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			2.1 KiB
		
	
	
	
		
			LLVM
		
	
	
	
	
	
		
		
			
		
	
	
			74 lines
		
	
	
		
			2.1 KiB
		
	
	
	
		
			LLVM
		
	
	
	
	
	
|   | ; RUN: llc -march=hexagon -enable-save-restore-long < %s | FileCheck %s
 | ||
|  | 
 | ||
|  | ; Check that the -long-calls feature is supported by the backend.
 | ||
|  | 
 | ||
|  | ; CHECK: call ##foo
 | ||
|  | ; CHECK: jump ##__restore
 | ||
|  | define i64 @test_longcall(i32 %x, i32 %y) #0 { | ||
|  | entry: | ||
|  |   %add = add nsw i32 %x, 5 | ||
|  |   %call = tail call i64 @foo(i32 %add) #6 | ||
|  |   %conv = sext i32 %y to i64 | ||
|  |   %add1 = add nsw i64 %call, %conv | ||
|  |   ret i64 %add1 | ||
|  | } | ||
|  | 
 | ||
|  | ; CHECK: jump ##foo
 | ||
|  | define i64 @test_longtailcall(i32 %x, i32 %y) #1 { | ||
|  | entry: | ||
|  |   %add = add nsw i32 %x, 5 | ||
|  |   %call = tail call i64 @foo(i32 %add) #6 | ||
|  |   ret i64 %call | ||
|  | } | ||
|  | 
 | ||
|  | ; CHECK: call ##bar
 | ||
|  | define i64 @test_longnoret(i32 %x, i32 %y) #2 { | ||
|  | entry: | ||
|  |   %add = add nsw i32 %x, 5 | ||
|  |   %0 = tail call i64 @bar(i32 %add) #7 | ||
|  |   unreachable | ||
|  | } | ||
|  | 
 | ||
|  | ; CHECK: call foo
 | ||
|  | ; CHECK: jump ##__restore
 | ||
|  | ; The restore call will still be long because of the enable-save-restore-long
 | ||
|  | ; option being used.
 | ||
|  | define i64 @test_shortcall(i32 %x, i32 %y) #3 { | ||
|  | entry: | ||
|  |   %add = add nsw i32 %x, 5 | ||
|  |   %call = tail call i64 @foo(i32 %add) #6 | ||
|  |   %conv = sext i32 %y to i64 | ||
|  |   %add1 = add nsw i64 %call, %conv | ||
|  |   ret i64 %add1 | ||
|  | } | ||
|  | 
 | ||
|  | ; CHECK: jump foo
 | ||
|  | define i64 @test_shorttailcall(i32 %x, i32 %y) #4 { | ||
|  | entry: | ||
|  |   %add = add nsw i32 %x, 5 | ||
|  |   %call = tail call i64 @foo(i32 %add) #6 | ||
|  |   ret i64 %call | ||
|  | } | ||
|  | 
 | ||
|  | ; CHECK: call bar
 | ||
|  | define i64 @test_shortnoret(i32 %x, i32 %y) #5 { | ||
|  | entry: | ||
|  |   %add = add nsw i32 %x, 5 | ||
|  |   %0 = tail call i64 @bar(i32 %add) #7 | ||
|  |   unreachable | ||
|  | } | ||
|  | 
 | ||
|  | declare i64 @foo(i32) #6 | ||
|  | declare i64 @bar(i32) #7 | ||
|  | 
 | ||
|  | attributes #0 = { minsize nounwind "target-cpu"="hexagonv60" "target-features"="+long-calls" } | ||
|  | attributes #1 = { nounwind "target-cpu"="hexagonv60" "target-features"="+long-calls" } | ||
|  | attributes #2 = { noreturn nounwind "target-cpu"="hexagonv60" "target-features"="+long-calls" } | ||
|  | 
 | ||
|  | attributes #3 = { minsize nounwind "target-cpu"="hexagonv60" "target-features"="-long-calls" } | ||
|  | attributes #4 = { nounwind "target-cpu"="hexagonv60" "target-features"="-long-calls" } | ||
|  | attributes #5 = { noreturn nounwind "target-cpu"="hexagonv60" "target-features"="-long-calls" } | ||
|  | 
 | ||
|  | attributes #6 = { noreturn "target-cpu"="hexagonv60" } | ||
|  | attributes #7 = { noreturn nounwind "target-cpu"="hexagonv60" } |