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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -basic-aa -dse -enable-dse-memoryssa -S | FileCheck %s
; RUN: opt < %s -aa-pipeline=basic-aa -passes=dse -enable-dse-memoryssa -S | FileCheck %s
declare void @use(i64*)
define void @test1() {
; CHECK-LABEL: @test1(
; CHECK-NEXT: [[A:%.*]] = alloca i64
; CHECK-NEXT: call void @use(i64* [[A]])
; CHECK-NEXT: [[PTR1:%.*]] = bitcast i64* [[A]] to i8*
; CHECK-NEXT: [[PTR2:%.*]] = getelementptr i8, i8* [[PTR1]], i32 1
; CHECK-NEXT: store i8 10, i8* [[PTR1]]
; CHECK-NEXT: store i8 20, i8* [[PTR2]]
; CHECK-NEXT: [[LV:%.*]] = load i64, i64* [[A]]
; CHECK-NEXT: store i8 0, i8* [[PTR1]]
; CHECK-NEXT: call void @use(i64* [[A]])
; CHECK-NEXT: ret void
;
%a = alloca i64
call void @use(i64* %a)
%ptr1 = bitcast i64* %a to i8*
%ptr2 = getelementptr i8, i8* %ptr1, i32 1
store i8 10, i8* %ptr1
store i8 20, i8* %ptr2
%lv = load i64, i64* %a
store i8 0, i8* %ptr1
call void @use(i64* %a)
ret void
}
define void @test2() {
; CHECK-LABEL: @test2(
; CHECK-NEXT: [[A:%.*]] = alloca i64
; CHECK-NEXT: call void @use(i64* [[A]])
; CHECK-NEXT: [[PTR1:%.*]] = bitcast i64* [[A]] to i8*
; CHECK-NEXT: [[PTR2:%.*]] = getelementptr i8, i8* [[PTR1]], i32 1
; CHECK-NEXT: store i8 10, i8* [[PTR1]]
; CHECK-NEXT: store i8 20, i8* [[PTR2]]
; CHECK-NEXT: br i1 undef, label [[BB1:%.*]], label [[END:%.*]]
; CHECK: bb1:
; CHECK-NEXT: [[LV:%.*]] = load i64, i64* [[A]]
; CHECK-NEXT: br label [[END]]
; CHECK: end:
; CHECK-NEXT: store i8 0, i8* [[PTR1]]
; CHECK-NEXT: call void @use(i64* [[A]])
; CHECK-NEXT: ret void
;
%a = alloca i64
call void @use(i64* %a)
%ptr1 = bitcast i64* %a to i8*
%ptr2 = getelementptr i8, i8* %ptr1, i32 1
store i8 10, i8* %ptr1
store i8 20, i8* %ptr2
br i1 undef, label %bb1, label %end
bb1:
%lv = load i64, i64* %a
br label %end
end:
store i8 0, i8* %ptr1
call void @use(i64* %a)
ret void
}
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