derek.holloway
7502bf64a4
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31 lines
1.4 KiB
YAML
31 lines
1.4 KiB
YAML
# RUN: not --crash llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx906 -verify-machineinstrs -run-pass=machine-scheduler -verify-misched -filetype=null %s 2>&1 | FileCheck %s
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# RUN: not --crash llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx906 -passes=machine-scheduler -verify-misched -filetype=null %s 2>&1 | FileCheck %s
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# CHECK: *** Bad machine code: No live subrange at use ***
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# CHECK-NEXT: - function: at_least_one_value_should_be_defined_by_this_mask
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# CHECK-NEXT: - basic block: %bb.0
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# CHECK-NEXT: - instruction: 48B dead undef %2.sub0:vreg_128 = COPY %0.sub0:vreg_128
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# CHECK-NEXT: - operand 1: %0.sub0:vreg_128
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# CHECK-NEXT: - interval: %0 [16r,48r:0) 0@16r L000000000000000C [16r,32r:0) 0@16r weight:0.000000e+00
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# This used to assert with: !SR.empty() && "At least one value should be defined by this mask"
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# This MIR is invalid and should be caught by the verifier. %0.sub0 is
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# used, but not defined. There are also lanes in %0 that are not used
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# or defined anywhere. Previously there was an assertion in the
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# LiveInterval computation, which was more confusing. The invalid
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# LiveRange should be produced and the verifier will catch it.
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---
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name: at_least_one_value_should_be_defined_by_this_mask
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tracksRegLiveness: true
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body: |
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bb.0:
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undef %0.sub1:vreg_128 = V_MOV_B32_e32 0, implicit $exec
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%1:vreg_128 = COPY %0
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undef %2.sub0:vreg_128 = COPY %0.sub0
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...
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