1; RUN: llc -O2 -march=bpfel -mcpu=v2 -mattr=+alu32 < %s | FileCheck %s 2; 3; For the below test case, both 'ret' and 'b' at 'ret == b' 4; need SLL/SLR. For 'ret', 'ret = a' may receive the value 5; from argument with high 32-bit invalid data. 6; 7; extern int helper(int); 8; int test(int a, int b, int c, int d) { 9; int ret; 10; if (a < b) 11; ret = (c < d) ? a : 0; 12; else 13; ret = (c < a) ? 1 : 2; 14; return helper(ret == b); 15; } 16 17define dso_local i32 @test(i32 %a, i32 %b, i32 %c, i32 %d) local_unnamed_addr { 18entry: 19 %cmp = icmp slt i32 %a, %b 20 %cmp1 = icmp slt i32 %c, %d 21 %cond = select i1 %cmp1, i32 %a, i32 0 22 %cmp2 = icmp slt i32 %c, %a 23 %cond3 = select i1 %cmp2, i32 1, i32 2 24 %ret.0 = select i1 %cmp, i32 %cond, i32 %cond3 25 %cmp4 = icmp eq i32 %ret.0, %b 26 %conv = zext i1 %cmp4 to i32 27 %call = tail call i32 @helper(i32 %conv) 28 ret i32 %call 29} 30; CHECK: r{{[0-9]+}} = w{{[0-9]+}} 31; CHECK: r{{[0-9]+}} = w{{[0-9]+}} 32; CHECK: if r{{[0-9]+}} == r{{[0-9]+}} goto 33 34declare dso_local i32 @helper(i32) local_unnamed_addr 35