[AMDGPU] implemented pal metadata
Summary:
For the amdpal OS type:
We write an AMDGPU_PAL_METADATA record in the .note section in the ELF
(or as an assembler directive). It contains key=value pairs of 32 bit
ints. It is a merge of metadata from codegen of the shaders, and
metadata provided by the frontend as _amdgpu_pal_metadata IR metadata.
Where both sources have a key=value with the same key, the two values
are ORed together.
This .note record is part of the amdpal ABI and will be documented in
docs/AMDGPUUsage.rst in a future commit.
Eventually the amdpal OS type will stop generating the .AMDGPU.config
section once the frontend has safely moved over to using the .note
records above instead of .AMDGPU.config.
Reviewers: arsenm, nhaehnle, dstuttard
Subscribers: kzhuravl, wdng, yaxunl, llvm-commits, t-tye
Differential Revision: https://reviews.llvm.org/D37753
llvm-svn: 314829
diff --git a/llvm/test/CodeGen/AMDGPU/amdpal-cs.ll b/llvm/test/CodeGen/AMDGPU/amdpal-cs.ll
index d722a4c..a217478 100644
--- a/llvm/test/CodeGen/AMDGPU/amdpal-cs.ll
+++ b/llvm/test/CodeGen/AMDGPU/amdpal-cs.ll
@@ -2,10 +2,9 @@
; RUN: llc -mtriple=amdgcn--amdpal -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=VI -enable-var-scope %s
; RUN: llc -mtriple=amdgcn--amdpal -mcpu=gfx900 -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=GFX9 -enable-var-scope %s
-; amdpal compute shader: check for 47176 (COMPUTE_PGM_RSRC1) in .AMDGPU.config
-; GCN-LABEL: .AMDGPU.config
-; GCN: .long 47176
+; amdpal compute shader: check for 0x2e12 (COMPUTE_PGM_RSRC1) in pal metadata
; GCN-LABEL: {{^}}cs_amdpal:
+; GCN: .amdgpu_pal_metadata{{.*}}0x2e12,
define amdgpu_cs half @cs_amdpal(half %arg0) {
%add = fadd half %arg0, 1.0
ret half %add