digitalmars.D.bugs - [Issue 5708] New: Error in std.typecons when -release, -inline, and -noboundscheck are all enabled
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http://d.puremagic.com/issues/show_bug.cgi?id=5708
Summary: Error in std.typecons when -release, -inline, and
-noboundscheck are all enabled
Product: D
Version: unspecified
Platform: All
OS/Version: All
Status: NEW
Severity: major
Priority: P2
Component: DMD
AssignedTo: nobody puremagic.com
ReportedBy: jmdavisProg gmx.com
--- Comment #0 from Jonathan M Davis <jmdavisProg gmx.com> 2011-03-05 17:00:59
PST ---
From Tom on D.Learn (and I've confirmed it on Linux with both -m32 and -m64):
Minimal test case:
import std.stdio;
import std.conv;
int main(string[] args) {
int[string] t;
writeln(text(t));
return 0;
}
Tried:
dmd -O -release -inline -noboundscheck -c -Isrc src\main.d -> ERROR
dmd -release -inline -noboundscheck -c -Isrc src\main.d -> ERROR
dmd -O -inline -noboundscheck -c -Isrc src\main.d -> OK
dmd -O -release -noboundscheck -c -Isrc src\main.d -> OK
dmd -O -release -inline -c -Isrc src\main.d -> OK
Where ERROR is:
E:\d\dmd2\windows\bin\..\..\src\phobos\std\typecons.d(364): expression
expected, not 'EOF'
E:\d\dmd2\windows\bin\..\..\src\phobos\std\typecons.d(364): found 'EOF'
when expecting ']'
E:\d\dmd2\windows\bin\..\..\src\phobos\std\typecons.d(364): found 'EOF'
when expecting ')' following template argument list
E:\d\dmd2\windows\bin\..\..\src\phobos\std\typecons.d(364): found 'EOF'
when expecting ']'
E:\d\dmd2\windows\bin\..\..\src\phobos\std\typecons.d(364): found 'EOF'
when expecting ')' following template argument list
E:\d\dmd2\windows\bin\..\..\src\phobos\std\typecons.d(364): found 'EOF'
when expecting ']'
E:\d\dmd2\windows\bin\..\..\src\phobos\std\typecons.d(364): found 'EOF'
when expecting ')' following template argument list
E:\d\dmd2\windows\bin\..\..\src\phobos\std\typecons.d(364): found 'EOF'
when expecting ']'
E:\d\dmd2\windows\bin\..\..\src\phobos\std\typecons.d(364): found 'EOF'
when expecting ')' following template argument list
E:\d\dmd2\windows\bin\..\..\src\phobos\std\typecons.d(364): found 'EOF'
when expecting ']'
E:\d\dmd2\windows\bin\..\..\src\phobos\std\typecons.d(364): found 'EOF'
when expecting ')' following template argument list
E:\d\dmd2\windows\bin\..\..\src\phobos\std\typecons.d(364): found 'EOF'
when expecting ']'
E:\d\dmd2\windows\bin\..\..\src\phobos\std\typecons.d(364): found 'EOF'
when expecting ')' following template argument list
E:\d\dmd2\windows\bin\..\..\src\phobos\std\typecons.d(364): found 'EOF'
when expecting ']'
E:\d\dmd2\windows\bin\..\..\src\phobos\std\typecons.d(364): found 'EOF'
when expecting ')' following template argument list
E:\d\dmd2\windows\bin\..\..\src\phobos\std\typecons.d(364): found 'EOF'
when expecting ']'
E:\d\dmd2\windows\bin\..\..\src\phobos\std\typecons.d(364): found 'EOF'
when expecting ')' following template argument list
E:\d\dmd2\windows\bin\..\..\src\phobos\std\typecons.d(364): found 'EOF'
when expecting ']'
E:\d\dmd2\windows\bin\..\..\src\phobos\std\typecons.d(364): found 'EOF'
when expecting ')' following template argument list
E:\d\dmd2\windows\bin\..\..\src\phobos\std\typecons.d(364): found 'EOF'
when expecting ']'
E:\d\dmd2\windows\bin\..\..\src\phobos\std\typecons.d(364): found 'EOF'
when expecting ')' following template argument list
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bearophile_hugs eml.cc changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |bearophile_hugs eml.cc
--- Comment #1 from bearophile_hugs eml.cc 2011-03-05 17:19:25 PST ---
Problem confirmed on Windows, DMD 2.052, compiled with:
-inline -release -noboundscheck
A bit reduced code:
import std.conv: to;
void main() {
int[string] aa;
to!string(aa);
}
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--- Comment #2 from bearophile_hugs eml.cc 2011-03-05 17:39:42 PST ---
More reduction:
import std.conv: to;
void main() {
int[int] aa;
foreach (v; aa)
to!string("");
}
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http://d.puremagic.com/issues/show_bug.cgi?id=5708 --- Comment #3 from Jonathan M Davis <jmdavisProg gmx.com> 2011-03-05 17:59:42 PST --- Well, given the error, it involves creating a tuple, which none of the code here is doing directly, so in theory, it should be possible to reduce it to code which creates a tuple, but I don't know how you'd do that in this case. I assume that v in the foreach loop is a tuple of the key and value, and that's probably where the problem is, but I don't use associative arrays all that often, and when I do, I rarely iterate over them, so I'm not sure. Regardless, if you're really trying to reuduce it, in theory, you should be able to reduce it down to the creation of a tuple with a particular set of types. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
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http://d.puremagic.com/issues/show_bug.cgi?id=5708 --- Comment #4 from bearophile_hugs eml.cc 2011-03-05 18:41:43 PST --- (In reply to comment #3)I assume that v in the foreach loop is a tuple of the key and value,It's just a value, so it's an int. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Mar 05 2011
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kennytm gmail.com changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |kennytm gmail.com
--- Comment #5 from kennytm gmail.com 2011-03-06 00:43:01 PST ---
It has nothing to do with the AA. Also, -inline alone is actually enough to
trigger this bug. This seems to be a problem in string pooling in compile time.
import std.conv;
import std.typecons;
void ik(T,U)(T t, U u) {
Tuple!(T,U) x;
}
pragma(msg, ik!(string,string));
void main() {
() { to!string("lit"); } ();
}
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--- Comment #6 from kennytm gmail.com 2011-03-06 00:53:53 PST ---
Further removing the Tuple:
import std.conv;
void ik(T)(T) {
enum a = to!string("foo") ~ to!string("bar");
static assert(a == "foobar");
}
alias ik!int ik2;
void main() {
cast(void) () { to!string("lit"); };
}
As of 2.052 it asserts:
~/Downloads:911$ dmd -inline y.d
y.d(5): Error: static assert ("foofoo" == "foobar") is false
y.d(7): instantiated from here: ik!(int)
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--- Comment #7 from kennytm gmail.com 2011-03-06 01:02:07 PST ---
Further removing all Phobos dependency:
string b(string s) { return s; }
string a(string s) { return b(s); }
void ik(T)(T) {
enum p = a("foo");
enum q = a("bar");
static assert(q == "bar");
}
alias ik!int ik2;
void main() {
cast(void) () { a("lit"); };
}
Currently asserts:
y.d(7): Error: static assert ("foo" == "bar") is false
y.d(9): instantiated from here: ik!(int)
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Mar 06 2011
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Don <clugdbug yahoo.com.au> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |clugdbug yahoo.com.au
Summary|Error in std.typecons when |Incorrect string constant
|-release, -inline, and |folding with -inline
|-noboundscheck are all |
|enabled |
Severity|major |critical
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Mar 15 2011
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Nick Sabalausky <cbkbbejeap mailinator.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |cbkbbejeap mailinator.com
--- Comment #8 from Nick Sabalausky <cbkbbejeap mailinator.com> 2011-04-08
03:33:16 PDT ---
Don's still-in-progress CTFE overhaul seems to fix this:
https://github.com/donc/dmd/tree/ctfemem
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Apr 08 2011
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Don <clugdbug yahoo.com.au> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
--- Comment #9 from Don <clugdbug yahoo.com.au> 2011-04-08 21:22:35 PDT ---
(In reply to comment #8)
Don's still-in-progress CTFE overhaul seems to fix this:
https://github.com/donc/dmd/tree/ctfemem
Yes, it fixes almost all CTFE bugs involving arrays.
Fixed.
D1:
https://github.com/D-Programming-Language/dmd/commit/ef2a0f1da10331c4de102ca3e029ea1c1c1a46bf
D2:
https://github.com/D-Programming-Language/dmd/commit/0219a5f0dcc88076759a4c472582954d0fb804b0
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Jimmy Cao <jcao219 gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jcao219 gmail.com
--- Comment #10 from Jimmy Cao <jcao219 gmail.com> 2011-05-29 19:02:16 PDT ---
It doesn't seem like this is fixed in dmd 2.053, but it should be according to
the changelog.
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May 29 2011
http://d.puremagic.com/issues/show_bug.cgi?id=5708 --- Comment #11 from Don <clugdbug yahoo.com.au> 2011-05-29 21:19:24 PDT --- (In reply to comment #10)It doesn't seem like this is fixed in dmd 2.053, but it should be according to the changelog.Can you describe what's failing? The test in comment 7 works for me. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
May 29 2011
http://d.puremagic.com/issues/show_bug.cgi?id=5708 --- Comment #12 from Jimmy Cao <jcao219 gmail.com> 2011-05-29 21:31:41 PDT --- The test in comment 7 asserts for me. I'm using dmd 2.053 on Windows. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
May 29 2011
http://d.puremagic.com/issues/show_bug.cgi?id=5708 --- Comment #13 from Jimmy Cao <jcao219 gmail.com> 2011-05-29 22:32:24 PDT --- It doesn't work on Fedora 15 either. I'm using dmd 2.053 directly from the zip file on the digitalmars site (for both Fedora 15 and Windows). Don, is your dmd built from source? Maybe there's a difference between mine and yours. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
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Don <clugdbug yahoo.com.au> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|FIXED |
--- Comment #14 from Don <clugdbug yahoo.com.au> 2011-05-30 07:54:25 PDT ---
I think there was something wrong with that test case, it wasn't instantiating
the template. Here's a reduced test case:
string b(string s) { return s; }
string a(string s) { return b(s); }
void bug5708() {
void m() { a("lit"); }
static assert(a("foo") == "foo");
static assert(a("bar") == "bar");
}
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May 30 2011
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Don <clugdbug yahoo.com.au> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |RESOLVED
Resolution| |FIXED
Summary|Incorrect string constant |[CTFE] Incorrect string
|folding with -inline |constant folding with
| |-inline
--- Comment #15 from Don <clugdbug yahoo.com.au> 2011-06-26 14:56:40 PDT ---
It was accidentally fixed in this commit:
6072 - [CTFE] Regression(git master): Cannot declare variable inside an 'if'
condition
which actually fixed the treatment of comma expressions in CTFE.
https://github.com/D-Programming-Language/dmd/commit/1bcae90e09f5eb6988fcd6df4309a137c9901084
I'm adding this to the test suite so it stays fixed.
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