[llvm] [AMDGPU] Include unused preload kernarg in KD total SGPR count (PR #104743)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,14 @@
+; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx940 -filetype=obj < %s > %t
+; RUN: llvm-objdump -s -j .rodata %t | FileCheck --check-prefix=OBJDUMP %s
+
+; OBJDUMP: Contents of section .rodata:
+; OBJDUMP-NEXT: 0000 00000000 00000000 10010000 00000000
+; OBJDUMP-NEXT: 0010 00000000 00000000 00000000 00000000
+; OBJDUMP-NEXT: 0020 00000000 00000000 00000000 00000000
+; OBJDUMP-NEXT: 0030 4000af00 94130000 1a000400 00000000
+; OBJDUMP-NOT: 0030 0000af00 94130000 1a000400 00000000
+
+; Include preloaded SGPRs that are not explicitly used in the kernel in
+; GRANULATED_WAVEFRONT_SGPR_COUNT.
+
+define amdgpu_kernel void @amdhsa_kernarg_preload_num_sgprs(i128 inreg) { ret void }
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arsenm wrote:

Test cases with more interaction with ordinary user SGPRs? 

https://github.com/llvm/llvm-project/pull/104743