diff options
| author | Dan Gohman <sunfish@mozilla.com> | 2014-02-25 19:22:12 -0800 |
|---|---|---|
| committer | Dan Gohman <sunfish@mozilla.com> | 2014-02-28 11:22:37 -0800 |
| commit | eaddc5d650f87a861ebdc6d3c49fb155ec791306 (patch) | |
| tree | d635a477ede94649247cc4104a36876b1fc750b5 | |
| parent | 00b643e31badf20d270501e5ae15a17baa864c6f (diff) | |
Implement llvm.flt.rounds and disable the createRewriteLLVMIntrinsicsPass pass.
| -rw-r--r-- | lib/Target/JSBackend/CallHandlers.h | 7 | ||||
| -rw-r--r-- | lib/Transforms/NaCl/PNaClABISimplify.cpp | 2 | ||||
| -rw-r--r-- | test/CodeGen/JS/basics.ll | 8 |
3 files changed, 17 insertions, 0 deletions
diff --git a/lib/Target/JSBackend/CallHandlers.h b/lib/Target/JSBackend/CallHandlers.h index ec17f905d1..93275b9637 100644 --- a/lib/Target/JSBackend/CallHandlers.h +++ b/lib/Target/JSBackend/CallHandlers.h @@ -362,6 +362,12 @@ DEF_CALL_HANDLER(llvm_prefetch, { return ""; }) +DEF_CALL_HANDLER(llvm_flt_rounds, { + // FLT_ROUNDS helper. We don't support setting the rounding mode dynamically, + // so it's always round-to-nearest (1). + return getAssign(CI) + "1"; +}) + DEF_CALL_HANDLER(bitshift64Lshr, { return CH___default__(CI, "_bitshift64Lshr", 3); }) @@ -735,6 +741,7 @@ void setupCallHandlers() { SETUP_CALL_HANDLER(llvm_invariant_start); SETUP_CALL_HANDLER(llvm_invariant_end); SETUP_CALL_HANDLER(llvm_prefetch); + SETUP_CALL_HANDLER(llvm_flt_rounds); SETUP_CALL_HANDLER(bitshift64Lshr); SETUP_CALL_HANDLER(bitshift64Ashr); SETUP_CALL_HANDLER(bitshift64Shl); diff --git a/lib/Transforms/NaCl/PNaClABISimplify.cpp b/lib/Transforms/NaCl/PNaClABISimplify.cpp index 1ed0d7841a..41dd2f58fd 100644 --- a/lib/Transforms/NaCl/PNaClABISimplify.cpp +++ b/lib/Transforms/NaCl/PNaClABISimplify.cpp @@ -61,8 +61,10 @@ void llvm::PNaClABISimplifyAddPreOptPasses(PassManager &PM) { // LowerExpect converts Intrinsic::expect into branch weights, // which can then be removed after BlockPlacement. PM.add(createLowerExpectIntrinsicPass()); +#if 0 // XXX EMSCRIPTEN: We don't need this. // Rewrite unsupported intrinsics to simpler and portable constructs. PM.add(createRewriteLLVMIntrinsicsPass()); +#endif // Expand out some uses of struct types. PM.add(createExpandArithWithOverflowPass()); diff --git a/test/CodeGen/JS/basics.ll b/test/CodeGen/JS/basics.ll index 8c84b6b37b..76237fd669 100644 --- a/test/CodeGen/JS/basics.ll +++ b/test/CodeGen/JS/basics.ll @@ -25,3 +25,11 @@ define double @fneg(double %d) nounwind { %f = fsub double -0.0, %d ret double %f } + +; CHECK: function _flt_rounds( +; CHECK: t = 1; +declare i32 @llvm.flt.rounds() +define i32 @flt_rounds() { + %t = call i32 @llvm.flt.rounds() + ret i32 %t +} |