llvm-project.git/clang/test/CodeGenCXX/inalloca-lambda.cpp, branch users/pcc/spr/elf-add-preferred-function-alignment-flag Unnamed repository; edit this file 'description' to name the repository. [clang][CodeGen] Set `dead_on_return` when passing arguments indirectly 2025-07-18T09:50:18+00:00 Antonio Frighetto me@antoniofrighetto.com 2025-07-18T08:59:42+00:00 9e0c06d708a40bb3c8bd08acd982836cce718135 Let Clang emit `dead_on_return` attribute on pointer arguments that are passed indirectly, namely, large aggregates that the ABI mandates be passed by value; thus, the parameter is destroyed within the callee. Writes to such arguments are not observable by the caller after the callee returns. This should desirably enable further MemCpyOpt/DSE optimizations. Previous discussion: https://discourse.llvm.org/t/rfc-add-dead-on-return-attribute/86871. 
Let Clang emit `dead_on_return` attribute on pointer arguments
that are passed indirectly, namely, large aggregates that the
ABI mandates be passed by value; thus, the parameter is destroyed
within the callee. Writes to such arguments are not observable by
the caller after the callee returns.

This should desirably enable further MemCpyOpt/DSE optimizations.

Previous discussion: https://discourse.llvm.org/t/rfc-add-dead-on-return-attribute/86871.
[IRBuilder] Generate nuw GEPs for struct member accesses (#99538) 2024-08-09T12:25:04+00:00 Hari Limaye hari.limaye@arm.com 2024-08-09T12:25:04+00:00 94473f4db6a6f5f12d7c4081455b5b596094eac5 Generate nuw GEPs for struct member accesses, as inbounds + non-negative implies nuw. Regression tests are updated using update scripts where possible, and by find + replace where not. 
Generate nuw GEPs for struct member accesses, as inbounds + non-negative
implies nuw.

Regression tests are updated using update scripts where possible, and by
find + replace where not.
 Reland "Try to implement lambdas with inalloca parameters by forwarding without use of inallocas."t 2023-07-26T23:13:36+00:00 Amy Huang akhuang@google.com 2023-06-23T18:41:44+00:00 27dab4d305acb6e0935e014c061c5317016ae2b3 This reverts commit 8ed7aa59f489715d39d32e72a787b8e75cfda151. Differential Revision: https://reviews.llvm.org/D154007 
This reverts commit 8ed7aa59f489715d39d32e72a787b8e75cfda151.

Differential Revision: https://reviews.llvm.org/D154007
Revert "Try to implement lambdas with inalloca parameters by forwarding without use of inallocas." 2023-06-22T18:42:33+00:00 Amy Huang akhuang@google.com 2023-06-22T18:36:30+00:00 8ed7aa59f489715d39d32e72a787b8e75cfda151 Causes a clang crash (see crbug.com/1457256). This reverts commit 015049338d7e8e0e81f2ad2f94e5a43e2e3f5220. 
Causes a clang crash (see crbug.com/1457256).

This reverts commit 015049338d7e8e0e81f2ad2f94e5a43e2e3f5220.
Try to implement lambdas with inalloca parameters by forwarding without use of inallocas. 2023-06-21T00:30:20+00:00 Amy Huang akhuang@google.com 2022-11-07T23:29:27+00:00 015049338d7e8e0e81f2ad2f94e5a43e2e3f5220 Differential Revision: https://reviews.llvm.org/D137872 
Differential Revision: https://reviews.llvm.org/D137872
Emit a proper diagnostic when attempting to forward inalloca arguments 2018-12-12T23:46:06+00:00 Reid Kleckner rnk@google.com 2018-12-12T23:46:06+00:00 25b56024aa369df85e9c0d986ace6a5bac164664 The previous assertion was relatively easy to trigger, and likely will be easy to trigger going forward. EmitDelegateCallArg is relatively popular. This cleanly diagnoses PR28299 while I work on a proper solution. llvm-svn: 348991 
The previous assertion was relatively easy to trigger, and likely will
be easy to trigger going forward. EmitDelegateCallArg is relatively
popular.

This cleanly diagnoses PR28299 while I work on a proper solution.

llvm-svn: 348991