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			49 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			LLVM
		
	
	
	
	
	
		
		
			
		
	
	
			49 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			LLVM
		
	
	
	
	
	
|   | ; RUN: llc -verify-machineinstrs -mcpu=pwr7 < %s | FileCheck %s
 | ||
|  | target datalayout = "E-m:e-i64:64-n32:64" | ||
|  | target triple = "powerpc64-unknown-linux-gnu" | ||
|  | 
 | ||
|  | define i32 @test1() #0 { | ||
|  | entry: | ||
|  |   %conv67.reload = load i32, i32* undef | ||
|  |   %const = bitcast i32 65535 to i32 | ||
|  |   br label %next | ||
|  | 
 | ||
|  | next: | ||
|  |   %shl161 = shl nuw nsw i32 %conv67.reload, 15 | ||
|  |   %0 = load i8, i8* undef, align 1 | ||
|  |   %conv169 = zext i8 %0 to i32 | ||
|  |   %shl170 = shl nuw nsw i32 %conv169, 7 | ||
|  |   %const_mat = add i32 %const, -32767 | ||
|  |   %shl161.masked = and i32 %shl161, %const_mat | ||
|  |   %conv174 = or i32 %shl170, %shl161.masked | ||
|  |   ret i32 %conv174 | ||
|  | 
 | ||
|  | ; CHECK-LABEL: @test1
 | ||
|  | ; CHECK-NOT: rlwimi 3, {{[0-9]+}}, 15, 0, 16
 | ||
|  | ; CHECK: blr
 | ||
|  | } | ||
|  | 
 | ||
|  | define i32 @test2() #0 { | ||
|  | entry: | ||
|  |   %conv67.reload = load i32, i32* undef | ||
|  |   %const = bitcast i32 65535 to i32 | ||
|  |   br label %next | ||
|  | 
 | ||
|  | next: | ||
|  |   %shl161 = shl nuw nsw i32 %conv67.reload, 15 | ||
|  |   %0 = load i8, i8* undef, align 1 | ||
|  |   %conv169 = zext i8 %0 to i32 | ||
|  |   %shl170 = shl nuw nsw i32 %conv169, 7 | ||
|  |   %shl161.masked = and i32 %shl161, 32768 | ||
|  |   %conv174 = or i32 %shl170, %shl161.masked | ||
|  |   ret i32 %conv174 | ||
|  | 
 | ||
|  | ; CHECK-LABEL: @test2
 | ||
|  | ; CHECK: slwi 3, {{[0-9]+}}, 7
 | ||
|  | ; CHECK: rlwimi 3, {{[0-9]+}}, 15, 16, 16
 | ||
|  | ; CHECK: blr
 | ||
|  | } | ||
|  | 
 | ||
|  | attributes #0 = { nounwind } | ||
|  | 
 |