[llvm] [AMDGPU] Fix uniform fcopysign pattern (PR #218644)

[via llvm-commits]

github-actions[bot] wrote:

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

* 141320 tests passed
* 3241 tests skipped
* 1 test failed

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

### LLVM
<details>
<summary>LLVM.Transforms/ThinLTOBitcodeWriter/cfi_dso_local_equivalent.ll</summary>

```
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 6
c:\_work\llvm-project\llvm-project\build\bin\opt.exe -thinlto-bc -thinlto-split-lto-unit -o C:\_work\llvm-project\llvm-project\build\test\Transforms\ThinLTOBitcodeWriter\Output\cfi_dso_local_equivalent.ll.tmp C:\_work\llvm-project\llvm-project\llvm\test\Transforms\ThinLTOBitcodeWriter\cfi_dso_local_equivalent.ll
# executed command: 'c:\_work\llvm-project\llvm-project\build\bin\opt.exe' -thinlto-bc -thinlto-split-lto-unit -o 'C:\_work\llvm-project\llvm-project\build\test\Transforms\ThinLTOBitcodeWriter\Output\cfi_dso_local_equivalent.ll.tmp' 'C:\_work\llvm-project\llvm-project\llvm\test\Transforms\ThinLTOBitcodeWriter\cfi_dso_local_equivalent.ll'
# note: command had no output on stdout or stderr
# RUN: at line 7
c:\_work\llvm-project\llvm-project\build\bin\llvm-modextract.exe -b -n 0 -o - C:\_work\llvm-project\llvm-project\build\test\Transforms\ThinLTOBitcodeWriter\Output\cfi_dso_local_equivalent.ll.tmp | c:\_work\llvm-project\llvm-project\build\bin\llvm-dis.exe | c:\_work\llvm-project\llvm-project\build\bin\filecheck.exe --check-prefix=M0 C:\_work\llvm-project\llvm-project\llvm\test\Transforms\ThinLTOBitcodeWriter\cfi_dso_local_equivalent.ll
# executed command: 'c:\_work\llvm-project\llvm-project\build\bin\llvm-modextract.exe' -b -n 0 -o - 'C:\_work\llvm-project\llvm-project\build\test\Transforms\ThinLTOBitcodeWriter\Output\cfi_dso_local_equivalent.ll.tmp'
# note: command had no output on stdout or stderr
# executed command: 'c:\_work\llvm-project\llvm-project\build\bin\llvm-dis.exe'
# note: command had no output on stdout or stderr
# executed command: 'c:\_work\llvm-project\llvm-project\build\bin\filecheck.exe' --check-prefix=M0 'C:\_work\llvm-project\llvm-project\llvm\test\Transforms\ThinLTOBitcodeWriter\cfi_dso_local_equivalent.ll'
# .---command stderr------------
# | C:\_work\llvm-project\llvm-project\llvm\test\Transforms\ThinLTOBitcodeWriter\cfi_dso_local_equivalent.ll:13:7: error: M0: expected string not found in input
# | ; M0: @f.{{[0-9a-f]+}} = hidden alias ptr, ptr @f
# |       ^
# | <stdin>:9:78: note: scanning from here
# | @vtable.61b17fea1cac8585b7466274677b349b = external hidden constant [1 x ptr], !guid !0
# |                                                                              ^
# | <stdin>:22:12: note: possible intended match here
# | !1 = !{i32 1, !"EnableSplitLTOUnit", i32 1}
# |            ^
# | 
# | Input file: <stdin>
# | Check file: C:\_work\llvm-project\llvm-project\llvm\test\Transforms\ThinLTOBitcodeWriter\cfi_dso_local_equivalent.ll
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
# | <<<<<<
# |             1: ; ModuleID = '<stdin>' 
# |             2: source_filename = "C:\\_work\\llvm-project\\llvm-project\\llvm\\test\\Transforms\\ThinLTOBitcodeWriter\\cfi_dso_local_equivalent.ll" 
# |             3: target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128" 
# |             4: target triple = "x86_64-unknown-linux-gnu" 
# |             5:  
# |             6: module asm 
# |             7:  ".lto_set_conditional f,f.61b17fea1cac8585b7466274677b349b" 
# |             8:  
# |             9: @vtable.61b17fea1cac8585b7466274677b349b = external hidden constant [1 x ptr], !guid !0 
# | check:13'0                                                                                 {             search range start (exclusive)
# | check:13'1                                                                                               error: no match found in search range
# |            10:  
# |            11: define hidden void @f.61b17fea1cac8585b7466274677b349b() !guid !2 { 
# |            12:  ret void 
# |            13: } 
# |            14:  
# |            15: define ptr @use() !guid !3 { 
# |            16:  ret ptr @vtable.61b17fea1cac8585b7466274677b349b 
# |            17: } 
# |            18:  
# |            19: !llvm.module.flags = !{!1} 
# |            20:  
# |            21: !0 = !{i64 4704837285748696648} 
# |            22: !1 = !{i32 1, !"EnableSplitLTOUnit", i32 1} 
# | check:13'2                ?                                  possible intended match
# |            23: !2 = !{i64 7150609468352967210} 
# |            24: !3 = !{i64 -8056215433563474082} 
# |            25:  
# |            26: ^0 = module: (path: "<stdin>", hash: (4268611987, 3026468665, 3447820023, 4166318171, 3223476231)) 
# |            27: ^1 = gv: (name: "vtable.61b17fea1cac8585b7466274677b349b") ; guid = 4704837285748696648 
# |            28: ^2 = gv: (name: "f.61b17fea1cac8585b7466274677b349b", summaries: (function: (module: ^0, flags: (linkage: external, visibility: hidden, notEligibleToImport: 0, live: 0, dsoLocal: 1, canAutoHide: 0, importType: definition, noRenameOnPromotion: 0), insts: 1))) ; guid = 7150609468352967210 
# |            29: ^3 = gv: (name: "use", summaries: (function: (module: ^0, flags: (linkage: external, visibility: default, notEligibleToImport: 0, live: 0, dsoLocal: 0, canAutoHide: 0, importType: definition, noRenameOnPromotion: 0), insts: 1, refs: (^1)))) ; guid = 10390528640146077534 
# |            30: ^4 = flags: 8 
# |            31: ^5 = blockcount: 0 
# | check:13'3                        } 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/218644