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llvm-project/llvm/test/Analysis/ScalarEvolution/sext-iv-2.ll

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-disable-output is no longer needed with -analyze. llvm-svn: 94574
2010-01-27 03:25:59 +08:00
; RUN: opt < %s -analyze -scalar-evolution | FileCheck %s
When attempting to sign-extend an addrec by interpreting the step value as unsigned, the start value and the addrec itself still need to be treated as signed. llvm-svn: 77078
2009-07-26 00:03:30 +08:00
; CHECK: %tmp3 = sext i8 %tmp2 to i32
[SCEV] Add a `scalar-evolution-print-constant-ranges' option Summary: Unused in this commit, but will be used in a subsequent change (D8142) by a FileCheck test. Reviewers: atrick Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D8143 llvm-svn: 231708
2015-03-10 05:43:39 +08:00
; CHECK: --> (sext i8 {0,+,1}<%bb1> to i32){{ U: [^ ]+ S: [^ ]+}}{{ *}}Exits: -1
When attempting to sign-extend an addrec by interpreting the step value as unsigned, the start value and the addrec itself still need to be treated as signed. llvm-svn: 77078
2009-07-26 00:03:30 +08:00
; CHECK: %tmp4 = mul i32 %tmp3, %i.02
[SCEV] Add a `scalar-evolution-print-constant-ranges' option Summary: Unused in this commit, but will be used in a subsequent change (D8142) by a FileCheck test. Reviewers: atrick Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D8143 llvm-svn: 231708
2015-03-10 05:43:39 +08:00
; CHECK: --> ((sext i8 {0,+,1}<%bb1> to i32) * {0,+,1}<%bb>){{ U: [^ ]+ S: [^ ]+}}{{ *}}Exits: {0,+,-1}<%bb>
When attempting to sign-extend an addrec by interpreting the step value as unsigned, the start value and the addrec itself still need to be treated as signed. llvm-svn: 77078
2009-07-26 00:03:30 +08:00
; These sexts are not foldable.
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64"
@table = common global [32 x [256 x i32]] zeroinitializer, align 32 ; <[32 x [256 x i32]]*> [#uses=2]
define i32 @main() nounwind {
entry:
br i1 false, label %bb5, label %bb.nph3
bb.nph3: ; preds = %entry
br label %bb
bb: ; preds = %bb4, %bb.nph3
%i.02 = phi i32 [ %tmp10, %bb4 ], [ 0, %bb.nph3 ] ; <i32> [#uses=3]
br i1 false, label %bb3, label %bb.nph
bb.nph: ; preds = %bb
br label %bb1
bb1: ; preds = %bb2, %bb.nph
%j.01 = phi i32 [ %tmp8, %bb2 ], [ 0, %bb.nph ] ; <i32> [#uses=3]
%tmp2 = trunc i32 %j.01 to i8 ; <i8> [#uses=1]
%tmp3 = sext i8 %tmp2 to i32 ; <i32> [#uses=1]
%tmp4 = mul i32 %tmp3, %i.02 ; <i32> [#uses=1]
%tmp5 = sext i32 %i.02 to i64 ; <i64> [#uses=1]
%tmp6 = sext i32 %j.01 to i64 ; <i64> [#uses=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
%tmp7 = getelementptr [32 x [256 x i32]], [32 x [256 x i32]]* @table, i64 0, i64 %tmp5, i64 %tmp6 ; <i32*> [#uses=1]
When attempting to sign-extend an addrec by interpreting the step value as unsigned, the start value and the addrec itself still need to be treated as signed. llvm-svn: 77078
2009-07-26 00:03:30 +08:00
store i32 %tmp4, i32* %tmp7, align 4
%tmp8 = add i32 %j.01, 1 ; <i32> [#uses=2]
br label %bb2
bb2: ; preds = %bb1
%phitmp1 = icmp sgt i32 %tmp8, 255 ; <i1> [#uses=1]
br i1 %phitmp1, label %bb2.bb3_crit_edge, label %bb1
bb2.bb3_crit_edge: ; preds = %bb2
br label %bb3
bb3: ; preds = %bb2.bb3_crit_edge, %bb
%tmp10 = add i32 %i.02, 1 ; <i32> [#uses=2]
br label %bb4
bb4: ; preds = %bb3
%phitmp = icmp sgt i32 %tmp10, 31 ; <i1> [#uses=1]
br i1 %phitmp, label %bb4.bb5_crit_edge, label %bb
bb4.bb5_crit_edge: ; preds = %bb4
br label %bb5
bb5: ; preds = %bb4.bb5_crit_edge, %entry
[opaque pointer type] Add textual IR support for explicit type parameter to gep operator Similar to gep (r230786) and load (r230794) changes. Similar migration script can be used to update test cases, which successfully migrated all of LLVM and Polly, but about 4 test cases needed manually changes in Clang. (this script will read the contents of stdin and massage it into stdout - wrap it in the 'apply.sh' script shown in previous commits + xargs to apply it over a large set of test cases) import fileinput import sys import re rep = re.compile(r"(getelementptr(?:\s+inbounds)?\s*\()((<\d*\s+x\s+)?([^@]*?)(|\s*addrspace\(\d+\))\s*\*(?(3)>)\s*)(?=$|%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|zeroinitializer|<|\[\[[a-zA-Z]|\{\{)", re.MULTILINE | re.DOTALL) def conv(match): line = match.group(1) line += match.group(4) line += ", " line += match.group(2) return line line = sys.stdin.read() off = 0 for match in re.finditer(rep, line): sys.stdout.write(line[off:match.start()]) sys.stdout.write(conv(match)) off = match.end() sys.stdout.write(line[off:]) llvm-svn: 232184
2015-03-14 02:20:45 +08:00
%tmp12 = load i32, i32* getelementptr ([32 x [256 x i32]], [32 x [256 x i32]]* @table, i64 0, i64 9, i64 132), align 16 ; <i32> [#uses=1]
When attempting to sign-extend an addrec by interpreting the step value as unsigned, the start value and the addrec itself still need to be treated as signed. llvm-svn: 77078
2009-07-26 00:03:30 +08:00
%tmp13 = icmp eq i32 %tmp12, -1116 ; <i1> [#uses=1]
br i1 %tmp13, label %bb7, label %bb6
bb6: ; preds = %bb5
call void @abort() noreturn nounwind
unreachable
bb7: ; preds = %bb5
br label %return
return: ; preds = %bb7
ret i32 0
}
declare void @abort() noreturn nounwind