[GHC] #1861: Uncompilable code generated
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[GHC] #1861: Uncompilable code generated
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#1861: Uncompilable code generated
----------------------+----------------------------------------------------- Reporter: guest | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 6.8.1 Severity: normal | Keywords: Testcase: | Architecture: x86 Os: MacOS X | ----------------------+----------------------------------------------------- When compiling via C the symbol Infinity is sometimes generated. {{{ main = interact $ show . (< 1e400) . read }}} Compile with {{{ ghc -O2 -fvia-C foo.hs }}} -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1861> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler _______________________________________________ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@... http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs |
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Re: [GHC] #1861: Uncompilable code generated
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#1861: Uncompilable code generated
----------------------+----------------------------------------------------- Reporter: guest | Owner: Type: bug | Status: new Priority: normal | Milestone: 6.8.2 Component: Compiler | Version: 6.8.1 Severity: normal | Resolution: Keywords: | Difficulty: Unknown Testcase: | Architecture: x86 Os: MacOS X | ----------------------+----------------------------------------------------- Changes (by igloo): * difficulty: => Unknown * milestone: => 6.8.2 Comment: Thanks for the report. -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1861#comment:1> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler _______________________________________________ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@... http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs |
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Re: [GHC] #1861: Uncompilable code generated
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#1861: Uncompilable code generated
----------------------+----------------------------------------------------- Reporter: guest | Owner: Type: bug | Status: new Priority: normal | Milestone: 6.8.2 Component: Compiler | Version: 6.8.1 Severity: normal | Resolution: Keywords: | Difficulty: Unknown Testcase: | Architecture: x86 Os: MacOS X | ----------------------+----------------------------------------------------- Comment (by igloo): I can't reproduce this on amd64/Linux or x86/Linux. Can you please attach the output of running {{{ ghc -O2 -fvia-C b.hs -tmpdir . -keep-tmp-files -v }}} as well as the temporary files (which should end up in a directory called something like `ghc16011_0/`? Thanks! -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1861#comment:2> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler _______________________________________________ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@... http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs |
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Re: [GHC] #1861: Uncompilable code generated
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#1861: Uncompilable code generated
----------------------+----------------------------------------------------- Reporter: guest | Owner: Type: bug | Status: new Priority: normal | Milestone: 6.8.3 Component: Compiler | Version: 6.8.1 Severity: normal | Resolution: Keywords: | Difficulty: Unknown Testcase: | Architecture: x86 Os: MacOS X | ----------------------+----------------------------------------------------- Changes (by igloo): * milestone: 6.8.2 => 6.8.3 -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1861#comment:3> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler _______________________________________________ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@... http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs |
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Re: [GHC] #1861: Uncompilable code generated
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#1861: Uncompilable code generated
----------------------+----------------------------------------------------- Reporter: guest | Owner: Type: bug | Status: new Priority: lowest | Milestone: 6.8.3 Component: Compiler | Version: 6.8.1 Severity: normal | Resolution: Keywords: | Difficulty: Unknown Testcase: | Architecture: x86 Os: MacOS X | ----------------------+----------------------------------------------------- Changes (by igloo): * priority: normal => lowest Comment: (waiting for response) -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1861#comment:4> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler _______________________________________________ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@... http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs |
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Re: [GHC] #1861: Uncompilable code generated
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#1861: Uncompilable code generated
----------------------+----------------------------------------------------- Reporter: guest | Owner: Type: bug | Status: new Priority: lowest | Milestone: 6.8.3 Component: Compiler | Version: 6.9 Severity: normal | Resolution: Keywords: | Difficulty: Unknown Testcase: | Architecture: x86 Os: MacOS X | ----------------------+----------------------------------------------------- Changes (by guest): * version: 6.8.1 => 6.9 Comment: The GHC optimizations have regressed (I'll send a separate report) so the program has to be changed a little to generate uncompilable code: {{{ main = interact $ show . (< (1e400 :: Double)) . read }}} -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1861#comment:5> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler _______________________________________________ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@... http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs |
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Re: [GHC] #1861: Uncompilable code generated
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#1861: Uncompilable code generated
----------------------+----------------------------------------------------- Reporter: guest | Owner: Type: bug | Status: new Priority: normal | Milestone: 6.8.3 Component: Compiler | Version: 6.9 Severity: normal | Resolution: Keywords: | Difficulty: Unknown Testcase: | Architecture: x86 Os: MacOS X | ----------------------+----------------------------------------------------- Changes (by igloo): * priority: lowest => normal Comment: OK, thanks, I can reproduce this now. -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1861#comment:6> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler _______________________________________________ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@... http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs |
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Re: [GHC] #1861: Uncompilable code generated
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#1861: Uncompilable code generated
----------------------+----------------------------------------------------- Reporter: guest | Owner: Type: bug | Status: new Priority: normal | Milestone: 6.8.3 Component: Compiler | Version: 6.9 Severity: normal | Resolution: Keywords: | Difficulty: Unknown Testcase: | Architecture: x86 Os: MacOS X | ----------------------+----------------------------------------------------- Comment (by simonpj): So the problem here is a narrow one: how does one write down the IEEE Double constant for infinity, in such a way that the C compiler understands it. Does one write "1e400" or "1e10000000" (both are too big to be represented) or is there a kosher way to do it? Or can one say "0xblablah" where that's the IEEE bit pattern for infinity? Or perhaps "1/0" would do? I don't know. Simon -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1861#comment:7> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler _______________________________________________ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@... http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs |
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Re: [GHC] #1861: Uncompilable code generated
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#1861: Uncompilable code generated
----------------------+----------------------------------------------------- Reporter: guest | Owner: Type: bug | Status: new Priority: normal | Milestone: 6.8.3 Component: Compiler | Version: 6.9 Severity: normal | Resolution: Keywords: | Difficulty: Unknown Testcase: | Architecture: x86 Os: MacOS X | ----------------------+----------------------------------------------------- Comment (by simonmar): you can use the C constant `INFINITY`, which is defined by `math.h` (which we `#include` in generated C). -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1861#comment:8> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler _______________________________________________ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@... http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs |
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Re: [GHC] #1861: Uncompilable code generated
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#1861: Uncompilable code generated
----------------------+----------------------------------------------------- Reporter: guest | Owner: simonmar Type: bug | Status: new Priority: normal | Milestone: 6.8.3 Component: Compiler | Version: 6.9 Severity: normal | Resolution: Keywords: | Difficulty: Unknown Testcase: | Architecture: x86 Os: MacOS X | ----------------------+----------------------------------------------------- Changes (by simonpj): * owner: => simonmar Comment: The problem is located at line 398 of `codeGen/PprC.hs`, which prints float/double constants in a form the C compiler understands. Two alternatives * Do what native code gen does: generate a hex constant and cast. Perhaps non-portable. * Do conditional tests to check for infinite values and `INFINITY`. Also minus-infinite and NaN need checked. In effect, this means moving the `fromRational` call in `Outputable.rational` into `PprC`. Simon M recommends the second for now. And will do! Thanks Simon -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1861#comment:9> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler _______________________________________________ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@... http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs |
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Re: [GHC] #1861: Uncompilable code generated
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#1861: Uncompilable code generated
----------------------+----------------------------------------------------- Reporter: guest | Owner: simonmar Type: bug | Status: new Priority: normal | Milestone: 6.8.3 Component: Compiler | Version: 6.9 Severity: normal | Resolution: Keywords: | Difficulty: Unknown Testcase: | Architecture: x86 Os: MacOS X | ----------------------+----------------------------------------------------- Comment (by simonmar): To merge: {{{ Mon May 12 03:38:47 PDT 2008 Simon Marlow <marlowsd@...> * FIX #1861: floating-point constants for infinity and NaN in via-C }}} -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1861#comment:10> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler _______________________________________________ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@... http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs |
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Re: [GHC] #1861: Uncompilable code generated
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#1861: Uncompilable code generated
----------------------+----------------------------------------------------- Reporter: guest | Owner: igloo Type: merge | Status: new Priority: normal | Milestone: 6.8.3 Component: Compiler | Version: 6.9 Severity: normal | Resolution: Keywords: | Difficulty: Unknown Testcase: | Architecture: x86 Os: MacOS X | ----------------------+----------------------------------------------------- Changes (by simonmar): * owner: simonmar => igloo * type: bug => merge -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1861#comment:11> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler _______________________________________________ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@... http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs |
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Re: [GHC] #1861: Uncompilable code generated
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#1861: Uncompilable code generated
----------------------+----------------------------------------------------- Reporter: guest | Owner: igloo Type: merge | Status: closed Priority: normal | Milestone: 6.8.3 Component: Compiler | Version: 6.9 Severity: normal | Resolution: fixed Keywords: | Difficulty: Unknown Testcase: | Architecture: x86 Os: MacOS X | ----------------------+----------------------------------------------------- Changes (by igloo): * status: new => closed * resolution: => fixed Comment: Merged -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1861#comment:12> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler _______________________________________________ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@... http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs |
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