ef906f287e
Since 814a0abccefdd2e52b1b507f21ce842b689dbedd, this would break if we had a function in the module that becomes dead in any codegen IR pass. The function wasn't deleted since it was initially used in dead code, but is detached from the call graph and doesn't appear in the PO traversal. Do a second walk over the module to populate the resources of any functions which weren't already processed.
35 lines
802 B
LLVM
35 lines
802 B
LLVM
; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -o - %s | FileCheck -check-prefix=GCN %s
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; Make sure there's no assertion when trying to report the resource
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; usage for a function which becomes dead during codegen.
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@gv.fptr0 = external hidden unnamed_addr addrspace(4) constant void()*, align 4
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; GCN-LABEL: unreachable:
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; Function info:
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; codeLenInByte = 4
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define internal fastcc void @unreachable() {
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%fptr = load void()*, void()* addrspace(4)* @gv.fptr0
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call void %fptr()
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unreachable
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}
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; GCN-LABEL: entry:
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; GCN-NOT: s_swappc_b64
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; GCN: s_endpgm
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; GCN: .amdhsa_private_segment_fixed_size 0
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; GCN: .amdhsa_uses_dynamic_stack 0
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define amdgpu_kernel void @entry() {
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bb0:
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br i1 false, label %bb1, label %bb2
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bb1:
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tail call fastcc void @unreachable()
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unreachable
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bb2:
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ret void
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}
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