1; RUN: opt < %s -aa-pipeline=basic-aa -passes=gvn -S | FileCheck %s 2 3; The input *.ll is obtained by manually annotating "invariant.load" to the 4; two loads. With "invariant.load" metadata, the second load is redundant. 5; 6; int foo(int *p, char *q) { 7; *q = (char)*p; 8; return *p + 1; 9; } 10 11define i32 @foo(ptr nocapture %p, ptr nocapture %q) { 12entry: 13 %0 = load i32, ptr %p, align 4, !invariant.load !3 14 %conv = trunc i32 %0 to i8 15 store i8 %conv, ptr %q, align 1 16 %1 = load i32, ptr %p, align 4, !invariant.load !3 17 %add = add nsw i32 %1, 1 18 ret i32 %add 19 20; CHECK: foo 21; CHECK: %0 = load i32, ptr %p 22; CHECK: store i8 %conv, ptr %q, 23; CHECK: %add = add nsw i32 %0, 1 24} 25 26!3 = !{} 27