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1# RUN: llc -run-pass=xray-instrumentation -mtriple=x86_64-unknown-linux-gnu -o - %s | FileCheck %s2# RUN: llc -passes=xray-instrumentation -mtriple=x86_64-unknown-linux-gnu -o - %s | FileCheck %s3#4# Make sure we can handle empty first basic blocks.5 6--- |7 8 define i32 @foo() noinline uwtable "xray-instruction-threshold"="0" {9 entry:10 unreachable11 }12 13...14 15---16name: foo17tracksRegLiveness: true18liveins:19 - { reg: '$edi'}20body: |21 bb.0.entry:22 liveins: $edi23 ; CHECK-NOT: PATCHABLE_FUNCTION_ENTER24...25