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1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 42; RUN: llc < %s -mtriple=riscv64 | FileCheck %s --check-prefixes=CHECK-NOZBB3; RUN: llc < %s -mtriple=riscv64 -mattr=+zbb | FileCheck %s --check-prefixes=CHECK-ZBB4 5; This test case miscompiled for ZBB (DAGCombiner turned a SELECT into a more6; poisonous AND operation).7define i1 @pr84653(i32 %x) {8; CHECK-NOZBB-LABEL: pr84653:9; CHECK-NOZBB: # %bb.0:10; CHECK-NOZBB-NEXT: sext.w a1, a011; CHECK-NOZBB-NEXT: lui a2, 52428812; CHECK-NOZBB-NEXT: sgtz a3, a113; CHECK-NOZBB-NEXT: addi a2, a2, -114; CHECK-NOZBB-NEXT: xor a0, a0, a215; CHECK-NOZBB-NEXT: sext.w a0, a016; CHECK-NOZBB-NEXT: slt a0, a0, a117; CHECK-NOZBB-NEXT: and a0, a3, a018; CHECK-NOZBB-NEXT: ret19;20; CHECK-ZBB-LABEL: pr84653:21; CHECK-ZBB: # %bb.0:22; CHECK-ZBB-NEXT: sext.w a1, a023; CHECK-ZBB-NEXT: lui a2, 52428824; CHECK-ZBB-NEXT: xnor a0, a0, a225; CHECK-ZBB-NEXT: sext.w a0, a026; CHECK-ZBB-NEXT: max a0, a0, zero27; CHECK-ZBB-NEXT: slt a0, a0, a128; CHECK-ZBB-NEXT: ret29 %cmp1 = icmp sgt i32 %x, 030 %sub = sub nsw i32 2147483647, %x ; 0x7fffffff31 %cmp2 = icmp sgt i32 %x, %sub32 %r = select i1 %cmp1, i1 %cmp2, i1 false33 ret i1 %r34}35 36; This test case miscompiled for ZBB (DAGCombiner turned a SELECT into a more37; poisonous AND operation).38define i1 @pr85190(i64 %a) {39; CHECK-NOZBB-LABEL: pr85190:40; CHECK-NOZBB: # %bb.0:41; CHECK-NOZBB-NEXT: ori a1, a0, 742; CHECK-NOZBB-NEXT: srli a2, a0, 6343; CHECK-NOZBB-NEXT: li a3, -144; CHECK-NOZBB-NEXT: slli a3, a3, 6345; CHECK-NOZBB-NEXT: sub a3, a3, a146; CHECK-NOZBB-NEXT: slt a0, a0, a347; CHECK-NOZBB-NEXT: and a0, a2, a048; CHECK-NOZBB-NEXT: ret49;50; CHECK-ZBB-LABEL: pr85190:51; CHECK-ZBB: # %bb.0:52; CHECK-ZBB-NEXT: ori a1, a0, 753; CHECK-ZBB-NEXT: li a2, -154; CHECK-ZBB-NEXT: slli a2, a2, 6355; CHECK-ZBB-NEXT: sub a2, a2, a156; CHECK-ZBB-NEXT: min a1, a2, zero57; CHECK-ZBB-NEXT: slt a0, a0, a158; CHECK-ZBB-NEXT: ret59 %or = or i64 %a, 760 %cmp1 = icmp slt i64 %a, 061 %sub = sub nsw i64 -9223372036854775808, %or ; 0x800000000000000062 %cmp2 = icmp sgt i64 %sub, %a63 %res = select i1 %cmp1, i1 %cmp2, i1 false64 ret i1 %res65}66 67define i1 @select_to_or(i32 %x) {68; CHECK-NOZBB-LABEL: select_to_or:69; CHECK-NOZBB: # %bb.0:70; CHECK-NOZBB-NEXT: sext.w a1, a071; CHECK-NOZBB-NEXT: lui a2, 52428872; CHECK-NOZBB-NEXT: sgtz a3, a173; CHECK-NOZBB-NEXT: addi a2, a2, -174; CHECK-NOZBB-NEXT: xor a0, a0, a275; CHECK-NOZBB-NEXT: sext.w a0, a076; CHECK-NOZBB-NEXT: slt a0, a0, a177; CHECK-NOZBB-NEXT: or a0, a3, a078; CHECK-NOZBB-NEXT: ret79;80; CHECK-ZBB-LABEL: select_to_or:81; CHECK-ZBB: # %bb.0:82; CHECK-ZBB-NEXT: sext.w a1, a083; CHECK-ZBB-NEXT: lui a2, 52428884; CHECK-ZBB-NEXT: xnor a0, a0, a285; CHECK-ZBB-NEXT: sext.w a0, a086; CHECK-ZBB-NEXT: min a0, a0, zero87; CHECK-ZBB-NEXT: slt a0, a0, a188; CHECK-ZBB-NEXT: ret89 %cmp1 = icmp sgt i32 %x, 090 %sub = sub nsw i32 2147483647, %x ; 0x7fffffff91 %cmp2 = icmp sgt i32 %x, %sub92 %r = select i1 %cmp1, i1 true, i1 %cmp293 ret i1 %r94}95