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Use function attribute "trap-func-name" and remove TargetOptions::TrapFuncName.

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This commit changes normal isel and fast isel to read the user-defined trap
function name from function attribute "trap-func-name" attached to llvm.trap or
llvm.debugtrap instead of from TargetOptions::TrapFuncName. This is needed to
use clang's command line option "-ftrap-function" for LTO and enable changing
the trap function name on a per-call-site basis.

Out-of-tree projects currently using TargetOptions::TrapFuncName to specify the
trap function name should attach attribute "trap-func-name" to the call sites
of llvm.trap and llvm.debugtrap instead.

rdar://problem/21225723

Differential Revision: http://reviews.llvm.org/D10832


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241305 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Akira Hatanaka
2015-07-02 22:13:27 +00:00
parent 7ef8957773
commit 516286ff69
6 changed files with 58 additions and 18 deletions
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7
lib/CodeGen/TargetOptionsImpl.cpp
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@ -47,10 +47,3 @@ bool TargetOptions::LessPreciseFPMAD() const {
bool TargetOptions::HonorSignDependentRoundingFPMath() const {
return !UnsafeFPMath && HonorSignDependentRoundingFPMathOption;
}
/// getTrapFunctionName - If this returns a non-empty string, this means isel
/// should lower Intrinsic::trap to a call to the specified function name
/// instead of an ISD::TRAP node.
StringRef TargetOptions::getTrapFunctionName() const {
return TrapFuncName;
}