diff options
Diffstat (limited to 'src/librustc_codegen_llvm')
| -rw-r--r-- | src/librustc_codegen_llvm/context.rs | 1 | ||||
| -rw-r--r-- | src/librustc_codegen_llvm/intrinsic.rs | 6 |
2 files changed, 7 insertions, 0 deletions
diff --git a/src/librustc_codegen_llvm/context.rs b/src/librustc_codegen_llvm/context.rs index 58ce9703909..bac37369a29 100644 --- a/src/librustc_codegen_llvm/context.rs +++ b/src/librustc_codegen_llvm/context.rs @@ -537,6 +537,7 @@ impl CodegenCx<'b, 'tcx> { ifn!("llvm.trap", fn() -> void); ifn!("llvm.debugtrap", fn() -> void); ifn!("llvm.frameaddress", fn(t_i32) -> i8p); + ifn!("llvm.sideeffect", fn() -> void); ifn!("llvm.powi.f32", fn(t_f32, t_i32) -> t_f32); ifn!("llvm.powi.v2f32", fn(t_v2f32, t_i32) -> t_v2f32); diff --git a/src/librustc_codegen_llvm/intrinsic.rs b/src/librustc_codegen_llvm/intrinsic.rs index b7a410c3760..a8734d338df 100644 --- a/src/librustc_codegen_llvm/intrinsic.rs +++ b/src/librustc_codegen_llvm/intrinsic.rs @@ -124,6 +124,7 @@ impl IntrinsicCallMethods<'tcx> for Builder<'a, 'll, 'tcx> { self.call(expect, &[args[0].immediate(), self.const_bool(false)], None) } "try" => { + self.sideeffect(); try_intrinsic(self, args[0].immediate(), args[1].immediate(), @@ -724,6 +725,11 @@ impl IntrinsicCallMethods<'tcx> for Builder<'a, 'll, 'tcx> { self.call(expect, &[cond, self.const_bool(expected)], None) } + fn sideeffect(&mut self) { + let fnname = self.get_intrinsic(&("llvm.sideeffect")); + self.call(fnname, &[], None); + } + fn va_start(&mut self, va_list: &'ll Value) -> &'ll Value { let intrinsic = self.cx().get_intrinsic("llvm.va_start"); self.call(intrinsic, &[va_list], None) |