2011-09-03 01:36:14 +08:00
|
|
|
; RUN: opt < %s -S -indvars -loop-unroll -verify-loop-info | FileCheck %s
|
2011-08-12 07:36:16 +08:00
|
|
|
;
|
|
|
|
|
; Unit tests for loop unrolling using ScalarEvolution to compute trip counts.
|
|
|
|
|
;
|
|
|
|
|
; Indvars is run first to generate an "old" SCEV result. Some unit
|
|
|
|
|
; tests may check that SCEV is properly invalidated between passes.
|
|
|
|
|
|
|
|
|
|
; Completely unroll loops without a canonical IV.
|
|
|
|
|
;
|
2013-07-14 09:42:54 +08:00
|
|
|
; CHECK-LABEL: @sansCanonical(
|
2011-08-12 07:36:16 +08:00
|
|
|
; CHECK-NOT: phi
|
|
|
|
|
; CHECK-NOT: icmp
|
|
|
|
|
; CHECK: ret
|
|
|
|
|
define i32 @sansCanonical(i32* %base) nounwind {
|
|
|
|
|
entry:
|
|
|
|
|
br label %while.body
|
|
|
|
|
|
|
|
|
|
while.body:
|
|
|
|
|
%iv = phi i64 [ 10, %entry ], [ %iv.next, %while.body ]
|
|
|
|
|
%sum = phi i32 [ 0, %entry ], [ %sum.next, %while.body ]
|
|
|
|
|
%iv.next = add i64 %iv, -1
|
[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
llvm-svn: 230786
2015-02-28 03:29:02 +08:00
|
|
|
%adr = getelementptr inbounds i32, i32* %base, i64 %iv.next
|
2015-02-28 05:17:42 +08:00
|
|
|
%tmp = load i32, i32* %adr, align 8
|
2011-08-12 07:36:16 +08:00
|
|
|
%sum.next = add i32 %sum, %tmp
|
|
|
|
|
%iv.narrow = trunc i64 %iv.next to i32
|
|
|
|
|
%cmp.i65 = icmp sgt i32 %iv.narrow, 0
|
|
|
|
|
br i1 %cmp.i65, label %while.body, label %exit
|
|
|
|
|
|
|
|
|
|
exit:
|
|
|
|
|
ret i32 %sum
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
; SCEV unrolling properly handles loops with multiple exits. In this
|
|
|
|
|
; case, the computed trip count based on a canonical IV is *not* for a
|
|
|
|
|
; latch block. Canonical unrolling incorrectly unrolls it, but SCEV
|
|
|
|
|
; unrolling does not.
|
|
|
|
|
;
|
2013-07-14 09:42:54 +08:00
|
|
|
; CHECK-LABEL: @earlyLoopTest(
|
2011-08-12 07:36:16 +08:00
|
|
|
; CHECK: tail:
|
|
|
|
|
; CHECK-NOT: br
|
|
|
|
|
; CHECK: br i1 %cmp2, label %loop, label %exit2
|
|
|
|
|
define i64 @earlyLoopTest(i64* %base) nounwind {
|
|
|
|
|
entry:
|
|
|
|
|
br label %loop
|
|
|
|
|
|
|
|
|
|
loop:
|
|
|
|
|
%iv = phi i64 [ 0, %entry ], [ %inc, %tail ]
|
|
|
|
|
%s = phi i64 [ 0, %entry ], [ %s.next, %tail ]
|
[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
llvm-svn: 230786
2015-02-28 03:29:02 +08:00
|
|
|
%adr = getelementptr i64, i64* %base, i64 %iv
|
2015-02-28 05:17:42 +08:00
|
|
|
%val = load i64, i64* %adr
|
2011-08-12 07:36:16 +08:00
|
|
|
%s.next = add i64 %s, %val
|
|
|
|
|
%inc = add i64 %iv, 1
|
|
|
|
|
%cmp = icmp ne i64 %inc, 4
|
|
|
|
|
br i1 %cmp, label %tail, label %exit1
|
|
|
|
|
|
|
|
|
|
tail:
|
|
|
|
|
%cmp2 = icmp ne i64 %val, 0
|
|
|
|
|
br i1 %cmp2, label %loop, label %exit2
|
|
|
|
|
|
|
|
|
|
exit1:
|
|
|
|
|
ret i64 %s
|
|
|
|
|
|
|
|
|
|
exit2:
|
|
|
|
|
ret i64 %s.next
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
; SCEV properly unrolls multi-exit loops.
|
|
|
|
|
;
|
2013-07-14 09:42:54 +08:00
|
|
|
; CHECK-LABEL: @multiExit(
|
[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
llvm-svn: 230786
2015-02-28 03:29:02 +08:00
|
|
|
; CHECK: getelementptr i32, i32* %base, i32 10
|
2015-02-28 05:17:42 +08:00
|
|
|
; CHECK-NEXT: load i32, i32*
|
2014-10-11 01:39:11 +08:00
|
|
|
; CHECK: br i1 false, label %l2.10, label %exit1
|
|
|
|
|
; CHECK: l2.10:
|
|
|
|
|
; CHECK-NOT: br
|
|
|
|
|
; CHECK: ret i32
|
2011-08-12 07:36:16 +08:00
|
|
|
define i32 @multiExit(i32* %base) nounwind {
|
|
|
|
|
entry:
|
|
|
|
|
br label %l1
|
|
|
|
|
l1:
|
|
|
|
|
%iv1 = phi i32 [ 0, %entry ], [ %inc1, %l2 ]
|
|
|
|
|
%iv2 = phi i32 [ 0, %entry ], [ %inc2, %l2 ]
|
|
|
|
|
%inc1 = add i32 %iv1, 1
|
|
|
|
|
%inc2 = add i32 %iv2, 1
|
[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
llvm-svn: 230786
2015-02-28 03:29:02 +08:00
|
|
|
%adr = getelementptr i32, i32* %base, i32 %iv1
|
2015-02-28 05:17:42 +08:00
|
|
|
%val = load i32, i32* %adr
|
2011-08-12 07:36:16 +08:00
|
|
|
%cmp1 = icmp slt i32 %iv1, 5
|
|
|
|
|
br i1 %cmp1, label %l2, label %exit1
|
|
|
|
|
l2:
|
|
|
|
|
%cmp2 = icmp slt i32 %iv2, 10
|
|
|
|
|
br i1 %cmp2, label %l1, label %exit2
|
|
|
|
|
exit1:
|
|
|
|
|
ret i32 1
|
|
|
|
|
exit2:
|
|
|
|
|
ret i32 %val
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
; SCEV should not unroll a multi-exit loops unless the latch block has
|
|
|
|
|
; a known trip count, regardless of the early exit trip counts. The
|
|
|
|
|
; LoopUnroll utility uses this assumption to optimize the latch
|
|
|
|
|
; block's branch.
|
|
|
|
|
;
|
2013-07-14 09:42:54 +08:00
|
|
|
; CHECK-LABEL: @multiExitIncomplete(
|
2011-08-12 07:36:16 +08:00
|
|
|
; CHECK: l3:
|
|
|
|
|
; CHECK-NOT: br
|
|
|
|
|
; CHECK: br i1 %cmp3, label %l1, label %exit3
|
|
|
|
|
define i32 @multiExitIncomplete(i32* %base) nounwind {
|
|
|
|
|
entry:
|
|
|
|
|
br label %l1
|
|
|
|
|
l1:
|
|
|
|
|
%iv1 = phi i32 [ 0, %entry ], [ %inc1, %l3 ]
|
|
|
|
|
%iv2 = phi i32 [ 0, %entry ], [ %inc2, %l3 ]
|
|
|
|
|
%inc1 = add i32 %iv1, 1
|
|
|
|
|
%inc2 = add i32 %iv2, 1
|
[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
llvm-svn: 230786
2015-02-28 03:29:02 +08:00
|
|
|
%adr = getelementptr i32, i32* %base, i32 %iv1
|
2015-02-28 05:17:42 +08:00
|
|
|
%val = load i32, i32* %adr
|
2011-08-12 07:36:16 +08:00
|
|
|
%cmp1 = icmp slt i32 %iv1, 5
|
|
|
|
|
br i1 %cmp1, label %l2, label %exit1
|
|
|
|
|
l2:
|
|
|
|
|
%cmp2 = icmp slt i32 %iv2, 10
|
|
|
|
|
br i1 %cmp2, label %l3, label %exit2
|
|
|
|
|
l3:
|
|
|
|
|
%cmp3 = icmp ne i32 %val, 0
|
|
|
|
|
br i1 %cmp3, label %l1, label %exit3
|
|
|
|
|
|
|
|
|
|
exit1:
|
|
|
|
|
ret i32 1
|
|
|
|
|
exit2:
|
|
|
|
|
ret i32 2
|
|
|
|
|
exit3:
|
|
|
|
|
ret i32 3
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
; When loop unroll merges a loop exit with one of its parent loop's
|
|
|
|
|
; exits, SCEV must forget its ExitNotTaken info.
|
|
|
|
|
;
|
2013-07-14 09:42:54 +08:00
|
|
|
; CHECK-LABEL: @nestedUnroll(
|
2011-08-12 07:36:16 +08:00
|
|
|
; CHECK-NOT: br i1
|
|
|
|
|
; CHECK: for.body87:
|
|
|
|
|
define void @nestedUnroll() nounwind {
|
|
|
|
|
entry:
|
|
|
|
|
br label %for.inc
|
|
|
|
|
|
|
|
|
|
for.inc:
|
|
|
|
|
br i1 false, label %for.inc, label %for.body38.preheader
|
|
|
|
|
|
|
|
|
|
for.body38.preheader:
|
|
|
|
|
br label %for.body38
|
|
|
|
|
|
|
|
|
|
for.body38:
|
|
|
|
|
%i.113 = phi i32 [ %inc76, %for.inc74 ], [ 0, %for.body38.preheader ]
|
|
|
|
|
%mul48 = mul nsw i32 %i.113, 6
|
|
|
|
|
br label %for.body43
|
|
|
|
|
|
|
|
|
|
for.body43:
|
|
|
|
|
%j.011 = phi i32 [ 0, %for.body38 ], [ %inc72, %for.body43 ]
|
|
|
|
|
%add49 = add nsw i32 %j.011, %mul48
|
|
|
|
|
%sh_prom50 = zext i32 %add49 to i64
|
|
|
|
|
%inc72 = add nsw i32 %j.011, 1
|
|
|
|
|
br i1 false, label %for.body43, label %for.inc74
|
|
|
|
|
|
|
|
|
|
for.inc74:
|
|
|
|
|
%inc76 = add nsw i32 %i.113, 1
|
|
|
|
|
br i1 false, label %for.body38, label %for.body87.preheader
|
|
|
|
|
|
|
|
|
|
for.body87.preheader:
|
|
|
|
|
br label %for.body87
|
|
|
|
|
|
|
|
|
|
for.body87:
|
|
|
|
|
br label %for.body87
|
|
|
|
|
}
|
|
|
|
|
|
2013-06-01 07:34:46 +08:00
|
|
|
; PR16130: clang produces incorrect code with loop/expression at -O2
|
|
|
|
|
; rdar:14036816 loop-unroll makes assumptions about undefined behavior
|
|
|
|
|
;
|
|
|
|
|
; The loop latch is assumed to exit after the first iteration because
|
|
|
|
|
; of the induction variable's NSW flag. However, the loop latch's
|
|
|
|
|
; equality test is skipped and the loop exits after the second
|
|
|
|
|
; iteration via the early exit. So loop unrolling cannot assume that
|
|
|
|
|
; the loop latch's exit count of zero is an upper bound on the number
|
|
|
|
|
; of iterations.
|
|
|
|
|
;
|
2013-07-14 09:42:54 +08:00
|
|
|
; CHECK-LABEL: @nsw_latch(
|
2013-06-01 07:34:46 +08:00
|
|
|
; CHECK: for.body:
|
|
|
|
|
; CHECK: %b.03 = phi i32 [ 0, %entry ], [ %add, %for.cond ]
|
|
|
|
|
; CHECK: return:
|
2015-11-03 15:14:39 +08:00
|
|
|
; CHECK: %b.03.lcssa = phi i32 [ %b.03, %for.body ], [ %b.03, %for.cond ]
|
2013-06-01 07:34:46 +08:00
|
|
|
define void @nsw_latch(i32* %a) nounwind {
|
|
|
|
|
entry:
|
|
|
|
|
br label %for.body
|
|
|
|
|
|
|
|
|
|
for.body: ; preds = %for.cond, %entry
|
|
|
|
|
%b.03 = phi i32 [ 0, %entry ], [ %add, %for.cond ]
|
|
|
|
|
%tobool = icmp eq i32 %b.03, 0
|
|
|
|
|
%add = add nsw i32 %b.03, 8
|
|
|
|
|
br i1 %tobool, label %for.cond, label %return
|
|
|
|
|
|
|
|
|
|
for.cond: ; preds = %for.body
|
|
|
|
|
%cmp = icmp eq i32 %add, 13
|
|
|
|
|
br i1 %cmp, label %return, label %for.body
|
|
|
|
|
|
|
|
|
|
return: ; preds = %for.body, %for.cond
|
|
|
|
|
%b.03.lcssa = phi i32 [ %b.03, %for.body ], [ %b.03, %for.cond ]
|
|
|
|
|
%retval.0 = phi i32 [ 1, %for.body ], [ 0, %for.cond ]
|
|
|
|
|
store i32 %b.03.lcssa, i32* %a, align 4
|
|
|
|
|
ret void
|
|
|
|
|
}
|