[llvm] [NFC][AMDGPU] Simplify scratch address materialization in SVS frame index fallback (PR #208624)

Mon Jul 13 08:54:23 PDT 2026

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `clang-m68k-linux-cross` running on `suse-gary-m68k-cross` while building `llvm` at step 5 "ninja check 1".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/27/builds/1643

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 5 (ninja check 1) failure: stage 1 checked (failure)
******************** TEST 'Clang :: CodeGen/SystemZ/zos-check-lanuage.c' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 4
env SDKROOT="/" /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/bin/clang -target s390x-none-zos -emit-llvm -S -o - -x c - < /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/clang/test/CodeGen/SystemZ/zos-check-lanuage.c | grep -v DIFile > /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/tools/clang/test/CodeGen/SystemZ/Output/zos-check-lanuage.c.tmp1.ll
# executed command: env SDKROOT=/ /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/bin/clang -target s390x-none-zos -emit-llvm -S -o - -x c -
# executed command: grep -v DIFile
# RUN: at line 5
env SDKROOT="/" /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/bin/clang -target s390x-none-zos -emit-ast -o /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/tools/clang/test/CodeGen/SystemZ/Output/zos-check-lanuage.c.tmp.ast /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/clang/test/CodeGen/SystemZ/zos-check-lanuage.c
# executed command: env SDKROOT=/ /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/bin/clang -target s390x-none-zos -emit-ast -o /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/tools/clang/test/CodeGen/SystemZ/Output/zos-check-lanuage.c.tmp.ast /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/clang/test/CodeGen/SystemZ/zos-check-lanuage.c
# RUN: at line 6
env SDKROOT="/" /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/bin/clang -target s390x-none-zos -emit-llvm -S -o - -x ast - < /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/tools/clang/test/CodeGen/SystemZ/Output/zos-check-lanuage.c.tmp.ast | grep -v DIFile > /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/tools/clang/test/CodeGen/SystemZ/Output/zos-check-lanuage.c.tmp2.ll
# executed command: env SDKROOT=/ /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/bin/clang -target s390x-none-zos -emit-llvm -S -o - -x ast -
# executed command: grep -v DIFile
# RUN: at line 7
diff /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/tools/clang/test/CodeGen/SystemZ/Output/zos-check-lanuage.c.tmp1.ll /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/tools/clang/test/CodeGen/SystemZ/Output/zos-check-lanuage.c.tmp2.ll
# executed command: diff /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/tools/clang/test/CodeGen/SystemZ/Output/zos-check-lanuage.c.tmp1.ll /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/tools/clang/test/CodeGen/SystemZ/Output/zos-check-lanuage.c.tmp2.ll
# RUN: at line 10
/var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/bin/FileCheck --check-prefix CHECK-C /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/clang/test/CodeGen/SystemZ/zos-check-lanuage.c < /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/tools/clang/test/CodeGen/SystemZ/Output/zos-check-lanuage.c.tmp1.ll
# executed command: /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/bin/FileCheck --check-prefix CHECK-C /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/clang/test/CodeGen/SystemZ/zos-check-lanuage.c
# RUN: at line 14
env SDKROOT="/" /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/bin/clang -target s390x-none-zos -emit-llvm -S -o - -x c++ - < /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/clang/test/CodeGen/SystemZ/zos-check-lanuage.c | grep -v DIFile > /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/tools/clang/test/CodeGen/SystemZ/Output/zos-check-lanuage.c.tmp1.ll
# executed command: env SDKROOT=/ /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/bin/clang -target s390x-none-zos -emit-llvm -S -o - -x c++ -
# executed command: grep -v DIFile
# RUN: at line 15
env SDKROOT="/" /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/bin/clang -target s390x-none-zos -emit-ast -o /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/tools/clang/test/CodeGen/SystemZ/Output/zos-check-lanuage.c.tmp.ast -x c++ /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/clang/test/CodeGen/SystemZ/zos-check-lanuage.c
# executed command: env SDKROOT=/ /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/bin/clang -target s390x-none-zos -emit-ast -o /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/tools/clang/test/CodeGen/SystemZ/Output/zos-check-lanuage.c.tmp.ast -x c++ /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/llvm/clang/test/CodeGen/SystemZ/zos-check-lanuage.c
# RUN: at line 16
env SDKROOT="/" /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/bin/clang -target s390x-none-zos -emit-llvm -S -o - -x ast - < /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/tools/clang/test/CodeGen/SystemZ/Output/zos-check-lanuage.c.tmp.ast | grep -v DIFile > /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/tools/clang/test/CodeGen/SystemZ/Output/zos-check-lanuage.c.tmp2.ll
# executed command: env SDKROOT=/ /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/bin/clang -target s390x-none-zos -emit-llvm -S -o - -x ast -
# executed command: grep -v DIFile
# RUN: at line 17
diff /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/tools/clang/test/CodeGen/SystemZ/Output/zos-check-lanuage.c.tmp1.ll /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/tools/clang/test/CodeGen/SystemZ/Output/zos-check-lanuage.c.tmp2.ll
# executed command: diff /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/tools/clang/test/CodeGen/SystemZ/Output/zos-check-lanuage.c.tmp1.ll /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/tools/clang/test/CodeGen/SystemZ/Output/zos-check-lanuage.c.tmp2.ll
# .---command stdout------------
# | *** /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/tools/clang/test/CodeGen/SystemZ/Output/zos-check-lanuage.c.tmp1.ll
# | --- /var/lib/buildbot/workers/suse-gary-m68k-cross/clang-m68k-linux-cross/stage1/tools/clang/test/CodeGen/SystemZ/Output/zos-check-lanuage.c.tmp2.ll
# | ***************
# | *** 21,27 ****
# |   !2 = !{i32 2, !"zos_product_patchlevel", i32 0}
# |   !3 = !{i32 1, !"zos_product_id", !"clang"}
# |   !4 = !{i32 1, !"zos_cu_language", !"C++"}
# | ! !5 = !{i32 7, !"zos_translation_time", i32 1783957933}
# |   !6 = !{i32 1, !"zos_le_char_mode", !"ascii"}
# |   !7 = !{i32 7, !"frame-pointer", i32 2}
# |   !8 = !{!"clang version 23.0.0git (https://github.com/llvm/llvm-project.git 6ce86d47ca095f1f2c911520bc2c845ff09c5fba)"}
# | --- 21,27 ----
# |   !2 = !{i32 2, !"zos_product_patchlevel", i32 0}
...

```

</details>

https://github.com/llvm/llvm-project/pull/208624