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# 878a24ee 03-Dec-2019 Elizabeth Andrews <[email protected]>

Reapply "Fix crash on switch conditions of non-integer types in templates"

This patch reapplies commit 759948467ea. Patch was reverted due to a
clang-tidy test fail on Windows. The test has been mod

Reapply "Fix crash on switch conditions of non-integer types in templates"

This patch reapplies commit 759948467ea. Patch was reverted due to a
clang-tidy test fail on Windows. The test has been modified. There
are no additional code changes.

Patch was tested with ninja check-all on Windows and Linux.

Summary of code changes:

Clang currently crashes for switch statements inside a template when the
condition is a non-integer field member because contextual implicit
conversion is skipped when parsing the condition. This conversion is
however later checked in an assert when the case statement is handled.
The conversion is skipped when parsing the condition because
the field member is set as type-dependent based on its containing class.
This patch sets the type dependency based on the field's type instead.

This patch fixes Bug 40982.

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Revision tags: llvmorg-9.0.1-rc1
# 75994846 08-Nov-2019 Melanie Blower <[email protected]>

Reapply "Fix crash on switch conditions of non-integer types in templates"

This patch reapplies commit 76945821b9cad3. The first version broke
buildbots due to clang-tidy test fails. The fails are b

Reapply "Fix crash on switch conditions of non-integer types in templates"

This patch reapplies commit 76945821b9cad3. The first version broke
buildbots due to clang-tidy test fails. The fails are because some
errors in templates are now diagnosed earlier (does not wait till
instantiation). I have modified the tests to add checks for these
diagnostics/prevent these diagnostics. There are no additional code
changes.

Summary of code changes:

Clang currently crashes for switch statements inside a template when the
condition is a non-integer field member because contextual implicit
conversion is skipped when parsing the condition. This conversion is
however later checked in an assert when the case statement is handled.
The conversion is skipped when parsing the condition because
the field member is set as type-dependent based on its containing class.
This patch sets the type dependency based on the field's type instead.

This patch fixes Bug 40982.

Reviewers: rnk, gribozavr2

Patch by: Elizabeth Andrews (eandrews)

Differential revision: https://reviews.llvm.org/D69950

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Revision tags: llvmorg-9.0.0, llvmorg-9.0.0-rc6, llvmorg-9.0.0-rc5, llvmorg-9.0.0-rc4, llvmorg-9.0.0-rc3
# 76945821 13-Aug-2019 Elizabeth Andrews <[email protected]>

Fix crash on switch conditions of non-integer types in templates

Clang currently crashes for switch statements inside a template when
the condition is a non-integer field. The crash is due to incorr

Fix crash on switch conditions of non-integer types in templates

Clang currently crashes for switch statements inside a template when
the condition is a non-integer field. The crash is due to incorrect
type-dependency of field. Type-dependency of member expressions is
currently set based on the containing class. This patch changes this for
'members of the current instantiation' to set the type dependency based
on the member's type instead.

A few lit tests started to fail once I applied this patch because errors
are now diagnosed earlier (does not wait till instantiation). I've modified
these tests in this patch as well.

Patch fixes PR#40982

Differential Revision: https://reviews.llvm.org/D61027

llvm-svn: 368706

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