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; RUN: llvm-as < %s -bitcode-mdindex-threshold=0 | llvm-bcanalyzer -dump | FileCheck %s
; Test that metadata only used by a single function is serialized in that
; function instead of in the global pool.
;
; In order to make the bitcode records easy to follow, nodes in this testcase
; are named after the ids they are given in the bitcode. Nodes local to a
; function have offsets of 100 or 200 (depending on the function) so that they
; remain unique within this textual IR.
; Check for strings in the global pool.
; CHECK: <METADATA_BLOCK
; CHECK-NEXT: <STRINGS
; CHECK-SAME: /> num-strings = 3 {
; CHECK-NEXT: 'named'
; CHECK-NEXT: 'named and foo'
; CHECK-NEXT: 'foo and bar'
; CHECK-NEXT: }
; Each node gets a new number. Bottom-up traversal of nodes.
!named = !{!6}
; Before the records we emit an offset to the index for the block
; CHECK-NEXT: <INDEX_OFFSET
; CHECK-NEXT: <NODE op0=1/>
!4 = !{!"named"}
; CHECK-NEXT: <NODE op0=2/>
!5 = !{!"named and foo"}
; CHECK-NEXT: <NODE op0=1 op1=4 op2=5/>
!6 = !{!"named", !4, !5}
; CHECK-NEXT: <NODE op0=3/>
!7 = !{!"foo and bar"}
; CHECK-NOT: <NODE
; CHECK: </METADATA_BLOCK
; Look at metadata local to @foo, starting with strings.
; CHECK: <FUNCTION_BLOCK
; CHECK: <METADATA_BLOCK
; CHECK-NEXT: <STRINGS
; CHECK-SAME: /> num-strings = 1 {
; CHECK-NEXT: 'foo'
; CHECK-NEXT: }
; Function-local nodes start at 9 (strings at 8).
; CHECK-NEXT: <NODE op0=8/>
!109 = !{!"foo"}
; CHECK-NEXT: <NODE op0=8 op1=3 op2=9 op3=7 op4=5/>
!110 = !{!"foo", !"foo and bar", !109, !7, !5}
; CHECK-NEXT: </METADATA_BLOCK
define void @foo() !foo !110 {
unreachable
}
; Look at metadata local to @bar, starting with strings.
; CHECK: <FUNCTION_BLOCK
; CHECK: <METADATA_BLOCK
; CHECK-NEXT: <STRINGS
; CHECK-SAME: /> num-strings = 1 {
; CHECK-NEXT: 'bar'
; CHECK-NEXT: }
; Function-local nodes start at 9 (strings at 8).
; CHECK-NEXT: <NODE op0=8/>
!209 = !{!"bar"}
; CHECK-NEXT: <NODE op0=8 op1=3 op2=9 op3=7/>
!210 = !{!"bar", !"foo and bar", !209, !7}
; CHECK-NEXT: </METADATA_BLOCK
define void @bar() {
unreachable, !bar !210
}
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