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			51 lines
		
	
	
		
			921 B
		
	
	
	
		
			LLVM
		
	
	
	
	
	
			
		
		
	
	
			51 lines
		
	
	
		
			921 B
		
	
	
	
		
			LLVM
		
	
	
	
	
	
| ; RUN: llc -march=arm -mcpu=cortex-a8 < %s | FileCheck %s
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| 
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| ; 171 = 0x000000ab
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| define i64 @f1(i64 %a) {
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| ; CHECK: f1
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| ; CHECK: subs r0, r0, #171
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| ; CHECK: sbc r1, r1, #0
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|     %tmp = sub i64 %a, 171
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|     ret i64 %tmp
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| }
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| 
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| ; 66846720 = 0x03fc0000
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| define i64 @f2(i64 %a) {
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| ; CHECK: f2
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| ; CHECK: subs r0, r0, #66846720
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| ; CHECK: sbc r1, r1, #0
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|     %tmp = sub i64 %a, 66846720
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|     ret i64 %tmp
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| }
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| 
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| ; 734439407618 = 0x000000ab00000002
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| define i64 @f3(i64 %a) {
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| ; CHECK: f3
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| ; CHECK: subs r0, r0, #2
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| ; CHECK: sbc r1, r1, #171
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|    %tmp = sub i64 %a, 734439407618
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|    ret i64 %tmp
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| }
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| 
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| define i32 @f4(i32 %x) {
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| entry:
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| ; CHECK: f4
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| ; CHECK: rsbs
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|   %sub = sub i32 1, %x
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|   %cmp = icmp ugt i32 %sub, 0
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|   %sel = select i1 %cmp, i32 1, i32 %sub
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|   ret i32 %sel
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| }
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| 
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| ; rdar://11726136
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| define i32 @f5(i32 %x) {
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| entry:
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| ; CHECK: f5
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| ; CHECK: movw r1, #65535
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| ; CHECK-NOT: movt
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| ; CHECK-NOT: add
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| ; CHECK: sub r0, r0, r1
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|   %sub = add i32 %x, -65535
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|   ret i32 %sub
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| }
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