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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

38 lines
949 B
LLVM

; RUN: opt < %s -aa-pipeline=basic-aa -passes=aa-eval -print-all-alias-modref-info 2>&1 | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
; BasicAA's guard against use-def cycles shouldn't prevent it from
; analyzing use-def dags.
; CHECK: MustAlias: i8* %base, i8* %phi
; CHECK: MustAlias: i16* %base, i8* %base
; CHECK: MustAlias: i16* %base, i8* %phi
define i8 @foo(ptr %base, i1 %x, i1 %w) {
entry:
load i8, ptr %base
br i1 %w, label %wa, label %wb
wa:
load i8, ptr %base
br label %wc
wb:
load i8, ptr %base
br label %wc
wc:
%first = phi ptr [ %base, %wa ], [ %base, %wb ]
br i1 %x, label %xa, label %xb
xa:
br label %xc
xb:
br label %xc
xc:
%phi = phi ptr [ %first, %xa ], [ %first, %xb ]
store i8 0, ptr %phi
store i16 -1, ptr %base
%loaded = load i8, ptr %phi
ret i8 %loaded
}