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[DAG] getFreeze()/getNode() - account for operand depth when calling …
…isGuaranteedNotToBeUndefOrPoison (PR57554) Similar to #57402 - we were calling isGuaranteedNotToBeUndefOrPoison on the freeze operand (with Depth = 0), but wasn't accounting for the fact that a later isGuaranteedNotToBeUndefOrPoison assertion will call from the new node (with Depth = 0 as well) - which will then recursively call isGuaranteedNotToBeUndefOrPoison for its operands with Depth = 1 Fixes #57554
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py | ||
; RUN: llc < %s -mtriple=x86_64-- | FileCheck %s | ||
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@a = external dso_local local_unnamed_addr global i8, align 1 | ||
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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 | ||
} |