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[CIR][CIRGen] Emit cir.unreachable on implicit returns #486

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merged 2 commits into from
Mar 5, 2024

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@Lancern Lancern commented Feb 27, 2024

This patch changes the emission of implicit returns from functions whose return type is not void. Instead of emitting cir.return, this PR aligns to the original clang CodeGen and emits a cir.unreachable operation.

Related issue: #457 .

This patch changes the emission of implicit returns from functions whose return
type is not void. Instead of emitting cir.return, this PR aligns to the original
clang CodeGen and emits a cir.unreachable operation.
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@bcardosolopes bcardosolopes left a comment

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Awesome

@@ -370,22 +370,62 @@ void CIRGenFunction::LexicalScope::cleanup() {
(void)buildReturn(retLoc);
}

auto buildImplicitReturn = [&]() {
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This function is already a bit big, instead of the lambda, please break this apart into a new one!

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Updated.

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LGTM

@bcardosolopes bcardosolopes merged commit 22388c1 into llvm:main Mar 5, 2024
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@Lancern Lancern deleted the unreachable-on-implicit-return branch March 6, 2024 01:28
lanza pushed a commit that referenced this pull request Mar 23, 2024
This patch changes the emission of implicit returns from functions whose
return type is not `void`. Instead of emitting `cir.return`, this PR
aligns to the original clang CodeGen and emits a `cir.unreachable`
operation.

Related issue: #457 .
eZWALT pushed a commit to eZWALT/clangir that referenced this pull request Mar 24, 2024
This patch changes the emission of implicit returns from functions whose
return type is not `void`. Instead of emitting `cir.return`, this PR
aligns to the original clang CodeGen and emits a `cir.unreachable`
operation.

Related issue: llvm#457 .
lanza pushed a commit that referenced this pull request Apr 29, 2024
This patch changes the emission of implicit returns from functions whose
return type is not `void`. Instead of emitting `cir.return`, this PR
aligns to the original clang CodeGen and emits a `cir.unreachable`
operation.

Related issue: #457 .
lanza pushed a commit that referenced this pull request Apr 29, 2024
This patch changes the emission of implicit returns from functions whose
return type is not `void`. Instead of emitting `cir.return`, this PR
aligns to the original clang CodeGen and emits a `cir.unreachable`
operation.

Related issue: #457 .
eZWALT pushed a commit to eZWALT/clangir that referenced this pull request Apr 29, 2024
This patch changes the emission of implicit returns from functions whose
return type is not `void`. Instead of emitting `cir.return`, this PR
aligns to the original clang CodeGen and emits a `cir.unreachable`
operation.

Related issue: llvm#457 .
lanza pushed a commit that referenced this pull request Apr 29, 2024
This patch changes the emission of implicit returns from functions whose
return type is not `void`. Instead of emitting `cir.return`, this PR
aligns to the original clang CodeGen and emits a `cir.unreachable`
operation.

Related issue: #457 .
bruteforceboy pushed a commit to bruteforceboy/clangir that referenced this pull request Oct 2, 2024
This patch changes the emission of implicit returns from functions whose
return type is not `void`. Instead of emitting `cir.return`, this PR
aligns to the original clang CodeGen and emits a `cir.unreachable`
operation.

Related issue: llvm#457 .
Hugobros3 pushed a commit to shady-gang/clangir that referenced this pull request Oct 2, 2024
This patch changes the emission of implicit returns from functions whose
return type is not `void`. Instead of emitting `cir.return`, this PR
aligns to the original clang CodeGen and emits a `cir.unreachable`
operation.

Related issue: llvm#457 .
keryell pushed a commit to keryell/clangir that referenced this pull request Oct 19, 2024
This patch changes the emission of implicit returns from functions whose
return type is not `void`. Instead of emitting `cir.return`, this PR
aligns to the original clang CodeGen and emits a `cir.unreachable`
operation.

Related issue: llvm#457 .
lanza pushed a commit that referenced this pull request Nov 5, 2024
This patch changes the emission of implicit returns from functions whose
return type is not `void`. Instead of emitting `cir.return`, this PR
aligns to the original clang CodeGen and emits a `cir.unreachable`
operation.

Related issue: #457 .
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2 participants