|  | ; RUN: llc -mcpu=pwr7 -O0 -code-model=medium <%s | FileCheck %s | 
|  | ; RUN: llc -mcpu=pwr7 -O0 -code-model=large <%s | FileCheck %s | 
|  |  | 
|  | ; Test correct code generation for medium and large code model | 
|  | ; for loading and storing an external variable. | 
|  |  | 
|  | target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f128:128:128-v128:128:128-n32:64" | 
|  | target triple = "powerpc64-unknown-linux-gnu" | 
|  |  | 
|  | @ei = external global i32 | 
|  |  | 
|  | define signext i32 @test_external() nounwind { | 
|  | entry: | 
|  | %0 = load i32, i32* @ei, align 4 | 
|  | %inc = add nsw i32 %0, 1 | 
|  | store i32 %inc, i32* @ei, align 4 | 
|  | ret i32 %0 | 
|  | } | 
|  |  | 
|  | ; CHECK-LABEL: test_external: | 
|  | ; CHECK: addis [[REG1:[0-9]+]], 2, .LC[[TOCNUM:[0-9]+]]@toc@ha | 
|  | ; CHECK: ld [[REG2:[0-9]+]], .LC[[TOCNUM]]@toc@l([[REG1]]) | 
|  | ; CHECK: lwz {{[0-9]+}}, 0([[REG2]]) | 
|  | ; CHECK: stw {{[0-9]+}}, 0([[REG2]]) | 
|  | ; CHECK: .section .toc | 
|  | ; CHECK: .LC[[TOCNUM]]: | 
|  | ; CHECK: .tc {{[a-z0-9A-Z_.]+}}[TC],{{[a-z0-9A-Z_.]+}} |