derek.holloway
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53 lines
1.3 KiB
YAML
53 lines
1.3 KiB
YAML
# RUN: llc -mtriple=hexagon -run-pass tfr-cleanup -o - %s | FileCheck %s
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# Test coverage for HexagonTfrCleanup: exercise the 64-bit register
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# immediate rewrite paths including the A2_combineii case and the
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# A2_tfrpi case.
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--- |
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define void @test_double_imm() { ret void }
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define void @test_combine_imm() { ret void }
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define void @test_self_copy() { ret void }
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...
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---
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# Test: 64-bit register copy rewritten to A2_tfrpi when source holds
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# a small immediate (fits in int8).
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# CHECK-LABEL: name: test_double_imm
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# CHECK: A2_tfrpi
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name: test_double_imm
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tracksRegLiveness: true
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body: |
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bb.0:
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$r0 = A2_tfrsi 3
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$r1 = A2_tfrsi 0
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$d1 = A2_tfrp $d0
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...
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---
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# Test: 64-bit register copy rewritten to A2_combineii when the source
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# value has both halves fitting in int8 but the full value does not.
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# CHECK-LABEL: name: test_combine_imm
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# CHECK: A2_combineii
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name: test_combine_imm
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tracksRegLiveness: true
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body: |
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bb.0:
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$r0 = A2_tfrsi 5
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$r1 = A2_tfrsi 7
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$d1 = A2_tfrp $d0
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...
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---
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# Test: eraseIfRedundant - self-assignment A2_tfr should be removed.
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# CHECK-LABEL: name: test_self_copy
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# CHECK-NOT: A2_tfr $r0, $r0
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name: test_self_copy
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $r0
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$r0 = A2_tfr $r0
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J2_jumpr $r31, implicit-def dead $pc
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...
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