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Summary: This was broken in r260694 which swapped the address and data operands for flat store instructions. The code in SIInsertWaits assumes that the data operand always comes before the address operand, so we need to add a special case for flat. Reviewers: arsenm Subscribers: arsenm, llvm-commits Differential Revision: http://reviews.llvm.org/D17366 llvm-svn: 261330
17 lines
688 B
LLVM
17 lines
688 B
LLVM
; RUN: llc < %s -mtriple=amdgcn--amdhsa -mcpu=kaveri | FileCheck --check-prefix=GCN %s
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; RUN: llc < %s -mtriple=amdgcn--amdhsa -mcpu=fiji | FileCheck --check-prefix=GCN %s
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; If flat_store_dword and flat_load_dword use different registers for the data
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; operand, this test is not broken. It just means it is no longer testing
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; for the original bug.
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; GCN: {{^}}test:
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; GCN: flat_store_dword v[{{[0-9]+:[0-9]+}}], [[DATA:v[0-9]+]]
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; GCN: s_waitcnt vmcnt(0) lgkmcnt(0)
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; GCN: flat_load_dword [[DATA]], v[{{[0-9]+:[0-9]+}}]
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define void @test(i32 addrspace(1)* %out, i32 %in) {
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store volatile i32 0, i32 addrspace(1)* %out
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%val = load volatile i32, i32 addrspace(1)* %out
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ret void
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}
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