c897c13dde
Converts AMDGPUResourceUsageAnalysis pass from Module to MachineFunction pass. Moves function resource info propagation to to MC layer (through helpers in AMDGPUMCResourceInfo) by generating MCExprs for every function resource which the emitters have been prepped for. Fixes https://github.com/llvm/llvm-project/issues/64863
31 lines
1.3 KiB
LLVM
31 lines
1.3 KiB
LLVM
; RUN: llc -mtriple=amdgcn -verify-machineinstrs -asm-verbose < %s | FileCheck -check-prefix=SI %s
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; RUN: llc -mtriple=amdgcn-unknown-amdhsa -verify-machineinstrs -asm-verbose -mattr=-flat-for-global < %s | FileCheck -check-prefix=SI %s
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declare i32 @llvm.amdgcn.mbcnt.lo(i32, i32) #0
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declare i32 @llvm.amdgcn.mbcnt.hi(i32, i32) #0
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; SI-LABEL: {{^}}foo:
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; SI: .section .AMDGPU.csdata
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; SI: ; Kernel info:
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; SI: ; TotalNumSgprs: {{[0-9]+}}
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; SI: ; NumVgprs: {{[0-9]+}}
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define amdgpu_kernel void @foo(ptr addrspace(1) noalias %out, ptr addrspace(1) %abase, ptr addrspace(1) %bbase) nounwind {
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%mbcnt.lo = call i32 @llvm.amdgcn.mbcnt.lo(i32 -1, i32 0);
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%tid = call i32 @llvm.amdgcn.mbcnt.hi(i32 -1, i32 %mbcnt.lo)
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%aptr = getelementptr i32, ptr addrspace(1) %abase, i32 %tid
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%bptr = getelementptr i32, ptr addrspace(1) %bbase, i32 %tid
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%outptr = getelementptr i32, ptr addrspace(1) %out, i32 %tid
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%a = load i32, ptr addrspace(1) %aptr, align 4
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%b = load i32, ptr addrspace(1) %bptr, align 4
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%result = add i32 %a, %b
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store i32 %result, ptr addrspace(1) %outptr, align 4
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ret void
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}
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; SI-LABEL: {{^}}one_vgpr_used:
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; SI: NumVgprs: 1
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define amdgpu_kernel void @one_vgpr_used(ptr addrspace(1) %out, i32 %x) nounwind {
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store i32 %x, ptr addrspace(1) %out, align 4
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ret void
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}
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