[llvm] [AArch64] support `byval` arguments in `tailcc` tail calls (PR #206718)

via llvm-commits llvm-commits at lists.llvm.org
Tue Jun 30 06:06:55 PDT 2026


github-actions[bot] wrote:

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

* 136460 tests passed
* 3509 tests skipped
* 1 test failed

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

### LLVM
<details>
<summary>LLVM.CodeGen/AArch64/GlobalISel/call-translator-tail-call.ll</summary>

```
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 2
c:\_work\llvm-project\llvm-project\build\bin\llc.exe C:\_work\llvm-project\llvm-project\llvm\test\CodeGen\AArch64\GlobalISel\call-translator-tail-call.ll -stop-after=irtranslator -verify-machineinstrs -mtriple aarch64-apple-darwin -global-isel -o - 2>&1 | c:\_work\llvm-project\llvm-project\build\bin\filecheck.exe C:\_work\llvm-project\llvm-project\llvm\test\CodeGen\AArch64\GlobalISel\call-translator-tail-call.ll --check-prefix=DARWIN
# executed command: 'c:\_work\llvm-project\llvm-project\build\bin\llc.exe' 'C:\_work\llvm-project\llvm-project\llvm\test\CodeGen\AArch64\GlobalISel\call-translator-tail-call.ll' -stop-after=irtranslator -verify-machineinstrs -mtriple aarch64-apple-darwin -global-isel -o -
# 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\llvm\test\CodeGen\AArch64\GlobalISel\call-translator-tail-call.ll' --check-prefix=DARWIN
# .---command stderr------------
# | C:\_work\llvm-project\llvm-project\llvm\test\CodeGen\AArch64\GlobalISel\call-translator-tail-call.ll:363:17: error: DARWIN-NEXT: expected string not found in input
# |  ; DARWIN-NEXT: ADJCALLSTACKDOWN 0, 0, implicit-def $sp, implicit $sp
# |                 ^
# | <stdin>:968:24: note: scanning from here
# |  %0:_(p0) = COPY %1(p0)
# |                        ^
# | <stdin>:969:25: note: possible intended match here
# |  TCRETURNdi @simple_fn, 0, csr_darwin_aarch64_aapcs, implicit $sp
# |                         ^
# | 
# | Input file: <stdin>
# | Check file: C:\_work\llvm-project\llvm-project\llvm\test\CodeGen\AArch64\GlobalISel\call-translator-tail-call.ll
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
# | <<<<<<
# |             .
# |             .
# |             .
# |           963: constants: [] 
# |           964: machineFunctionInfo: {} 
# |           965: body: | 
# |           966:  bb.1 (%ir-block.0): 
# |           967:  %1:_(p0) = G_FRAME_INDEX %fixed-stack.0 
# |           968:  %0:_(p0) = COPY %1(p0) 
# | next:363'0                           {   search range start (exclusive)
# | next:363'1                               error: no match found in search range
# |           969:  TCRETURNdi @simple_fn, 0, csr_darwin_aarch64_aapcs, implicit $sp 
# | next:363'2                             ?                                           possible intended match
# |           970: ... 
# |           971: --- 
# |           972: name: test_inreg 
# | next:363'3                     }  search range end (exclusive)
# |           973: alignment: 4 
# |           974: exposesReturnsTwice: false 
# |           975: legalized: false 
# |           976: regBankSelected: false 
# |           977: selected: false 
# |             .
# |             .
# |             .
# | >>>>>>
# `-----------------------------
# 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/206718


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