Bump mir-opt-level from 2 to 3 in tests

Author: spastorino

src/test/codegen/issue-59352.rs

@@ -5,8 +5,8 @@
 // Once the optimizer can do that, mir-opt/issues/issue-59352.rs will need to be updated and this
 // test case should be removed as it will become redundant.
 
-// mir-opt-level=2 enables inlining and enables LLVM to optimize away the unreachable panic call.
-// compile-flags: -O -Z mir-opt-level=2
+// mir-opt-level=3 enables inlining and enables LLVM to optimize away the unreachable panic call.
+// compile-flags: -O -Z mir-opt-level=3
 
 #![crate_type = "rlib"]
 

src/test/codegen/naked-noinline.rs

@@ -1,5 +1,5 @@
 // Checks that naked functions are never inlined.
-// compile-flags: -O -Zmir-opt-level=2
+// compile-flags: -O -Zmir-opt-level=3
 // ignore-wasm32
 #![crate_type = "lib"]
 #![feature(asm)]

src/test/codegen/try_identity.rs

@@ -1,4 +1,4 @@
-// compile-flags: -C no-prepopulate-passes -O -Z mir-opt-level=2 -Zunsound-mir-opts
+// compile-flags: -C no-prepopulate-passes -O -Z mir-opt-level=3 -Zunsound-mir-opts
 
 // Ensure that `x?` has no overhead on `Result<T, E>` due to identity `match`es in lowering.
 // This requires inlining to trigger the MIR optimizations in `SimplifyArmIdentity`.

src/test/mir-opt/const_prop/issue-66971.rs

@@ -1,4 +1,4 @@
-// compile-flags: -Z mir-opt-level=2
+// compile-flags: -Z mir-opt-level=3
 
 // Due to a bug in propagating scalar pairs the assertion below used to fail. In the expected
 // outputs below, after ConstProp this is how _2 would look like with the bug:

src/test/mir-opt/const_prop/issue-67019.rs

@@ -1,4 +1,4 @@
-// compile-flags: -Z mir-opt-level=2
+// compile-flags: -Z mir-opt-level=3
 
 // This used to ICE in const-prop
 

src/test/mir-opt/issues/issue-59352.rs

@@ -7,7 +7,7 @@
 // removed.
 
 // EMIT_MIR issue_59352.num_to_digit.PreCodegen.after.mir
-// compile-flags: -Z mir-opt-level=2 -Z span_free_formats
+// compile-flags: -Z mir-opt-level=3 -Z span_free_formats
 
 pub fn num_to_digit(num: char) -> u32 {
     // CHECK-NOT: panic

src/test/mir-opt/simplify-arm-identity.rs

@@ -1,7 +1,7 @@
 // Checks that `SimplifyArmIdentity` is not applied if enums have incompatible layouts.
 // Regression test for issue #66856.
 //
-// compile-flags: -Zmir-opt-level=2
+// compile-flags: -Zmir-opt-level=3
 // EMIT_MIR_FOR_EACH_BIT_WIDTH
 
 enum Src {

src/test/mir-opt/simplify-arm.rs

@@ -1,4 +1,4 @@
-// compile-flags: -Z mir-opt-level=2 -Zunsound-mir-opts
+// compile-flags: -Z mir-opt-level=3 -Zunsound-mir-opts
 // EMIT_MIR simplify_arm.id.SimplifyArmIdentity.diff
 // EMIT_MIR simplify_arm.id.SimplifyBranchSame.diff
 // EMIT_MIR simplify_arm.id_result.SimplifyArmIdentity.diff

src/test/ui/const_prop/inline_spans.rs

@@ -1,5 +1,5 @@
 // build-fail
-// compile-flags: -Zmir-opt-level=2
+// compile-flags: -Zmir-opt-level=3
 
 #![deny(warnings)]
 

src/test/ui/const_prop/inline_spans_lint_attribute.rs

@@ -1,6 +1,6 @@
 // Must be build-pass, because check-pass will not run const prop and thus not emit the lint anyway.
 // build-pass
-// compile-flags: -Zmir-opt-level=2
+// compile-flags: -Zmir-opt-level=3
 
 #![deny(warnings)]