bd9145c8c2
I was wrong last patch. I viewed the `Visited` set purely as a possible recursion deterrent where functions calling a callee multiple times are handled elsewhere. This doesn't consider cases where a function is called multiple times by different callers still part of the same call graph. New test shows the aforementioned case. Reapplies #111004, fixes #115562.
94 lines
3.3 KiB
LLVM
94 lines
3.3 KiB
LLVM
; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx90a < %s | FileCheck %s
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; CHECK-LABEL: {{^}}qux
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; CHECK: .set qux.num_vgpr, max(71, foo.num_vgpr)
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; CHECK: .set qux.num_agpr, max(0, foo.num_agpr)
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; CHECK: .set qux.numbered_sgpr, max(46, foo.numbered_sgpr)
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; CHECK: .set qux.private_seg_size, 16
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; CHECK: .set qux.uses_vcc, or(1, foo.uses_vcc)
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; CHECK: .set qux.uses_flat_scratch, or(0, foo.uses_flat_scratch)
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; CHECK: .set qux.has_dyn_sized_stack, or(0, foo.has_dyn_sized_stack)
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; CHECK: .set qux.has_recursion, or(1, foo.has_recursion)
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; CHECK: .set qux.has_indirect_call, or(0, foo.has_indirect_call)
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; CHECK-LABEL: {{^}}baz
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; CHECK: .set baz.num_vgpr, max(61, qux.num_vgpr)
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; CHECK: .set baz.num_agpr, max(0, qux.num_agpr)
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; CHECK: .set baz.numbered_sgpr, max(51, qux.numbered_sgpr)
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; CHECK: .set baz.private_seg_size, 16+(max(qux.private_seg_size))
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; CHECK: .set baz.uses_vcc, or(1, qux.uses_vcc)
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; CHECK: .set baz.uses_flat_scratch, or(0, qux.uses_flat_scratch)
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; CHECK: .set baz.has_dyn_sized_stack, or(0, qux.has_dyn_sized_stack)
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; CHECK: .set baz.has_recursion, or(1, qux.has_recursion)
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; CHECK: .set baz.has_indirect_call, or(0, qux.has_indirect_call)
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; CHECK-LABEL: {{^}}bar
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; CHECK: .set bar.num_vgpr, max(51, baz.num_vgpr)
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; CHECK: .set bar.num_agpr, max(0, baz.num_agpr)
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; CHECK: .set bar.numbered_sgpr, max(61, baz.numbered_sgpr)
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; CHECK: .set bar.private_seg_size, 16+(max(baz.private_seg_size))
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; CHECK: .set bar.uses_vcc, or(1, baz.uses_vcc)
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; CHECK: .set bar.uses_flat_scratch, or(0, baz.uses_flat_scratch)
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; CHECK: .set bar.has_dyn_sized_stack, or(0, baz.has_dyn_sized_stack)
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; CHECK: .set bar.has_recursion, or(1, baz.has_recursion)
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; CHECK: .set bar.has_indirect_call, or(0, baz.has_indirect_call)
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; CHECK-LABEL: {{^}}foo
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; CHECK: .set foo.num_vgpr, max(46, amdgpu.max_num_vgpr)
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; CHECK: .set foo.num_agpr, max(0, amdgpu.max_num_agpr)
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; CHECK: .set foo.numbered_sgpr, max(71, amdgpu.max_num_sgpr)
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; CHECK: .set foo.private_seg_size, 16
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; CHECK: .set foo.uses_vcc, 1
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; CHECK: .set foo.uses_flat_scratch, 0
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; CHECK: .set foo.has_dyn_sized_stack, 0
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; CHECK: .set foo.has_recursion, 1
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; CHECK: .set foo.has_indirect_call, 0
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define void @foo() {
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entry:
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call void @bar()
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call void asm sideeffect "", "~{v45}"()
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call void asm sideeffect "", "~{s70}"()
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ret void
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}
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define void @bar() {
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entry:
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call void @baz()
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call void asm sideeffect "", "~{v50}"()
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call void asm sideeffect "", "~{s60}"()
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ret void
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}
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define void @baz() {
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entry:
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call void @qux()
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call void asm sideeffect "", "~{v60}"()
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call void asm sideeffect "", "~{s50}"()
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ret void
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}
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define void @qux() {
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entry:
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call void @foo()
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call void asm sideeffect "", "~{v70}"()
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call void asm sideeffect "", "~{s45}"()
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ret void
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}
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; CHECK-LABEL: {{^}}usefoo
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; CHECK: .set usefoo.num_vgpr, max(32, foo.num_vgpr)
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; CHECK: .set usefoo.num_agpr, max(0, foo.num_agpr)
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; CHECK: .set usefoo.numbered_sgpr, max(33, foo.numbered_sgpr)
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; CHECK: .set usefoo.private_seg_size, 0+(max(foo.private_seg_size))
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; CHECK: .set usefoo.uses_vcc, or(1, foo.uses_vcc)
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; CHECK: .set usefoo.uses_flat_scratch, or(1, foo.uses_flat_scratch)
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; CHECK: .set usefoo.has_dyn_sized_stack, or(0, foo.has_dyn_sized_stack)
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; CHECK: .set usefoo.has_recursion, or(1, foo.has_recursion)
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; CHECK: .set usefoo.has_indirect_call, or(0, foo.has_indirect_call)
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define amdgpu_kernel void @usefoo() {
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call void @foo()
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ret void
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}
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