24 lines
765 B
Plaintext
24 lines
765 B
Plaintext
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# RUN: llc -mtriple=wasm32-unknown-unknown -run-pass wasm-explicit-locals -wasm-keep-registers %s -o - | FileCheck %s
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# When a drop instruction is inserted to drop a dead register operand, the
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# original operand should be marked not dead anymore because it is now used by
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# the new drop instruction. And the operand to the new drop instruction should
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# be marked killed instead.
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---
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name: drop_test
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liveins:
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- { reg: '$arguments' }
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tracksRegLiveness: true
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body: |
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bb.0:
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successors: %bb.1
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liveins: $arguments
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bb.1:
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; predecessors: %bb.0
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; CHECK-NOT: dead %{{[0-9]+}}
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; CHECK: DROP_I32 killed %{{[0-9]+}}
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dead %0:i32 = CONST_I32 0, implicit-def dead $arguments, implicit $sp32, implicit $sp64
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RETURN implicit-def dead $arguments
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...
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