File: misched-aa-mmos.ll

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llvm-toolchain-17 1%3A17.0.6-22
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; RUN: llc -enable-misched -enable-aa-sched-mi < %s

; This generates a decw instruction, which has two MMOs, and an alias SU edge
; query involving that instruction. Make sure this does not crash.

target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%s1 = type { i16, i16, i32 }
%c1 = type { ptr, %u1, i16, i8 }
%u1 = type { i64 }

declare zeroext i1 @bar(ptr, i32) #5

define i32 @foo() #0 align 2 {
entry:
  %temp_rhs = alloca %c1, align 8
  br i1 undef, label %if.else56, label %cond.end.i

cond.end.i:
  %significand.i18.i = getelementptr inbounds %c1, ptr %temp_rhs, i64 0, i32 1
  %exponent.i = getelementptr inbounds %c1, ptr %temp_rhs, i64 0, i32 2
  %0 = load i16, ptr %exponent.i, align 8
  %sub.i = add i16 %0, -1
  store i16 %sub.i, ptr %exponent.i, align 8
  %1 = load ptr, ptr %significand.i18.i, align 8
  %call5.i = call zeroext i1 @bar(ptr %1, i32 undef) #1
  unreachable

if.else56:
  unreachable
}

attributes #0 = { nounwind uwtable }
attributes #1 = { nounwind }