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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
194 lines
9.6 KiB
LLVM
194 lines
9.6 KiB
LLVM
; RUN: llc < %s -O1 -mtriple thumbv7-apple-ios6 | FileCheck %s
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; Just make sure no one tries to make the assumption that the normal edge of an
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; invoke is never a critical edge. Previously, this code would assert.
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%struct.__CFString = type opaque
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declare void @bar(%struct.__CFString*, %struct.__CFString*)
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define noalias i8* @foo(i8* nocapture %inRefURL) noreturn ssp {
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entry:
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%call = tail call %struct.__CFString* @bar3()
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%call2 = invoke i8* @bar2()
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to label %for.cond unwind label %lpad
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for.cond: ; preds = %entry, %for.cond
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invoke void @bar(%struct.__CFString* undef, %struct.__CFString* null)
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to label %for.cond unwind label %lpad5
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lpad: ; preds = %entry
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%0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_sj0 to i8*)
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cleanup
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%1 = extractvalue { i8*, i32 } %0, 0
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%2 = extractvalue { i8*, i32 } %0, 1
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br label %ehcleanup
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lpad5: ; preds = %for.cond
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%3 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_sj0 to i8*)
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cleanup
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%4 = extractvalue { i8*, i32 } %3, 0
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%5 = extractvalue { i8*, i32 } %3, 1
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invoke void @release(i8* %call2)
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to label %ehcleanup unwind label %terminate.lpad.i.i16
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terminate.lpad.i.i16: ; preds = %lpad5
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%6 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_sj0 to i8*)
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catch i8* null
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tail call void @terminatev() noreturn nounwind
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unreachable
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ehcleanup: ; preds = %lpad5, %lpad
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%exn.slot.0 = phi i8* [ %1, %lpad ], [ %4, %lpad5 ]
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%ehselector.slot.0 = phi i32 [ %2, %lpad ], [ %5, %lpad5 ]
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%7 = bitcast %struct.__CFString* %call to i8*
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invoke void @release(i8* %7)
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to label %_ZN5SmartIPK10__CFStringED1Ev.exit unwind label %terminate.lpad.i.i
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terminate.lpad.i.i: ; preds = %ehcleanup
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%8 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_sj0 to i8*)
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catch i8* null
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tail call void @terminatev() noreturn nounwind
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unreachable
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_ZN5SmartIPK10__CFStringED1Ev.exit: ; preds = %ehcleanup
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%lpad.val = insertvalue { i8*, i32 } undef, i8* %exn.slot.0, 0
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%lpad.val12 = insertvalue { i8*, i32 } %lpad.val, i32 %ehselector.slot.0, 1
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resume { i8*, i32 } %lpad.val12
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}
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declare %struct.__CFString* @bar3()
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declare i8* @bar2()
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declare i32 @__gxx_personality_sj0(...)
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declare void @release(i8*)
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declare void @terminatev()
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; Make sure that the instruction DemoteRegToStack inserts to reload
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; %call.i.i.i14.i.i follows the instruction that saves the value to the stack in
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; basic block %entry.do.body.i.i.i_crit_edge.
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; Previously, DemoteRegToStack would insert a load instruction into the entry
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; block to reload %call.i.i.i14.i.i before the phi instruction (%0) in block
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; %do.body.i.i.i.
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; CHECK-LABEL: __Z4foo1c:
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; CHECK: blx __Znwm
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; CHECK: {{.*}}@ %entry.do.body.i.i.i_crit_edge
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; CHECK: str r0, [sp, [[OFFSET:#[0-9]+]]]
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; CHECK: ldr [[R0:r[0-9]+]], [sp, [[OFFSET]]]
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; CHECK: {{.*}}@ %do.body.i.i.i
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; CHECK: cmp [[R0]], #0
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%"class.std::__1::basic_string" = type { %"class.std::__1::__compressed_pair" }
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%"class.std::__1::__compressed_pair" = type { %"class.std::__1::__libcpp_compressed_pair_imp" }
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%"class.std::__1::__libcpp_compressed_pair_imp" = type { %"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__rep" }
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%"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__rep" = type { %union.anon }
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%union.anon = type { %"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__long" }
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%"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__long" = type { i32, i32, i8* }
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@.str = private unnamed_addr constant [12 x i8] c"some_string\00", align 1
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define void @_Z4foo1c(i8 signext %a) {
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entry:
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%s1 = alloca %"class.std::__1::basic_string", align 4
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call void @_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcm(%"class.std::__1::basic_string"* %s1, i8* getelementptr inbounds ([12 x i8]* @.str, i32 0, i32 0), i32 11)
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%call.i.i.i14.i.i = invoke noalias i8* @_Znwm(i32 1024)
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to label %do.body.i.i.i unwind label %lpad.body
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do.body.i.i.i: ; preds = %entry, %_ZNSt3__116allocator_traitsINS_9allocatorIcEEE9constructIccEEvRS2_PT_RKT0_.exit.i.i.i
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%lsr.iv = phi i32 [ %lsr.iv.next, %_ZNSt3__116allocator_traitsINS_9allocatorIcEEE9constructIccEEvRS2_PT_RKT0_.exit.i.i.i ], [ -1024, %entry ]
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%0 = phi i8* [ %incdec.ptr.i.i.i, %_ZNSt3__116allocator_traitsINS_9allocatorIcEEE9constructIccEEvRS2_PT_RKT0_.exit.i.i.i ], [ %call.i.i.i14.i.i, %entry ]
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%new.isnull.i.i.i.i = icmp eq i8* %0, null
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br i1 %new.isnull.i.i.i.i, label %_ZNSt3__116allocator_traitsINS_9allocatorIcEEE9constructIccEEvRS2_PT_RKT0_.exit.i.i.i, label %new.notnull.i.i.i.i
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new.notnull.i.i.i.i: ; preds = %do.body.i.i.i
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store i8 %a, i8* %0, align 1
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br label %_ZNSt3__116allocator_traitsINS_9allocatorIcEEE9constructIccEEvRS2_PT_RKT0_.exit.i.i.i
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_ZNSt3__116allocator_traitsINS_9allocatorIcEEE9constructIccEEvRS2_PT_RKT0_.exit.i.i.i: ; preds = %new.notnull.i.i.i.i, %do.body.i.i.i
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%1 = phi i8* [ null, %do.body.i.i.i ], [ %0, %new.notnull.i.i.i.i ]
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%incdec.ptr.i.i.i = getelementptr inbounds i8, i8* %1, i32 1
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%lsr.iv.next = add i32 %lsr.iv, 1
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%cmp.i16.i.i = icmp eq i32 %lsr.iv.next, 0
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br i1 %cmp.i16.i.i, label %invoke.cont, label %do.body.i.i.i
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invoke.cont: ; preds = %_ZNSt3__116allocator_traitsINS_9allocatorIcEEE9constructIccEEvRS2_PT_RKT0_.exit.i.i.i
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invoke void @_Z4foo2Pci(i8* %call.i.i.i14.i.i, i32 1024)
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to label %invoke.cont5 unwind label %lpad2
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invoke.cont5: ; preds = %invoke.cont
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%cmp.i.i.i15 = icmp eq i8* %call.i.i.i14.i.i, null
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br i1 %cmp.i.i.i15, label %invoke.cont6, label %_ZNSt3__113__vector_baseIcNS_9allocatorIcEEE5clearEv.exit.i.i.i19
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_ZNSt3__113__vector_baseIcNS_9allocatorIcEEE5clearEv.exit.i.i.i19: ; preds = %invoke.cont5
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call void @_ZdlPv(i8* %call.i.i.i14.i.i)
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br label %invoke.cont6
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invoke.cont6: ; preds = %_ZNSt3__113__vector_baseIcNS_9allocatorIcEEE5clearEv.exit.i.i.i19, %invoke.cont5
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%call10 = call %"class.std::__1::basic_string"* @_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEED1Ev(%"class.std::__1::basic_string"* %s1)
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ret void
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lpad.body: ; preds = %entry
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%2 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_sj0 to i8*)
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cleanup
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%3 = extractvalue { i8*, i32 } %2, 0
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%4 = extractvalue { i8*, i32 } %2, 1
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br label %ehcleanup
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lpad2: ; preds = %invoke.cont
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%5 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_sj0 to i8*)
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cleanup
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%6 = extractvalue { i8*, i32 } %5, 0
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%7 = extractvalue { i8*, i32 } %5, 1
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%cmp.i.i.i21 = icmp eq i8* %call.i.i.i14.i.i, null
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br i1 %cmp.i.i.i21, label %ehcleanup, label %_ZNSt3__113__vector_baseIcNS_9allocatorIcEEE5clearEv.exit.i.i.i26
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_ZNSt3__113__vector_baseIcNS_9allocatorIcEEE5clearEv.exit.i.i.i26: ; preds = %lpad2
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call void @_ZdlPv(i8* %call.i.i.i14.i.i)
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br label %ehcleanup
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ehcleanup: ; preds = %_ZNSt3__113__vector_baseIcNS_9allocatorIcEEE5clearEv.exit.i.i.i26, %lpad2, %lpad.body
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%exn.slot.0 = phi i8* [ %3, %lpad.body ], [ %6, %lpad2 ], [ %6, %_ZNSt3__113__vector_baseIcNS_9allocatorIcEEE5clearEv.exit.i.i.i26 ]
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%ehselector.slot.0 = phi i32 [ %4, %lpad.body ], [ %7, %lpad2 ], [ %7, %_ZNSt3__113__vector_baseIcNS_9allocatorIcEEE5clearEv.exit.i.i.i26 ]
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%call12 = invoke %"class.std::__1::basic_string"* @_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEED1Ev(%"class.std::__1::basic_string"* %s1)
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to label %eh.resume unwind label %terminate.lpad
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eh.resume: ; preds = %ehcleanup
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%lpad.val = insertvalue { i8*, i32 } undef, i8* %exn.slot.0, 0
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%lpad.val13 = insertvalue { i8*, i32 } %lpad.val, i32 %ehselector.slot.0, 1
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resume { i8*, i32 } %lpad.val13
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terminate.lpad: ; preds = %ehcleanup
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%8 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_sj0 to i8*)
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catch i8* null
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%9 = extractvalue { i8*, i32 } %8, 0
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call void @__clang_call_terminate(i8* %9)
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unreachable
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}
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declare void @_Z4foo2Pci(i8*, i32)
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define linkonce_odr hidden void @__clang_call_terminate(i8*) {
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%2 = tail call i8* @__cxa_begin_catch(i8* %0)
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tail call void @_ZSt9terminatev()
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unreachable
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}
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declare i8* @__cxa_begin_catch(i8*)
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declare void @_ZSt9terminatev()
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declare %"class.std::__1::basic_string"* @_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEED1Ev(%"class.std::__1::basic_string"* returned)
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declare void @_ZdlPv(i8*) #3
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declare noalias i8* @_Znwm(i32)
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declare void @_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcm(%"class.std::__1::basic_string"*, i8*, i32)
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declare void @_Unwind_SjLj_Register({ i8*, i32, [4 x i32], i8*, i8*, [5 x i8*] }*)
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declare void @_Unwind_SjLj_Unregister({ i8*, i32, [4 x i32], i8*, i8*, [5 x i8*] }*)
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declare i8* @llvm.frameaddress(i32)
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declare i8* @llvm.stacksave()
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declare void @llvm.stackrestore(i8*)
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declare i32 @llvm.eh.sjlj.setjmp(i8*)
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declare i8* @llvm.eh.sjlj.lsda()
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declare void @llvm.eh.sjlj.callsite(i32)
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declare void @llvm.eh.sjlj.functioncontext(i8*)
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