break;
case ISD::FREEZE:
assert(VT == Operand.getValueType() && "Unexpected VT!");
- if (isGuaranteedNotToBeUndefOrPoison(Operand))
+ if (isGuaranteedNotToBeUndefOrPoison(Operand, /*PoisonOnly*/ false,
+ /*Depth*/ 1))
return Operand;
break;
case ISD::TokenFactor:
--- /dev/null
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=x86_64-- | FileCheck %s
+
+@a = external dso_local local_unnamed_addr global i8, align 1
+
+define void @PR57554() {
+; CHECK-LABEL: PR57554:
+; CHECK: # %bb.0:
+; CHECK-NEXT: movb %al, a(%rip)
+; CHECK-NEXT: retq
+ %.fr13 = freeze i8 undef
+ %i = xor i8 %.fr13, -1
+ %not = sext i8 %i to i32
+ %add = add i32 %not, 2147483647
+ %or = or i32 %add, -1794967296
+ %or4 = or i32 %or, 0
+ %not5 = xor i32 %or4, -1
+ %sub = add nsw i32 0, -1
+ %add7 = add nsw i32 %sub, %not5
+ %add7.fr = freeze i32 %add7
+ %i1 = trunc i32 %add7.fr to i8
+ %conv10 = select i1 false, i8 0, i8 %i1
+ store i8 %conv10, ptr @a, align 1
+ ret void
+}