[clang] [llvm] [LLVMABI][AARCH64] Added aggregate return support (PR #229202)

[via cfe-commits]

github-actions[bot] wrote:

<!--PREMERGE ADVISOR COMMENT: Windows-->
# :window: Windows x64 Test Results

* 143385 tests passed
* 3444 tests skipped
* 1 test failed

## Failed Tests
(click on a test name to see its output)

### Clang
<details>
<summary>Clang.CodeGen/AArch64/abi-lowering-matrix-ha-compat23.c</summary>

```
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 2
c:\_work\llvm-project\llvm-project\build\bin\clang.exe -cc1 -internal-isystem C:\_work\llvm-project\llvm-project\build\lib\clang\24\include -nostdsysteminc -triple aarch64-linux-gnu -fenable-matrix -fexperimental-abi-lowering -emit-llvm -o - C:\_work\llvm-project\llvm-project\clang\test\CodeGen\AArch64\abi-lowering-matrix-ha-compat23.c 2>&1 | c:\_work\llvm-project\llvm-project\build\bin\filecheck.exe C:\_work\llvm-project\llvm-project\clang\test\CodeGen\AArch64\abi-lowering-matrix-ha-compat23.c --check-prefix=LATEST --implicit-check-not="not yet implemented"
# executed command: 'c:\_work\llvm-project\llvm-project\build\bin\clang.exe' -cc1 -internal-isystem 'C:\_work\llvm-project\llvm-project\build\lib\clang\24\include' -nostdsysteminc -triple aarch64-linux-gnu -fenable-matrix -fexperimental-abi-lowering -emit-llvm -o - 'C:\_work\llvm-project\llvm-project\clang\test\CodeGen\AArch64\abi-lowering-matrix-ha-compat23.c'
# note: command had no output on stdout or stderr
# executed command: 'c:\_work\llvm-project\llvm-project\build\bin\filecheck.exe' 'C:\_work\llvm-project\llvm-project\clang\test\CodeGen\AArch64\abi-lowering-matrix-ha-compat23.c' --check-prefix=LATEST '--implicit-check-not=not yet implemented'
# note: command had no output on stdout or stderr
# RUN: at line 3
not --crash c:\_work\llvm-project\llvm-project\build\bin\clang.exe -cc1 -internal-isystem C:\_work\llvm-project\llvm-project\build\lib\clang\24\include -nostdsysteminc -triple aarch64-linux-gnu -fclang-abi-compat=23 -fenable-matrix -fexperimental-abi-lowering -emit-llvm -o - C:\_work\llvm-project\llvm-project\clang\test\CodeGen\AArch64\abi-lowering-matrix-ha-compat23.c 2>&1 | c:\_work\llvm-project\llvm-project\build\bin\filecheck.exe C:\_work\llvm-project\llvm-project\clang\test\CodeGen\AArch64\abi-lowering-matrix-ha-compat23.c --check-prefix=COMPAT23
# executed command: not --crash 'c:\_work\llvm-project\llvm-project\build\bin\clang.exe' -cc1 -internal-isystem 'C:\_work\llvm-project\llvm-project\build\lib\clang\24\include' -nostdsysteminc -triple aarch64-linux-gnu -fclang-abi-compat=23 -fenable-matrix -fexperimental-abi-lowering -emit-llvm -o - 'C:\_work\llvm-project\llvm-project\clang\test\CodeGen\AArch64\abi-lowering-matrix-ha-compat23.c'
# note: command had no output on stdout or stderr
# error: command failed with exit status: 1
# executed command: 'c:\_work\llvm-project\llvm-project\build\bin\filecheck.exe' 'C:\_work\llvm-project\llvm-project\clang\test\CodeGen\AArch64\abi-lowering-matrix-ha-compat23.c' --check-prefix=COMPAT23
# .---command stderr------------
# | C:\_work\llvm-project\llvm-project\clang\test\CodeGen\AArch64\abi-lowering-matrix-ha-compat23.c:29:14: error: COMPAT23: expected string not found in input
# | // COMPAT23: Aggregate return type handling is not yet implemented for AArch64 in the LLVM ABI library.
# |              ^
# | <stdin>:1:1: note: scanning from here
# | ; ModuleID = 'C:\_work\llvm-project\llvm-project\clang\test\CodeGen\AArch64\abi-lowering-matrix-ha-compat23.c'
# | ^
# | 
# | Input file: <stdin>
# | Check file: C:\_work\llvm-project\llvm-project\clang\test\CodeGen\AArch64\abi-lowering-matrix-ha-compat23.c
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
# | <<<<<<
# |             1: ; ModuleID = 'C:\_work\llvm-project\llvm-project\clang\test\CodeGen\AArch64\abi-lowering-matrix-ha-compat23.c' 
# | check:29'0    {                                                                                                                 search range start (exclusive)
# | check:29'1                                                                                                                      error: no match found in search range
# |             2: source_filename = "C:\\_work\\llvm-project\\llvm-project\\clang\\test\\CodeGen\\AArch64\\abi-lowering-matrix-ha-compat23.c" 
# |             3: target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32" 
# |             4: target triple = "aarch64-unknown-linux-gnu" 
# |             5:  
# |             6: %struct.MatrixStruct = type { [4 x float] } 
# |             .
# |             .
# |             .
# |            23: !1 = !{i32 1, !"ptrauth-init-fini", i32 0} 
# |            24: !2 = !{i32 1, !"ptrauth-init-fini-address-discrimination", i32 0} 
# |            25: !3 = !{i32 1, !"ptrauth-sign-personality", i32 0} 
# |            26: !4 = !{i32 1, !"aarch64-elf-pauthabi-platform", i32 268435458} 
# |            27: !5 = !{i32 1, !"aarch64-elf-pauthabi-version", i32 0} 
# |            28: !6 = !{!"clang version 24.0.0git (https://github.com/llvm/llvm-project f90673be6180217852ed6758ad63de586e77d453)"} 
# | check:29'2                                                                                                                        } search range end (exclusive)
# | >>>>>>
# `-----------------------------
# error: command failed with exit status: 1

--

```
</details>

If these failures are unrelated to your changes (for example tests are broken or flaky at HEAD), please open an issue at https://github.com/llvm/llvm-project/issues and add the `infrastructure` label.

https://github.com/llvm/llvm-project/pull/229202