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9692513b7e
On LLVM 20, these instructions already get eliminated, which at least partially satisfies a TODO. I'm not talented enough at using FileCheck to try and constrain this further, but if we really want to we could copy an LLVM 20 specific version of this test that would restore it to being CHECK-NEXT: insertvalue ... @rustbot label: +llvm-main
132 lines
3.7 KiB
Rust
132 lines
3.7 KiB
Rust
//@ compile-flags: -O -Z merge-functions=disabled --edition=2021
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//@ only-x86_64
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// FIXME: Remove the `min-llvm-version`.
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//@ revisions: NINETEEN TWENTY
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//@[NINETEEN] min-llvm-version: 19
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//@[NINETEEN] ignore-llvm-version: 20-99
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//@[TWENTY] min-llvm-version: 20
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#![crate_type = "lib"]
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#![feature(try_blocks)]
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use std::ops::ControlFlow::{self, Break, Continue};
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use std::ptr::NonNull;
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// CHECK-LABEL: @option_nop_match_32
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#[no_mangle]
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pub fn option_nop_match_32(x: Option<u32>) -> Option<u32> {
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// CHECK: start:
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// NINETEEN-NEXT: [[TRUNC:%.*]] = trunc nuw i32 %0 to i1
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// NINETEEN-NEXT: [[FIRST:%.*]] = select i1 [[TRUNC]], i32 %0
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// NINETEEN-NEXT: insertvalue { i32, i32 } poison, i32 [[FIRST]], 0
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// TWENTY-NEXT: insertvalue { i32, i32 } poison, i32 %0, 0
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// CHECK-NEXT: insertvalue { i32, i32 }
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// CHECK-NEXT: ret { i32, i32 }
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match x {
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Some(x) => Some(x),
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None => None,
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}
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}
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// CHECK-LABEL: @option_nop_traits_32
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#[no_mangle]
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pub fn option_nop_traits_32(x: Option<u32>) -> Option<u32> {
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// CHECK: start:
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// CHECK-NEXT: insertvalue { i32, i32 }
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// CHECK-NEXT: insertvalue { i32, i32 }
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// CHECK-NEXT: ret { i32, i32 }
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try { x? }
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}
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// CHECK-LABEL: @result_nop_match_32
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#[no_mangle]
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pub fn result_nop_match_32(x: Result<i32, u32>) -> Result<i32, u32> {
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// CHECK: start:
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// CHECK-NEXT: insertvalue { i32, i32 }
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// CHECK-NEXT: insertvalue { i32, i32 }
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// CHECK-NEXT: ret { i32, i32 }
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match x {
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Ok(x) => Ok(x),
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Err(x) => Err(x),
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}
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}
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// CHECK-LABEL: @result_nop_traits_32
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#[no_mangle]
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pub fn result_nop_traits_32(x: Result<i32, u32>) -> Result<i32, u32> {
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// CHECK: start:
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// CHECK-NEXT: insertvalue { i32, i32 }
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// CHECK-NEXT: insertvalue { i32, i32 }
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// CHECK-NEXT: ret { i32, i32 }
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try { x? }
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}
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// CHECK-LABEL: @result_nop_match_64
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#[no_mangle]
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pub fn result_nop_match_64(x: Result<i64, u64>) -> Result<i64, u64> {
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// CHECK: start:
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// CHECK-NEXT: insertvalue { i64, i64 }
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// CHECK-NEXT: insertvalue { i64, i64 }
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// CHECK-NEXT: ret { i64, i64 }
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match x {
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Ok(x) => Ok(x),
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Err(x) => Err(x),
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}
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}
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// CHECK-LABEL: @result_nop_traits_64
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#[no_mangle]
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pub fn result_nop_traits_64(x: Result<i64, u64>) -> Result<i64, u64> {
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// CHECK: start:
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// CHECK-NEXT: insertvalue { i64, i64 }
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// CHECK-NEXT: insertvalue { i64, i64 }
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// CHECK-NEXT: ret { i64, i64 }
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try { x? }
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}
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// CHECK-LABEL: @result_nop_match_ptr
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#[no_mangle]
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pub fn result_nop_match_ptr(x: Result<usize, Box<()>>) -> Result<usize, Box<()>> {
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// CHECK: start:
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// CHECK-NEXT: insertvalue { i{{[0-9]+}}, ptr }
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// CHECK-NEXT: insertvalue { i{{[0-9]+}}, ptr }
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// CHECK-NEXT: ret
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match x {
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Ok(x) => Ok(x),
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Err(x) => Err(x),
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}
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}
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// CHECK-LABEL: @result_nop_traits_ptr
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#[no_mangle]
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pub fn result_nop_traits_ptr(x: Result<u64, NonNull<()>>) -> Result<u64, NonNull<()>> {
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// CHECK: start:
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// CHECK-NEXT: insertvalue { i{{[0-9]+}}, ptr }
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// CHECK-NEXT: insertvalue { i{{[0-9]+}}, ptr }
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// CHECK-NEXT: ret
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try { x? }
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}
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// CHECK-LABEL: @control_flow_nop_match_32
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#[no_mangle]
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pub fn control_flow_nop_match_32(x: ControlFlow<i32, u32>) -> ControlFlow<i32, u32> {
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// CHECK: start:
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// CHECK-NEXT: insertvalue { i32, i32 }
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// CHECK-NEXT: insertvalue { i32, i32 }
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// CHECK-NEXT: ret { i32, i32 }
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match x {
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Continue(x) => Continue(x),
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Break(x) => Break(x),
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}
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}
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// CHECK-LABEL: @control_flow_nop_traits_32
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#[no_mangle]
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pub fn control_flow_nop_traits_32(x: ControlFlow<i32, u32>) -> ControlFlow<i32, u32> {
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// CHECK: start:
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// CHECK-NEXT: insertvalue { i32, i32 }
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// CHECK-NEXT: insertvalue { i32, i32 }
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// CHECK-NEXT: ret { i32, i32 }
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try { x? }
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}
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