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