AMDHSA: Code object v3 updates

- Do not emit following assembler directives:
  - .hsa_code_object_version
  - .hsa_code_object_isa
  - .amd_amdgpu_isa
  - .amd_amdgpu_hsa_metadata
  - .amd_amdgpu_pal_metadata
- Do not emit .note entries
- Cleanup and bring in sync kernel descriptor header file
- Emit kernel descriptor into .rodata with appropriate relocations and
  alignments

llvm-svn: 334519

1 files changed, 48 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/AMDGPU/code-object-v3.ll b/llvm/test/CodeGen/AMDGPU/code-object-v3.ll
new file mode 100644
index 00000000000..42ddf19a93f
--- /dev/null
+++ b/llvm/test/CodeGen/AMDGPU/code-object-v3.ll
@@ -0,0 +1,48 @@
+; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx803 -mattr=+code-object-v3 < %s | FileCheck --check-prefixes=ALL-ASM,OSABI-AMDHSA-ASM %s
+; RUN: llc -filetype=obj -mtriple=amdgcn-amd-amdhsa -mcpu=gfx803 -mattr=+code-object-v3 < %s | llvm-readobj -elf-output-style=GNU -notes -relocations -sections -symbols | FileCheck --check-prefixes=ALL-ELF,OSABI-AMDHSA-ELF %s
+
+; OSABI-AMDHSA-ASM-NOT: .hsa_code_object_version
+; OSABI-AMDHSA-ASM-NOT: .hsa_code_object_isa
+; OSABI-AMDHSA-ASM-NOT: .amd_amdgpu_isa
+; OSABI-AMDHSA-ASM-NOT: .amd_amdgpu_hsa_metadata
+; OSABI-AMDHSA-ASM-NOT: .amd_amdgpu_pal_metadata
+
+; OSABI-AMDHSA-ELF: Section Headers
+; OSABI-AMDHSA-ELF: .text   PROGBITS {{[0-9]+}} {{[0-9]+}} {{[0-9a-f]+}} {{[0-9]+}} AX {{[0-9]+}} {{[0-9]+}} 256
+; OSABI-AMDHSA-ELF: .rodata PROGBITS {{[0-9]+}} {{[0-9]+}} {{[0-9a-f]+}} {{[0-9]+}}  A {{[0-9]+}} {{[0-9]+}} 64
+
+; OSABI-AMDHSA-ELF: Relocation section '.rela.rodata' at offset
+; OSABI-AMDHSA-ELF: 0000000000000010 0000000300000005 R_AMDGPU_REL64 0000000000000000 .text + 10
+; OSABI-AMDHSA-ELF: 0000000000000050 0000000300000005 R_AMDGPU_REL64 0000000000000000 .text + 110
+
+; OSABI-AMDHSA-ELF: Symbol table '.symtab' contains {{[0-9]+}} entries
+; OSABI-AMDHSA-ELF: {{[0-9]+}}: 0000000000000000 {{[0-9]+}} FUNC   LOCAL  DEFAULT {{[0-9]+}} fadd
+; OSABI-AMDHSA-ELF: {{[0-9]+}}: 0000000000000100 {{[0-9]+}} FUNC   LOCAL  DEFAULT {{[0-9]+}} fsub
+; OSABI-AMDHSA-ELF: {{[0-9]+}}: 0000000000000000 64         OBJECT GLOBAL DEFAULT {{[0-9]+}} fadd.kd
+; OSABI-AMDHSA-ELF: {{[0-9]+}}: 0000000000000040 64         OBJECT GLOBAL DEFAULT {{[0-9]+}} fsub.kd
+
+; OSABI-AMDHSA-ELF-NOT: Displaying notes found
+
+define amdgpu_kernel void @fadd(
+    float addrspace(1)* %r,
+    float addrspace(1)* %a,
+    float addrspace(1)* %b) {
+entry:
+  %a.val = load float, float addrspace(1)* %a
+  %b.val = load float, float addrspace(1)* %b
+  %r.val = fadd float %a.val, %b.val
+  store float %r.val, float addrspace(1)* %r
+  ret void
+}
+
+define amdgpu_kernel void @fsub(
+    float addrspace(1)* %r,
+    float addrspace(1)* %a,
+    float addrspace(1)* %b) {
+entry:
+  %a.val = load float, float addrspace(1)* %a
+  %b.val = load float, float addrspace(1)* %b
+  %r.val = fsub float %a.val, %b.val
+  store float %r.val, float addrspace(1)* %r
+  ret void
+}