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[runtime] Reinstate TwoWordPair hack for swiftcall returns. (#14079)

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clang is miscompiling some swiftcall functions on armv7s.
Stop using swiftcall in some places until it is fixed.

Reverts c5bf2ec (#13299).

rdar://35973477
This commit is contained in:
Greg Parker
2018-01-23 01:04:01 -08:00
committed by GitHub
parent 16c93f834c
commit 7b9224794e
21 changed files with 151 additions and 107 deletions
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4
lib/IRGen/IRGenModule.cpp
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@@ -635,10 +635,6 @@ llvm::Constant *swift::getWrapperFn(llvm::Module &Module,
RETURNS, ARGS, ATTRS) \
FUNCTION_IMPL(ID, NAME, CC, QUOTE(RETURNS), QUOTE(ARGS), QUOTE(ATTRS))
#define FUNCTION_WITH_GLOBAL_SYMBOL_FOR_CONV_SwiftCC(ID, NAME, SYMBOL, CC, \
RETURNS, ARGS, ATTRS) \
FUNCTION_IMPL(ID, NAME, CC, QUOTE(RETURNS), QUOTE(ARGS), QUOTE(ATTRS))
#define FUNCTION_WITH_GLOBAL_SYMBOL_FOR_CONV_RegisterPreservingCC( \
ID, NAME, SYMBOL, CC, RETURNS, ARGS, ATTRS) \
FUNCTION_WITH_GLOBAL_SYMBOL_IMPL(ID, NAME, SYMBOL, CC, QUOTE(RETURNS), \