[llvm] [AMDGPU][True16][CodeGen] true16 codegen pattern for fma (PR #122950)

LLVM Continuous Integration via llvm-commits llvm-commits at lists.llvm.org
Thu Feb 13 23:29:24 PST 2025 

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `llvm-clang-x86_64-gcc-ubuntu` running on `sie-linux-worker3` while building `llvm` at step 6 "test-build-unified-tree-check-all".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/174/builds/13030

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

```
Step 6 (test-build-unified-tree-check-all) failure: test (failure)
******************** TEST 'LLVM :: CodeGen/AMDGPU/preserve-hi16.ll' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 2: /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/llc -mtriple=amdgcn -mcpu=gfx803 -verify-machineinstrs < /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AMDGPU/preserve-hi16.ll | /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/FileCheck --check-prefixes=GFX8 /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AMDGPU/preserve-hi16.ll
+ /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/llc -mtriple=amdgcn -mcpu=gfx803 -verify-machineinstrs
+ /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/FileCheck --check-prefixes=GFX8 /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AMDGPU/preserve-hi16.ll
RUN: at line 3: /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/llc -mtriple=amdgcn -mcpu=gfx900 -verify-machineinstrs < /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AMDGPU/preserve-hi16.ll | /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/FileCheck --check-prefixes=GFX9ALL,GFX900 /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AMDGPU/preserve-hi16.ll
+ /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/llc -mtriple=amdgcn -mcpu=gfx900 -verify-machineinstrs
+ /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/FileCheck --check-prefixes=GFX9ALL,GFX900 /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AMDGPU/preserve-hi16.ll
RUN: at line 4: /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/llc -mtriple=amdgcn -mcpu=gfx906 -verify-machineinstrs < /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AMDGPU/preserve-hi16.ll | /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/FileCheck --check-prefixes=GFX9ALL,GFX906 /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AMDGPU/preserve-hi16.ll
+ /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/llc -mtriple=amdgcn -mcpu=gfx906 -verify-machineinstrs
+ /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/FileCheck --check-prefixes=GFX9ALL,GFX906 /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AMDGPU/preserve-hi16.ll
RUN: at line 5: /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/llc -mtriple=amdgcn -mcpu=gfx1010 -verify-machineinstrs < /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AMDGPU/preserve-hi16.ll | /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/FileCheck -check-prefixes=GFX10 /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AMDGPU/preserve-hi16.ll
+ /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/llc -mtriple=amdgcn -mcpu=gfx1010 -verify-machineinstrs
+ /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/FileCheck -check-prefixes=GFX10 /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AMDGPU/preserve-hi16.ll
RUN: at line 6: /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/llc -mtriple=amdgcn -mcpu=gfx1100 -amdgpu-enable-delay-alu=0 -mattr=+real-true16 -verify-machineinstrs < /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AMDGPU/preserve-hi16.ll | /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/FileCheck -check-prefixes=GFX11,GFX11-TRUE16 /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AMDGPU/preserve-hi16.ll
+ /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/llc -mtriple=amdgcn -mcpu=gfx1100 -amdgpu-enable-delay-alu=0 -mattr=+real-true16 -verify-machineinstrs
+ /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/FileCheck -check-prefixes=GFX11,GFX11-TRUE16 /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AMDGPU/preserve-hi16.ll
/home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AMDGPU/preserve-hi16.ll:817:22: error: GFX11-TRUE16-NEXT: expected string not found in input
; GFX11-TRUE16-NEXT: v_fma_f16 v0.l, v0.l, v0.h, v1.l
                     ^
<stdin>:865:26: note: scanning from here
 v_mov_b16_e32 v1.l, v2.l
                         ^
<stdin>:866:2: note: possible intended match here
 v_fmac_f16_e32 v1.l, v0.l, v0.h
 ^

Input file: <stdin>
Check file: /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AMDGPU/preserve-hi16.ll

-dump-input=help explains the following input dump.

Input was:
<<<<<<
             1:  .section .AMDGPU.config,"", at progbits 
             2:  .long 47176 
             3:  .long 0 
             4:  .long 47180 
             5:  .long 0 
             6:  .long 47200 
             7:  .long 0 
             8:  .long 4 
             9:  .long 0 
            10:  .long 8 
            11:  .long 0 
            12:  .text 
            13:  .globl shl_i16 ; -- Begin function shl_i16 
...

```

</details>

https://github.com/llvm/llvm-project/pull/122950

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