1 ; RUN: opt < %s -separate-const-offset-from-gep -value-tracking-dom-conditions -reassociate-geps-verify-no-dead-code -S | FileCheck %s 2 3 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 4 target triple = "nvptx64-unknown-unknown" 5 6 ; if (i == 4) 7 ; p = &input[i | 3]; 8 ; 9 ; => 10 ; 11 ; if (i == 4) { 12 ; base = &input[i]; 13 ; p = &base[3]; 14 ; } 15 ; 16 ; We should treat (i | 3) as (i + 3) because i is guaranteed to be 4, which 17 ; does not share any set bits with 3. 18 define float* @guarded_or(float* %input, i64 %i) { 19 ; CHECK-LABEL: @guarded_or( 20 entry: 21 %is4 = icmp eq i64 %i, 4 22 br i1 %is4, label %then, label %exit 23 24 then: 25 %or = or i64 %i, 3 26 %p = getelementptr inbounds float, float* %input, i64 %or 27 ; CHECK: [[base:[^ ]+]] = getelementptr float, float* %input, i64 %i 28 ; CHECK: getelementptr inbounds float, float* [[base]], i64 3 29 ret float* %p 30 31 exit: 32 ret float* null 33 } 34
