Cherry Zhang 111d590f86 cmd/compile: fix possible spill of invalid pointer with DUFFZERO on AMD64 ... SSA compiler on AMD64 may spill Duff-adjusted address as scalar. If the object is on stack and the stack moves, the spilled address become invalid. Making the spill pointer-typed does not work. The Duff-adjusted address points to the memory before the area to be zeroed and may be invalid. This may cause stack scanning code panic. Fix it by doing Duff-adjustment in genValue, so the intermediate value is not seen by the reg allocator, and will not be spilled. Add a test to cover both cases. As it depends on allocation, it may be not always triggered. Fixes #16515. Change-Id: Ia81d60204782de7405b7046165ad063384ede0db Reviewed-on: https://go-review.googlesource.com/25309 Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com>		2016-07-29 01:09:55 +00:00
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issue15548.dir	test: update test for issue 15548	2016-05-06 02:50:42 +00:00
issue15572.dir	cmd/compile: fix binary export of composite literals with implicit types	2016-05-09 06:16:07 +00:00
issue15646.dir	cmd/compile: clean up encoding of method expressions and add test	2016-05-11 19:23:04 +00:00
issue15838.dir	cmd/compile: correctly import labels, gotos, and fallthroughs	2016-05-26 00:32:03 +00:00
issue15920.dir	cmd/compile: correctly export underlying type of predecl. error type	2016-06-01 21:32:46 +00:00
issue16133.dir	cmd/compile: fix error msg mentioning different packages with same name	2016-06-22 00:12:55 +00:00
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bug398.go	cmd/compile: add and enable (internal) option to only track named types	2016-05-07 23:56:02 +00:00
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issue13779.go	cmd/compile, go/types: omit needless word in error message	2016-05-24 15:07:16 +00:00
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issue14136.go	cmd/compile: don't exit early because of hidden error messages	2016-05-19 23:17:54 +00:00
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issue14331.go	…
issue14405.go	…
issue14520.go	…
issue14553.go	…
issue14591.go	…
issue14636.go	…
issue14646.go	…
issue14651.go	…
issue14652.go	…
issue14725.go	…
issue14729.go	…
issue14988.go	…
issue14999.go	…
issue15002.go	…
issue15013.go	…
issue15039.go	…
issue15042.go	…
issue15084.go	…
issue15091.go	…
issue15175.go	…
issue15252.go	…
issue15277.go	cmd/compile: fix build	2016-05-18 20:44:00 +00:00
issue15281.go	…
issue15311.go	…
issue15329.go	cmd/compile: handle unsafe.Pointer(f()) correctly	2016-05-18 14:01:22 +00:00
issue15439.go	…
issue15470.go	…
issue15548.go	…
issue15572.go	cmd/compile: fix binary export of composite literals with implicit types	2016-05-09 06:16:07 +00:00
issue15585.go	cmd/compile: correct sparseSet probes in regalloc to avoid index error	2016-05-09 18:35:44 +00:00
issue15602.go	test: add test for issue 15602	2016-05-08 22:59:43 +00:00
issue15604.go	test: add test for unlowered ITab	2016-05-10 16:30:34 +00:00
issue15646.go	cmd/compile: clean up encoding of method expressions and add test	2016-05-11 19:23:04 +00:00
issue15733.go	cmd/compile: large ptr literals must escape	2016-05-19 15:12:01 +00:00
issue15747.go	cmd/compile: fix liveness computation for heap-escaped parameters	2016-05-27 03:19:52 +00:00
issue15747b.go	cmd/compile: fix liveness computation for heap-escaped parameters	2016-05-27 03:19:52 +00:00
issue15838.go	cmd/compile: correctly import labels, gotos, and fallthroughs	2016-05-26 00:32:03 +00:00
issue15898.go	cmd/compile: disallow multiple nil cases in a type switch	2016-05-31 20:31:00 +00:00
issue15902.go	cmd/compile: for arm, zero unaligned memory 1 byte at a time	2016-06-01 14:14:13 +00:00
issue15920.go	cmd/compile: correctly export underlying type of predecl. error type	2016-06-01 21:32:46 +00:00
issue15926.go	cmd/link: avoid name collision with DWARF .def suffix	2016-06-03 16:56:29 +00:00
issue15961.go	cmd/compile: use fake package for allocating autos	2016-06-07 06:04:23 +00:00
issue15975.go	cmd/compile: nilcheck interface value in go/defer interface call for SSA	2016-06-08 20:35:53 +00:00
issue15988.go	cmd/compile: cgen_append can handle complex targets	2016-06-08 00:01:09 +00:00
issue16008.go	test: add missing copyright notice	2016-06-20 23:46:33 +00:00
issue16016.go	cmd/compile: for tail calls in stubs, ensure args are alive	2016-06-09 19:32:51 +00:00
issue16037_run.go	cmd/compile, etc: handle many struct fields	2016-06-14 15:32:34 +00:00
issue16095.go	cmd/compile: keep heap pointer for escaping output parameters live	2016-06-27 16:48:48 +00:00
issue16130.go	runtime: panic with the right error on iface conversion	2016-06-21 01:43:42 +00:00
issue16133.go	cmd/compile: fix error msg mentioning different packages with same name	2016-06-22 00:12:55 +00:00
issue16193.go	cmd/compile: avoid function literal name collision with "glob"	2016-06-27 21:05:28 +00:00
issue16249.go	cmd/compile: mark live heap-allocated pparamout vars as needzero	2016-07-02 00:40:40 +00:00
issue16515.go	cmd/compile: fix possible spill of invalid pointer with DUFFZERO on AMD64	2016-07-29 01:09:55 +00:00