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b65e9bb6e7
Summary: The WebAssembly backend lowers fptoint instructions to a code sequence that checks for overflow to avoid traps because fptoint is supposed to be speculatable. These new builtins and intrinsics give users a way to depend on the trapping semantics of the underlying instructions and avoid the extra code generated normally. Patch by coffee and tlively. Reviewers: aheejin Subscribers: dschuff, sbc100, jgravelle-google, hiraditya, sunfish, cfe-commits, llvm-commits Tags: #clang, #llvm Differential Revision: https://reviews.llvm.org/D68902 llvm-svn: 374856