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| author | Guillaume Gomez <guillaume1.gomez@gmail.com> | 2020-12-17 11:36:52 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-12-17 11:36:52 +0100 |
| commit | 1f5d8de0627738ee7b0d5bcf5bcc9080a519f2f0 (patch) | |
| tree | 358d7033f6cf8a135452442b33910737512b1a6a /compiler/rustc_codegen_ssa/src | |
| parent | 93f1c67e91939e7f0f933194cb2168ca76c19068 (diff) | |
| parent | a9ff4bd838a976e0215d3b6c06014eabc028550e (diff) | |
| download | rust-1f5d8de0627738ee7b0d5bcf5bcc9080a519f2f0.tar.gz rust-1f5d8de0627738ee7b0d5bcf5bcc9080a519f2f0.zip | |
Rollup merge of #80040 - tmiasko:always-lower-intrinsics, r=Dylan-DPC
Always run intrinsics lowering pass Move intrinsics lowering pass from the optimization phase (where it would not run if -Zmir-opt-level=0), to the drop lowering phase where it runs unconditionally. The implementation of those intrinsics in code generation and interpreter is unnecessary. Remove it.
Diffstat (limited to 'compiler/rustc_codegen_ssa/src')
| -rw-r--r-- | compiler/rustc_codegen_ssa/src/mir/intrinsic.rs | 16 |
1 files changed, 1 insertions, 15 deletions
diff --git a/compiler/rustc_codegen_ssa/src/mir/intrinsic.rs b/compiler/rustc_codegen_ssa/src/mir/intrinsic.rs index 72a64a8c510..34022643101 100644 --- a/compiler/rustc_codegen_ssa/src/mir/intrinsic.rs +++ b/compiler/rustc_codegen_ssa/src/mir/intrinsic.rs @@ -83,9 +83,6 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { return; } - sym::unreachable => { - return; - } sym::va_start => bx.va_start(args[0].immediate()), sym::va_end => bx.va_end(args[0].immediate()), sym::size_of_val => { @@ -106,8 +103,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { bx.const_usize(bx.layout_of(tp_ty).align.abi.bytes()) } } - sym::size_of - | sym::pref_align_of + sym::pref_align_of | sym::min_align_of | sym::needs_drop | sym::type_id @@ -119,10 +115,6 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { .unwrap(); OperandRef::from_const(bx, value, ret_ty).immediate_or_packed_pair(bx) } - // Effectively no-op - sym::forget => { - return; - } sym::offset => { let ptr = args[0].immediate(); let offset = args[1].immediate(); @@ -218,9 +210,6 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { sym::add_with_overflow | sym::sub_with_overflow | sym::mul_with_overflow - | sym::wrapping_add - | sym::wrapping_sub - | sym::wrapping_mul | sym::unchecked_div | sym::unchecked_rem | sym::unchecked_shl @@ -254,9 +243,6 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { return; } - sym::wrapping_add => bx.add(args[0].immediate(), args[1].immediate()), - sym::wrapping_sub => bx.sub(args[0].immediate(), args[1].immediate()), - sym::wrapping_mul => bx.mul(args[0].immediate(), args[1].immediate()), sym::exact_div => { if signed { bx.exactsdiv(args[0].immediate(), args[1].immediate()) |