1 ; RUN: opt -basicaa -gvn -instcombine -S < %s | FileCheck %s 2 target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128" 3 4 define i8 @foo(i8* %ptr) { 5 %P = getelementptr i8* %ptr, i32 0 6 %Q = getelementptr i8* %ptr, i32 1 7 ; CHECK: getelementptr 8 %X = load i8* %P 9 %Y = atomicrmw add i8* %Q, i8 1 monotonic 10 %Z = load i8* %P 11 ; CHECK-NOT: = load 12 %A = sub i8 %X, %Z 13 ret i8 %A 14 ; CHECK: ret i8 0 15 } 16
