[llvm] [X86] Lower scalar integer div/rem to FP division (PR #216589)

[via llvm-commits]

github-actions[bot] wrote:

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

* 140146 tests passed
* 3723 tests skipped
* 2 tests failed

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

### LLVM
<details>
<summary>LLVM.DebugInfo/X86/dbg-prolog-end-backup-loc.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\DebugInfo\X86\dbg-prolog-end-backup-loc.ll -o - | c:\_work\llvm-project\llvm-project\build\bin\filecheck.exe C:\_work\llvm-project\llvm-project\llvm\test\DebugInfo\X86\dbg-prolog-end-backup-loc.ll
# executed command: 'c:\_work\llvm-project\llvm-project\build\bin\llc.exe' 'C:\_work\llvm-project\llvm-project\llvm\test\DebugInfo\X86\dbg-prolog-end-backup-loc.ll' -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\DebugInfo\X86\dbg-prolog-end-backup-loc.ll'
# .---command stderr------------
# | C:\_work\llvm-project\llvm-project\llvm\test\DebugInfo\X86\dbg-prolog-end-backup-loc.ll:28:10: error: CHECK: expected string not found in input
# | ; CHECK: movl %edi, %edx
# |          ^
# | <stdin>:12:12: note: scanning from here
# |  .loc 0 2 0 prologue_end # foo.c:2:0
# |            ^
# | <stdin>:13:2: note: possible intended match here
# |  addl %esi, %edi
# |  ^
# | C:\_work\llvm-project\llvm-project\llvm\test\DebugInfo\X86\dbg-prolog-end-backup-loc.ll:40:16: error: CHECK-LABEL: expected string not found in input
# | ; CHECK-LABEL: foo:
# |                ^
# | <stdin>:15:9: note: scanning from here
# | # %bb.1: # %while.body.preheader
# |         ^
# | <stdin>:23:25: note: possible intended match here
# |  .loc 0 5 9 is_stmt 1 # foo.c:5:9
# |                         ^
# | 
# | Input file: <stdin>
# | Check file: C:\_work\llvm-project\llvm-project\llvm\test\DebugInfo\X86\dbg-prolog-end-backup-loc.ll
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
# | <<<<<<
# |             .
# |             .
# |             .
# |             7:  .type foo, at function 
# |             8: foo: # @foo 
# |             9: .Lfunc_begin0: 
# |            10:  .cfi_startproc 
# |            11: # %bb.0: # %entry 
# |            12:  .loc 0 2 0 prologue_end # foo.c:2:0 
# | check:28'0               {                            search range start (exclusive)
# | check:28'1                                            error: no match found in search range
# |            13:  addl %esi, %edi 
# | check:28'2      ?                 possible intended match
# |            14:  je .LBB0_4 
# |            15: # %bb.1: # %while.body.preheader 
# | check:28'3             }                          search range end (exclusive)
# | label:40'0            {                           search range start (exclusive)
# | label:40'1                                        error: no match found in search range
# |            16:  movl glob(%rip), %eax 
# |            17:  .loc 0 0 0 is_stmt 0 # :0:0 
# |            18: .Ltmp0: 
# |            19:  .p2align 4 
# |            20: .LBB0_2: # %while.body 
# |            21:  # =>This Inner Loop Header: Depth=1 
# |            22: .Ltmp1: 
# |            23:  .loc 0 5 9 is_stmt 1 # foo.c:5:9 
# | label:40'2                             ?           possible intended match
# |            24:  decl %eax 
# |            25:  .loc 0 6 9 # foo.c:6:9 
# |            26:  xorps %xmm0, %xmm0 
# |            27:  cvtsi2sd %edi, %xmm0 
# |            28:  xorps %xmm1, %xmm1 
# |             .
# |             .
# |             .
# |           215:  .quad glob 
# |           216: .Ldebug_addr_end0: 
# |           217:  .ident "clang" 
# |           218:  .section ".note.GNU-stack","", at progbits 
# |           219:  .section .debug_line,"", at progbits 
# |           220: .Lline_table_start0: 
# | label:40'3                          } search range end (exclusive)
# | >>>>>>
# `-----------------------------
# error: command failed with exit status: 1

--

```
</details>

### Clang
<details>
<summary>Clang.ClangScanDeps/modules-implicit-dot-private.m</summary>

```
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 4
rm -rf C:\_work\llvm-project\llvm-project\build\tools\clang\test\ClangScanDeps\Output\modules-implicit-dot-private.m.tmp && mkdir C:\_work\llvm-project\llvm-project\build\tools\clang\test\ClangScanDeps\Output\modules-implicit-dot-private.m.tmp
# executed command: rm -rf 'C:\_work\llvm-project\llvm-project\build\tools\clang\test\ClangScanDeps\Output\modules-implicit-dot-private.m.tmp'
# note: command had no output on stdout or stderr
# executed command: mkdir 'C:\_work\llvm-project\llvm-project\build\tools\clang\test\ClangScanDeps\Output\modules-implicit-dot-private.m.tmp'
# note: command had no output on stdout or stderr
# RUN: at line 5
split-file C:\_work\llvm-project\llvm-project\clang\test\ClangScanDeps\modules-implicit-dot-private.m C:\_work\llvm-project\llvm-project\build\tools\clang\test\ClangScanDeps\Output\modules-implicit-dot-private.m.tmp
# executed command: split-file 'C:\_work\llvm-project\llvm-project\clang\test\ClangScanDeps\modules-implicit-dot-private.m' 'C:\_work\llvm-project\llvm-project\build\tools\clang\test\ClangScanDeps\Output\modules-implicit-dot-private.m.tmp'
# .---command stderr------------
# | split-file: error: C:\_work\llvm-project\llvm-project\build\tools\clang\test\ClangScanDeps\Output\modules-implicit-dot-private.m.tmp: permission denied
# `-----------------------------
# 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/216589