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llvm6: Tweak fast math intrinsics

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Looks like they did some refactoring of flags in the backend and this should
catch us up! The "unsafe algebra" boolean has been split into a number of
boolean flags for various operations, and this updates to use the `setFast`
function which should hopefully have the same behavior as before.

This was updated in llvm-mirror/llvm@00e900afd
This commit is contained in:
Alex Crichton 2018-01-22 17:28:23 -08:00
parent 2a7ed74d96
commit 9eeecd2ada
1 changed files with 4 additions and 0 deletions
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4
src/rustllvm/RustWrapper.cpp
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@ -315,7 +315,11 @@ extern "C" void LLVMRustRemoveFunctionAttributes(LLVMValueRef Fn,
// enable fpmath flag UnsafeAlgebra // enable fpmath flag UnsafeAlgebra
extern "C" void LLVMRustSetHasUnsafeAlgebra(LLVMValueRef V) { extern "C" void LLVMRustSetHasUnsafeAlgebra(LLVMValueRef V) {
if (auto I = dyn_cast<Instruction>(unwrap<Value>(V))) { if (auto I = dyn_cast<Instruction>(unwrap<Value>(V))) {
#if LLVM_VERSION_GE(6, 0)
I->setFast(true);
#else
I->setHasUnsafeAlgebra(true); I->setHasUnsafeAlgebra(true);
#endif
} }
} }