1; RUN: opt < %s -instcombine -S | FileCheck %s 2 3; Instcombine normally would fold the sdiv into the comparison, 4; making "icmp slt i32 %h, 2", but in this case the sdiv has 5; another use, so it wouldn't a big win, and it would also 6; obfuscate an otherise obvious smax pattern to the point where 7; other analyses wouldn't recognize it. 8 9define i32 @foo(i32 %h) { 10 %sd = sdiv i32 %h, 2 11 %t = icmp slt i32 %sd, 1 12 %r = select i1 %t, i32 %sd, i32 1 13 ret i32 %r 14} 15 16; CHECK: %sd = sdiv i32 %h, 2 17; CHECK: %t = icmp slt i32 %sd, 1 18; CHECK: %r = select i1 %t, i32 %sd, i32 1 19; CHECK: ret i32 %r 20 21define i32 @bar(i32 %h) { 22 %sd = sdiv i32 %h, 2 23 %t = icmp sgt i32 %sd, 1 24 %r = select i1 %t, i32 %sd, i32 1 25 ret i32 %r 26} 27 28; CHECK: %sd = sdiv i32 %h, 2 29; CHECK: %t = icmp sgt i32 %sd, 1 30; CHECK: %r = select i1 %t, i32 %sd, i32 1 31; CHECK: ret i32 %r 32 33