mirror of
				https://github.com/c64scene-ar/llvm-6502.git
				synced 2025-11-04 05:17:07 +00:00 
			
		
		
		
	git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32115 91177308-0d34-0410-b5e6-96231b3b80d8
		
			
				
	
	
		
			22 lines
		
	
	
		
			552 B
		
	
	
	
		
			LLVM
		
	
	
	
	
	
			
		
		
	
	
			22 lines
		
	
	
		
			552 B
		
	
	
	
		
			LLVM
		
	
	
	
	
	
; Don't reduce the byte access to P[i], at least not on targets that 
 | 
						|
; support an efficient 'mem[r1+r2]' addressing mode.
 | 
						|
 | 
						|
; RUN: llvm-upgrade < %s | llvm-as | opt -loop-reduce -disable-output
 | 
						|
 | 
						|
declare bool %pred(int)
 | 
						|
 | 
						|
void %test(sbyte* %PTR) {
 | 
						|
	br label %Loop
 | 
						|
Loop:
 | 
						|
	%INDVAR = phi int [0, %0], [%INDVAR2, %Loop]
 | 
						|
 | 
						|
	%STRRED = getelementptr sbyte* %PTR, int %INDVAR
 | 
						|
	store sbyte 0, sbyte* %STRRED
 | 
						|
 | 
						|
	%INDVAR2 = add int %INDVAR, 1
 | 
						|
	%cond = call bool %pred(int %INDVAR2)  ;; cannot eliminate indvar
 | 
						|
	br bool %cond, label %Loop, label %Out
 | 
						|
Out:
 | 
						|
	ret void
 | 
						|
}
 |