trace entry destruction is out of order\22\00", align 1
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@.str1 = private unnamed_addr constant [64 x i8] c"/home/wschmidt/llvm/llvm-test2/lib/Support/PrettyStackTrace.cpp\00", align 1
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@__PRETTY_FUNCTION__._ZN4llvm21PrettyStackTraceEntryD2Ev = private unnamed_addr constant [62 x i8] c"virtual llvm::PrettyStackTraceEntry::~PrettyStackTraceEntry()\00", align 1
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declare void @_ZN4llvm21PrettyStackTraceEntryD2Ev(%"class.llvm::PrettyStackTraceEntry"* %this) unnamed_addr
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declare void @__cxa_pure_virtual()
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declare void @__assert_fail(i8*, i8*, i32 zeroext, i8*)
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declare void @_ZdlPv(i8*)
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define void @_ZN4llvm21PrettyStackTraceEntryD0Ev(%"class.llvm::PrettyStackTraceEntry"* %this) unnamed_addr align 2 {
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entry:
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%0 = getelementptr inbounds %"class.llvm::PrettyStackTraceEntry", %"class.llvm::PrettyStackTraceEntry"* %this, i64 0, i32 0
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store i32 (...)** bitcast (i8** getelementptr inbounds ([5 x i8*]* @_ZTVN4llvm21PrettyStackTraceEntryE, i64 0, i64 2) to i32 (...)**), i32 (...)*** %0, align 8
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%1 = load %"class.llvm::PrettyStackTraceEntry"** @_ZL20PrettyStackTraceHead, align 8
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%cmp.i = icmp eq %"class.llvm::PrettyStackTraceEntry"* %1, %this
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br i1 %cmp.i, label %_ZN4llvm21PrettyStackTraceEntryD2Ev.exit, label %cond.false.i
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cond.false.i: ; preds = %entry
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tail call void @__assert_fail(i8* getelementptr inbounds ([87 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([64 x i8]* @.str1, i64 0, i64 0), i32 zeroext 119, i8* getelementptr inbounds ([62 x i8]* @__PRETTY_FUNCTION__._ZN4llvm21PrettyStackTraceEntryD2Ev, i64 0, i64 0))
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unreachable
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_ZN4llvm21PrettyStackTraceEntryD2Ev.exit: ; preds = %entry
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%NextEntry.i.i = getelementptr inbounds %"class.llvm::PrettyStackTraceEntry", %"class.llvm::PrettyStackTraceEntry"* %this, i64 0, i32 1
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%2 = bitcast %"class.llvm::PrettyStackTraceEntry"** %NextEntry.i.i to i64*
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%3 = load i64* %2, align 8
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store i64 %3, i64* bitcast (%"class.llvm::PrettyStackTraceEntry"** @_ZL20PrettyStackTraceHead to i64*), align 8
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%4 = bitcast %"class.llvm::PrettyStackTraceEntry"* %this to i8*
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tail call void @_ZdlPv(i8* %4)
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ret void
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}
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; CHECK-LABEL: _ZN4llvm21PrettyStackTraceEntryD0Ev:
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; CHECK: addis [[REG1:[0-9]+]], 2, _ZL20PrettyStackTraceHead@got@tlsld@ha
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; CHECK: addi 3, [[REG1]], _ZL20PrettyStackTraceHead@got@tlsld@l
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; CHECK: bl __tls_get_addr(_ZL20PrettyStackTraceHead@tlsld)
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; CHECK: addis 3, 3, _ZL20PrettyStackTraceHead@dtprel@ha
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; CHECK: ld {{[0-9]+}}, _ZL20PrettyStackTraceHead@dtprel@l(3)
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; CHECK: std {{[0-9]+}}, _ZL20PrettyStackTraceHead@dtprel@l(3)
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