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May 07, 2012 [Issue 8060] New: xmmstore cannot allocate store for optimized operation that uses int and floats | ||||
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http://d.puremagic.com/issues/show_bug.cgi?id=8060 Summary: xmmstore cannot allocate store for optimized operation that uses int and floats Product: D Version: D1 & D2 Platform: x86_64 OS/Version: Linux Status: NEW Severity: normal Priority: P2 Component: DMD AssignedTo: nobody@puremagic.com ReportedBy: fawzi@gmx.ch --- Comment #0 from Fawzi Mohamed <fawzi@gmx.ch> 2012-05-07 13:51:45 PDT --- float invSqrt(float x) { union fi { float f; int i; } fi v; float xhalf = 0.5f * x; v.f = x; v.i = 0x5f375a86 - (v.i >> 1); float y = x * v.f; float z = y*(1.5f - xhalf * y * y); return z; } or float invSqrt(float x) { float xhalf = 0.5f * x; int i = *cast(int*)&x; i = 0x5f375a86 - (i >> 1); x = *cast(float*)&i; x = x*(1.5f - xhalf * x * x); return x; } fails with error tym = xa Internal error: ../ztc/cgxmm.c 567 when compiled with dmd 1.074 or 2.059 with -O -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- |
May 07, 2012 [Issue 8060] xmmstore cannot allocate store for optimized operation that uses int and floats | ||||
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Posted in reply to Fawzi Mohamed | http://d.puremagic.com/issues/show_bug.cgi?id=8060 --- Comment #1 from Fawzi Mohamed <fawzi@gmx.ch> 2012-05-07 13:54:15 PDT --- well probably the optimizer should not expect such a thing to be possible. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- |
May 08, 2012 [Issue 8060] xmmstore cannot allocate store for optimized operation that uses int and floats | ||||
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Posted in reply to Fawzi Mohamed | http://d.puremagic.com/issues/show_bug.cgi?id=8060 Fawzi Mohamed <fawzi@gmx.ch> changed: What |Removed |Added ---------------------------------------------------------------------------- Severity|normal |regression -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- |
May 14, 2012 [Issue 8060] xmmstore cannot allocate store for optimized operation that uses int and floats | ||||
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Posted in reply to Fawzi Mohamed | http://d.puremagic.com/issues/show_bug.cgi?id=8060 Don <clugdbug@yahoo.com.au> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |clugdbug@yahoo.com.au --- Comment #2 from Don <clugdbug@yahoo.com.au> 2012-05-14 00:59:21 PDT --- Reduced test case. The float needs to be a parameter (not a local variable). float bug8060(float x) { int i = *cast(int*)&x; ++i; return *cast(float*)&i; } -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- |
May 19, 2012 [Issue 8060] xmmstore cannot allocate store for optimized operation that uses int and floats | ||||
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Posted in reply to Fawzi Mohamed | http://d.puremagic.com/issues/show_bug.cgi?id=8060 --- Comment #4 from github-bugzilla@puremagic.com 2012-05-18 23:03:08 PDT --- Commit pushed to dmd-1.x at https://github.com/D-Programming-Language/dmd https://github.com/D-Programming-Language/dmd/commit/cb946cd258a186f09cbaa303d1ded96a8ebb095d fix Issue 8060 - xmmstore cannot allocate store for optimized operation that uses int and floats -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- |
May 19, 2012 [Issue 8060] xmmstore cannot allocate store for optimized operation that uses int and floats | ||||
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Posted in reply to Fawzi Mohamed | http://d.puremagic.com/issues/show_bug.cgi?id=8060 Walter Bright <bugzilla@digitalmars.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED CC| |bugzilla@digitalmars.com Resolution| |FIXED -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- |
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