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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
57 lines
2.1 KiB
LLVM
57 lines
2.1 KiB
LLVM
; RUN: llc < %s -mtriple=x86_64-unknown-freebsd8.1 -o /dev/null
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; This formerly crashed, PR 8154.
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module asm ".weak sem_close"
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module asm ".equ sem_close, _sem_close"
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module asm ".weak sem_destroy"
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module asm ".equ sem_destroy, _sem_destroy"
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module asm ".weak sem_getvalue"
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module asm ".equ sem_getvalue, _sem_getvalue"
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module asm ".weak sem_init"
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module asm ".equ sem_init, _sem_init"
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module asm ".weak sem_open"
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module asm ".equ sem_open, _sem_open"
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module asm ".weak sem_post"
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module asm ".equ sem_post, _sem_post"
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module asm ".weak sem_timedwait"
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module asm ".equ sem_timedwait, _sem_timedwait"
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module asm ".weak sem_trywait"
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module asm ".equ sem_trywait, _sem_trywait"
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module asm ".weak sem_unlink"
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module asm ".equ sem_unlink, _sem_unlink"
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module asm ".weak sem_wait"
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module asm ".equ sem_wait, _sem_wait"
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%struct._sem = type { i32, %struct._usem }
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%struct._usem = type { i32, i32, i32 }
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define void @_sem_timedwait(%struct._sem* noalias %sem) nounwind ssp {
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entry:
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br i1 undef, label %while.cond.preheader, label %sem_check_validity.exit
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while.cond.preheader: ; preds = %entry
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%tmp4 = getelementptr inbounds %struct._sem, %struct._sem* %sem, i64 0, i32 1, i32 1
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br label %while.cond
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sem_check_validity.exit: ; preds = %entry
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ret void
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while.cond: ; preds = %while.body, %while.cond.preheader
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br i1 undef, label %while.body, label %while.end
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while.body: ; preds = %while.cond
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%0 = call i8 asm sideeffect "\09lock ; \09\09\09cmpxchgl $2,$1 ;\09 sete\09$0 ;\09\091:\09\09\09\09# atomic_cmpset_int", "={ax},=*m,r,{ax},*m,~{memory},~{dirflag},~{fpsr},~{flags}"(i32* %tmp4, i32 undef, i32 undef, i32* %tmp4) nounwind, !srcloc !0
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br i1 undef, label %while.cond, label %return
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while.end: ; preds = %while.cond
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br i1 undef, label %if.end18, label %return
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if.end18: ; preds = %while.end
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unreachable
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return: ; preds = %while.end, %while.body
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ret void
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}
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!0 = !{i32 158484}
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