derek.holloway
7502bf64a4
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49 lines
1.8 KiB
LLVM
49 lines
1.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
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; RUN: llc -mtriple=amdgcn--amdhsa < %s | FileCheck -check-prefix=GCN %s
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; Effectively, check that the compile finishes; in the case
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; of an infinite loop, llc toggles between merging 2 ST4s
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; ( MergeConsecutiveStores() ) and breaking the resulting ST8
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; apart ( LegalizeStoreOps() ).
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define amdgpu_kernel void @_Z6brokenPd(ptr %arg) {
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; GCN-LABEL: _Z6brokenPd:
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; GCN: ; %bb.0: ; %bb
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; GCN-NEXT: s_mov_b32 flat_scratch_lo, s13
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; GCN-NEXT: s_add_i32 s12, s12, s17
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; GCN-NEXT: s_lshr_b32 flat_scratch_hi, s12, 8
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; GCN-NEXT: s_add_u32 s0, s0, s17
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; GCN-NEXT: s_addc_u32 s1, s1, 0
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; GCN-NEXT: s_load_dwordx2 s[4:5], s[8:9], 0x0
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; GCN-NEXT: v_mov_b32_e32 v2, 0
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; GCN-NEXT: v_mov_b32_e32 v3, 0x7ff80000
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; GCN-NEXT: s_waitcnt lgkmcnt(0)
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; GCN-NEXT: v_mov_b32_e32 v0, s4
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; GCN-NEXT: v_mov_b32_e32 v1, s5
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; GCN-NEXT: s_add_u32 s4, s4, 4
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; GCN-NEXT: s_addc_u32 s5, s5, 0
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; GCN-NEXT: flat_store_dword v[0:1], v2
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; GCN-NEXT: v_mov_b32_e32 v0, s4
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; GCN-NEXT: v_mov_b32_e32 v1, s5
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; GCN-NEXT: flat_store_dword v[0:1], v3
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; GCN-NEXT: s_endpgm
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bb:
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%tmp = alloca double, align 8, addrspace(5)
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%tmp1 = alloca double, align 8, addrspace(5)
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%tmp2 = load double, ptr %arg, align 8
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br i1 1, label %bb6, label %bb4
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bb3: ; No predecessors!
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br label %bb4
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bb4: ; preds = %bb3, %bb
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%tmp5 = phi ptr addrspace(5) [ %tmp1, %bb3 ], [ %tmp, %bb ]
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store double %tmp2, ptr addrspace(5) %tmp5, align 8
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br label %bb6
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bb6: ; preds = %bb4, %bb
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%tmp7 = phi double [ 0x7FF8123000000000, %bb4 ], [ 0x7FF8000000000000, %bb ]
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store double %tmp7, ptr %arg, align 8
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ret void
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}
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