llvm/test/CodeGen/X86/2009-07-20-CoalescerBug.ll
David Blaikie 198d8baafb [opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction
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
2015-02-27 19:29:02 +00:00

166 lines
6.1 KiB
LLVM

; RUN: llc < %s -mtriple=x86_64-apple-darwin10
; PR4587
; rdar://7072590
%struct.re_pattern_buffer = type <{ i8*, i64, i64, i64, i8*, i64, i64, i8, i8, i8, i8, i8, i8, i8, i8 }>
define fastcc i32 @regex_compile(i8* %pattern, i64 %size, i64 %syntax, %struct.re_pattern_buffer* nocapture %bufp) nounwind ssp {
entry:
br i1 undef, label %return, label %if.end
if.end: ; preds = %entry
%tmp35 = getelementptr %struct.re_pattern_buffer, %struct.re_pattern_buffer* %bufp, i64 0, i32 3 ; <i64*> [#uses=1]
store i64 %syntax, i64* %tmp35
store i32 undef, i32* undef
br i1 undef, label %if.then66, label %if.end102
if.then66: ; preds = %if.end
br i1 false, label %if.else, label %if.then70
if.then70: ; preds = %if.then66
%call74 = call i8* @xrealloc(i8* undef, i64 32) nounwind ssp ; <i8*> [#uses=0]
unreachable
if.else: ; preds = %if.then66
br i1 false, label %do.body86, label %if.end99
do.body86: ; preds = %if.else
br i1 false, label %do.end, label %if.then90
if.then90: ; preds = %do.body86
unreachable
do.end: ; preds = %do.body86
ret i32 12
if.end99: ; preds = %if.else
br label %if.end102
if.end102: ; preds = %if.end99, %if.end
br label %while.body
while.body: ; preds = %if.end1126, %sw.bb532, %while.body, %if.end102
%laststart.2 = phi i8* [ null, %if.end102 ], [ %laststart.7.ph, %if.end1126 ], [ %laststart.2, %sw.bb532 ], [ %laststart.2, %while.body ] ; <i8*> [#uses=6]
%b.1 = phi i8* [ undef, %if.end102 ], [ %ctg29688, %if.end1126 ], [ %b.1, %sw.bb532 ], [ %b.1, %while.body ] ; <i8*> [#uses=5]
br i1 undef, label %while.body, label %if.end127
if.end127: ; preds = %while.body
switch i32 undef, label %sw.bb532 [
i32 123, label %handle_interval
i32 92, label %do.body3527
]
sw.bb532: ; preds = %if.end127
br i1 undef, label %while.body, label %if.end808
if.end808: ; preds = %sw.bb532
br i1 undef, label %while.cond1267.preheader, label %if.then811
while.cond1267.preheader: ; preds = %if.end808
br i1 false, label %return, label %if.end1294
if.then811: ; preds = %if.end808
%call817 = call fastcc i8* @skip_one_char(i8* %laststart.2) ssp ; <i8*> [#uses=0]
br i1 undef, label %cond.end834, label %lor.lhs.false827
lor.lhs.false827: ; preds = %if.then811
br label %cond.end834
cond.end834: ; preds = %lor.lhs.false827, %if.then811
br i1 undef, label %land.lhs.true838, label %while.cond979.preheader
land.lhs.true838: ; preds = %cond.end834
br i1 undef, label %if.then842, label %while.cond979.preheader
if.then842: ; preds = %land.lhs.true838
%conv851 = trunc i64 undef to i32 ; <i32> [#uses=1]
br label %while.cond979.preheader
while.cond979.preheader: ; preds = %if.then842, %land.lhs.true838, %cond.end834
%startoffset.0.ph = phi i32 [ 0, %cond.end834 ], [ 0, %land.lhs.true838 ], [ %conv851, %if.then842 ] ; <i32> [#uses=2]
%laststart.7.ph = phi i8* [ %laststart.2, %cond.end834 ], [ %laststart.2, %land.lhs.true838 ], [ %laststart.2, %if.then842 ] ; <i8*> [#uses=3]
%b.4.ph = phi i8* [ %b.1, %cond.end834 ], [ %b.1, %land.lhs.true838 ], [ %b.1, %if.then842 ] ; <i8*> [#uses=3]
%ctg29688 = getelementptr i8, i8* %b.4.ph, i64 6 ; <i8*> [#uses=1]
br label %while.cond979
while.cond979: ; preds = %if.end1006, %while.cond979.preheader
%cmp991 = icmp ugt i64 undef, 0 ; <i1> [#uses=1]
br i1 %cmp991, label %do.body994, label %while.end1088
do.body994: ; preds = %while.cond979
br i1 undef, label %return, label %if.end1006
if.end1006: ; preds = %do.body994
%cmp1014 = icmp ugt i64 undef, 32768 ; <i1> [#uses=1]
%storemerge10953 = select i1 %cmp1014, i64 32768, i64 undef ; <i64> [#uses=1]
store i64 %storemerge10953, i64* undef
br i1 false, label %return, label %while.cond979
while.end1088: ; preds = %while.cond979
br i1 undef, label %if.then1091, label %if.else1101
if.then1091: ; preds = %while.end1088
store i8 undef, i8* undef
%idx.ext1132.pre = zext i32 %startoffset.0.ph to i64 ; <i64> [#uses=1]
%add.ptr1133.pre = getelementptr i8, i8* %laststart.7.ph, i64 %idx.ext1132.pre ; <i8*> [#uses=1]
%sub.ptr.lhs.cast1135.pre = ptrtoint i8* %add.ptr1133.pre to i64 ; <i64> [#uses=1]
br label %if.end1126
if.else1101: ; preds = %while.end1088
%cond1109 = select i1 undef, i32 18, i32 14 ; <i32> [#uses=1]
%idx.ext1112 = zext i32 %startoffset.0.ph to i64 ; <i64> [#uses=1]
%add.ptr1113 = getelementptr i8, i8* %laststart.7.ph, i64 %idx.ext1112 ; <i8*> [#uses=2]
%sub.ptr.rhs.cast1121 = ptrtoint i8* %add.ptr1113 to i64 ; <i64> [#uses=1]
call fastcc void @insert_op1(i32 %cond1109, i8* %add.ptr1113, i32 undef, i8* %b.4.ph) ssp
br label %if.end1126
if.end1126: ; preds = %if.else1101, %if.then1091
%sub.ptr.lhs.cast1135.pre-phi = phi i64 [ %sub.ptr.rhs.cast1121, %if.else1101 ], [ %sub.ptr.lhs.cast1135.pre, %if.then1091 ] ; <i64> [#uses=1]
%add.ptr1128 = getelementptr i8, i8* %b.4.ph, i64 3 ; <i8*> [#uses=1]
%sub.ptr.rhs.cast1136 = ptrtoint i8* %add.ptr1128 to i64 ; <i64> [#uses=1]
%sub.ptr.sub1137 = sub i64 %sub.ptr.lhs.cast1135.pre-phi, %sub.ptr.rhs.cast1136 ; <i64> [#uses=1]
%sub.ptr.sub11378527 = trunc i64 %sub.ptr.sub1137 to i32 ; <i32> [#uses=1]
%conv1139 = add i32 %sub.ptr.sub11378527, -3 ; <i32> [#uses=1]
store i8 undef, i8* undef
%shr10.i8599 = lshr i32 %conv1139, 8 ; <i32> [#uses=1]
%conv6.i8600 = trunc i32 %shr10.i8599 to i8 ; <i8> [#uses=1]
store i8 %conv6.i8600, i8* undef
br label %while.body
if.end1294: ; preds = %while.cond1267.preheader
ret i32 12
do.body3527: ; preds = %if.end127
br i1 undef, label %do.end3536, label %if.then3531
if.then3531: ; preds = %do.body3527
unreachable
do.end3536: ; preds = %do.body3527
ret i32 5
handle_interval: ; preds = %if.end127
br i1 undef, label %do.body4547, label %cond.false4583
do.body4547: ; preds = %handle_interval
br i1 undef, label %do.end4556, label %if.then4551
if.then4551: ; preds = %do.body4547
unreachable
do.end4556: ; preds = %do.body4547
ret i32 9
cond.false4583: ; preds = %handle_interval
unreachable
return: ; preds = %if.end1006, %do.body994, %while.cond1267.preheader, %entry
ret i32 undef
}
declare i8* @xrealloc(i8*, i64) ssp
declare fastcc i8* @skip_one_char(i8*) nounwind readonly ssp
declare fastcc void @insert_op1(i32, i8*, i32, i8*) nounwind ssp