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