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multiblock-memoryphis.ll
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multiblock-memoryphis.ll
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -basic-aa -dse -S | FileCheck %s
target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
define void @test4(i32* noalias %P) {
; CHECK-LABEL: @test4(
; CHECK-NEXT: store i32 0, i32* [[P:%.*]], align 4
; CHECK-NEXT: br i1 true, label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK: bb1:
; CHECK-NEXT: br label [[BB3:%.*]]
; CHECK: bb2:
; CHECK-NEXT: [[X:%.*]] = load i32, i32* [[P]], align 4
; CHECK-NEXT: br label [[BB3]]
; CHECK: bb3:
; CHECK-NEXT: store i32 0, i32* [[P]], align 4
; CHECK-NEXT: ret void
;
store i32 0, i32* %P
br i1 true, label %bb1, label %bb2
bb1:
br label %bb3
bb2:
%x = load i32, i32* %P
br label %bb3
bb3:
store i32 0, i32* %P
ret void
}
define void @test5(i32* noalias %P) {
; CHECK-LABEL: @test5(
; CHECK-NEXT: br i1 true, label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK: bb1:
; CHECK-NEXT: br label [[BB3:%.*]]
; CHECK: bb2:
; CHECK-NEXT: br label [[BB3]]
; CHECK: bb3:
; CHECK-NEXT: store i32 0, i32* [[P:%.*]], align 4
; CHECK-NEXT: ret void
;
br i1 true, label %bb1, label %bb2
bb1:
store i32 1, i32* %P
br label %bb3
bb2:
store i32 1, i32* %P
br label %bb3
bb3:
store i32 0, i32* %P
ret void
}
define void @test8(i32* %P, i32* %Q) {
; CHECK-LABEL: @test8(
; CHECK-NEXT: br i1 true, label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK: bb1:
; CHECK-NEXT: br label [[BB3:%.*]]
; CHECK: bb2:
; CHECK-NEXT: store i32 1, i32* [[Q:%.*]], align 4
; CHECK-NEXT: br label [[BB3]]
; CHECK: bb3:
; CHECK-NEXT: store i32 0, i32* [[P:%.*]], align 4
; CHECK-NEXT: ret void
;
br i1 true, label %bb1, label %bb2
bb1:
store i32 1, i32* %P
br label %bb3
bb2:
store i32 1, i32* %Q
br label %bb3
bb3:
store i32 0, i32* %P
ret void
}
define void @test10(i32* noalias %P) {
; CHECK-LABEL: @test10(
; CHECK-NEXT: store i32 1, i32* [[P:%.*]], align 4
; CHECK-NEXT: br i1 true, label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK: bb1:
; CHECK-NEXT: br label [[BB3:%.*]]
; CHECK: bb2:
; CHECK-NEXT: br label [[BB3]]
; CHECK: bb3:
; CHECK-NEXT: ret void
;
%P2 = bitcast i32* %P to i8*
store i32 0, i32* %P
br i1 true, label %bb1, label %bb2
bb1:
br label %bb3
bb2:
br label %bb3
bb3:
store i8 1, i8* %P2
ret void
}
declare void @hoge()
; Check a function with a MemoryPhi with 3 incoming values.
define void @widget(i32* %Ptr, i1 %c1, i1 %c2, i32 %v1, i32 %v2, i32 %v3) {
; CHECK-LABEL: @widget(
; CHECK-NEXT: bb:
; CHECK-NEXT: tail call void @hoge()
; CHECK-NEXT: br i1 [[C1:%.*]], label [[BB3:%.*]], label [[BB1:%.*]]
; CHECK: bb1:
; CHECK-NEXT: br i1 [[C2:%.*]], label [[BB2:%.*]], label [[BB3]]
; CHECK: bb2:
; CHECK-NEXT: br label [[BB3]]
; CHECK: bb3:
; CHECK-NEXT: br label [[BB4:%.*]]
; CHECK: bb4:
; CHECK-NEXT: switch i32 [[V1:%.*]], label [[BB8:%.*]] [
; CHECK-NEXT: i32 0, label [[BB5:%.*]]
; CHECK-NEXT: i32 1, label [[BB6:%.*]]
; CHECK-NEXT: i32 2, label [[BB7:%.*]]
; CHECK-NEXT: ]
; CHECK: bb5:
; CHECK-NEXT: store i32 0, i32* [[PTR:%.*]], align 4
; CHECK-NEXT: br label [[BB8]]
; CHECK: bb6:
; CHECK-NEXT: store i32 1, i32* [[PTR]], align 4
; CHECK-NEXT: br label [[BB8]]
; CHECK: bb7:
; CHECK-NEXT: store i32 2, i32* [[PTR]], align 4
; CHECK-NEXT: br label [[BB8]]
; CHECK: bb8:
; CHECK-NEXT: br label [[BB4]]
;
bb:
tail call void @hoge()
br i1 %c1, label %bb3, label %bb1
bb1: ; preds = %bb
br i1 %c2, label %bb2, label %bb3
bb2: ; preds = %bb1
store i32 -1, i32* %Ptr, align 4
br label %bb3
bb3: ; preds = %bb2, %bb1, %bb
br label %bb4
bb4: ; preds = %bb8, %bb3
switch i32 %v1, label %bb8 [
i32 0, label %bb5
i32 1, label %bb6
i32 2, label %bb7
]
bb5: ; preds = %bb4
store i32 0, i32* %Ptr, align 4
br label %bb8
bb6: ; preds = %bb4
store i32 1, i32* %Ptr, align 4
br label %bb8
bb7: ; preds = %bb4
store i32 2, i32* %Ptr, align 4
br label %bb8
bb8: ; preds = %bb7, %bb6, %bb5, %bb4
br label %bb4
}
declare void @fn1_test11()
declare void @fn2_test11()
define void @test11(i1 %c, i8** %ptr.1) {
; CHECK-LABEL: @test11(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[C:%.*]], label [[IF_THEN:%.*]], label [[EXIT:%.*]]
; CHECK: if.then:
; CHECK-NEXT: tail call void @fn2_test11() #0
; CHECK-NEXT: br label [[EXIT]]
; CHECK: exit:
; CHECK-NEXT: store i8* null, i8** [[PTR_1:%.*]], align 8
; CHECK-NEXT: tail call void @fn2_test11() #0
; CHECK-NEXT: ret void
;
entry:
br i1 %c, label %if.then, label %exit
if.then: ; preds = %entry
tail call void @fn2_test11() #1
br label %exit
exit:
store i8* null, i8** %ptr.1, align 8
tail call void @fn2_test11() #1
ret void
}
attributes #1 = { nounwind }