[clang] [clang][test] Modernize 2004-02-13-Memset.c to use FileCheck (PR #191092)

[Michał Górny via cfe-commits]

mgorny wrote:

This change broke tests on 32-bit platforms, where `memset()` doesn't take a `i64`:

```
FAIL: Clang :: CodeGen/2004-02-13-Memset.c (3670 of 24534)
******************** TEST 'Clang :: CodeGen/2004-02-13-Memset.c' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 1
/var/tmp/portage/llvm-core/clang-23.0.0.9999/work/x/y/clang-abi_x86_32.x86/bin/clang -cc1 -internal-isystem /var/tmp/portage/llvm-core/clang-23.0.0.9999/work/x/y/clang-abi_x86_32.x86/bin/../../../../lib/clang/23/include -nostdsysteminc  /var/tmp/portage/llvm-core/clang-23.0.0.9999/work/clang/test/CodeGen/2004-02-13-Memset.c -emit-llvm -o - | /usr/lib/llvm/23/bin/FileCheck /var/tmp/portage/llvm-core/clang-23.0.0.9999/work/clang/test/CodeGen/2004-02-13-Memset.c
# executed command: /var/tmp/portage/llvm-core/clang-23.0.0.9999/work/x/y/clang-abi_x86_32.x86/bin/clang -cc1 -internal-isystem /var/tmp/portage/llvm-core/clang-23.0.0.9999/work/x/y/clang-abi_x86_32.x86/bin/../../../../lib/clang/23/include -nostdsysteminc /var/tmp/portage/llvm-core/clang-23.0.0.9999/work/clang/test/CodeGen/2004-02-13-Memset.c -emit-llvm -o -
# executed command: /usr/lib/llvm/23/bin/FileCheck /var/tmp/portage/llvm-core/clang-23.0.0.9999/work/clang/test/CodeGen/2004-02-13-Memset.c
# .---command stderr------------
# | /var/tmp/portage/llvm-core/clang-23.0.0.9999/work/clang/test/CodeGen/2004-02-13-Memset.c:8:12: error: CHECK: expected string not found in input
# |  // CHECK: call void @llvm.memset{{.*}}i8 4, i64 1000
# |            ^
# | <stdin>:1:1: note: scanning from here
# | ; ModuleID = '/var/tmp/portage/llvm-core/clang-23.0.0.9999/work/clang/test/CodeGen/2004-02-13-Memset.c'
# | ^
# | <stdin>:14:2: note: possible intended match here
# |  call void @llvm.memset.p0.i32(ptr align 4 %0, i8 4, i32 1000, i1 false)
# |  ^
# | 
# | Input file: <stdin>
# | Check file: /var/tmp/portage/llvm-core/clang-23.0.0.9999/work/clang/test/CodeGen/2004-02-13-Memset.c
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
# | <<<<<<
# |            1: ; ModuleID = '/var/tmp/portage/llvm-core/clang-23.0.0.9999/work/clang/test/CodeGen/2004-02-13-Memset.c' 
# | check:8'0     X~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error: no match found
# |            2: source_filename = "/var/tmp/portage/llvm-core/clang-23.0.0.9999/work/clang/test/CodeGen/2004-02-13-Memset.c" 
# | check:8'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |            3: target datalayout = "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-i128:128-f64:32:64-f80:32-n8:16:32-S128" 
# | check:8'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |            4: target triple = "i686-pc-linux-gnu" 
# | check:8'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |            5:  
# | check:8'0     ~
# |            6: ; Function Attrs: noinline nounwind optnone 
# | check:8'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |            .
# |            .
# |            .
# |            9:  %X.addr = alloca ptr, align 4 
# | check:8'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |           10:  %Y.addr = alloca ptr, align 4 
# | check:8'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |           11:  store ptr %X, ptr %X.addr, align 4 
# | check:8'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |           12:  store ptr %Y, ptr %Y.addr, align 4 
# | check:8'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |           13:  %0 = load ptr, ptr %X.addr, align 4 
# | check:8'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |           14:  call void @llvm.memset.p0.i32(ptr align 4 %0, i8 4, i32 1000, i1 false) 
# | check:8'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# | check:8'1      ?                                                                        possible intended match
# |           15:  %1 = load ptr, ptr %Y.addr, align 4 
# | check:8'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |           16:  call void @llvm.memset.p0.i32(ptr align 1 %1, i8 0, i32 100, i1 false) 
# | check:8'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |           17:  ret void 
# | check:8'0     ~~~~~~~~~~
# |           18: } 
# | check:8'0     ~~
# |           19:  
# | check:8'0     ~
# |            .
# |            .
# |            .
# | >>>>>>
# `-----------------------------
# error: command failed with exit status: 1

--

********************
```

https://github.com/llvm/llvm-project/pull/191092