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[GlobalOpt] Add more tests with large number of stores to globals.
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Add a few more test cases for D129525.
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@fhahn
fhahn committed Jul 13, 2022
1 parent 9f9464e commit 2d5d6c3
Showing 1 changed file with 115 additions and 21 deletions.
136 changes: 115 additions & 21 deletions llvm/test/Transforms/GlobalOpt/sra-many-stores.ll
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Expand Up @@ -5,32 +5,28 @@

@global = internal global %struct.widget zeroinitializer


;.
; CHECK: @[[GLOBAL:[a-zA-Z0-9_$"\\.-]+]] = internal unnamed_addr global [[STRUCT_WIDGET:%.*]] zeroinitializer
; CHECK: @[[GLOBAL_ARRAY_IN_STRUCT:[a-zA-Z0-9_$"\\.-]+]] = internal unnamed_addr global [[STRUCT_WITH_ARRAY:%.*]] zeroinitializer
; CHECK: @[[GLOBAL_ARRAY:[a-zA-Z0-9_$"\\.-]+]] = internal unnamed_addr global [100 x i64] zeroinitializer
;.
define internal i32 @fn1() {
; CHECK-LABEL: @fn1(
; CHECK-NEXT: ret i32 0
;
ret i32 0
}

define internal void @fn2() {
; CHECK-LABEL: @fn2(
define internal void @read_struct() {
; CHECK-LABEL: @read_struct(
; CHECK-NEXT: [[TMP:%.*]] = load ptr, ptr getelementptr inbounds ([[STRUCT_WIDGET:%.*]], ptr @global, i64 0, i32 16), align 8
; CHECK-NEXT: ret void
;
%tmp = load ptr, ptr getelementptr inbounds (%struct.widget, ptr @global, i64 0, i32 16), align 8
ret void
}

define internal void @write() {
; CHECK-LABEL: @write(
define void @write_struct() {
; CHECK-LABEL: @write_struct(
; CHECK-NEXT: store ptr null, ptr @global, align 8
; CHECK-NEXT: store ptr null, ptr getelementptr inbounds ([[STRUCT_WIDGET:%.*]], ptr @global, i64 0, i32 1), align 8
; CHECK-NEXT: store ptr null, ptr getelementptr inbounds ([[STRUCT_WIDGET]], ptr @global, i64 0, i32 2), align 8
; CHECK-NEXT: store ptr null, ptr getelementptr inbounds ([[STRUCT_WIDGET]], ptr @global, i64 0, i32 3), align 8
; CHECK-NEXT: store ptr @fn1, ptr getelementptr inbounds ([[STRUCT_WIDGET]], ptr @global, i64 0, i32 4), align 8
; CHECK-NEXT: store ptr null, ptr getelementptr inbounds ([[STRUCT_WIDGET]], ptr @global, i64 0, i32 4), align 8
; CHECK-NEXT: store ptr null, ptr getelementptr inbounds ([[STRUCT_WIDGET]], ptr @global, i64 0, i32 5), align 8
; CHECK-NEXT: store ptr null, ptr getelementptr inbounds ([[STRUCT_WIDGET]], ptr @global, i64 0, i32 6), align 8
; CHECK-NEXT: store ptr null, ptr getelementptr inbounds ([[STRUCT_WIDGET]], ptr @global, i64 0, i32 7), align 8
Expand All @@ -42,14 +38,14 @@ define internal void @write() {
; CHECK-NEXT: store ptr null, ptr getelementptr inbounds ([[STRUCT_WIDGET]], ptr @global, i64 0, i32 13), align 8
; CHECK-NEXT: store ptr null, ptr getelementptr inbounds ([[STRUCT_WIDGET]], ptr @global, i64 0, i32 14), align 8
; CHECK-NEXT: store ptr null, ptr getelementptr inbounds ([[STRUCT_WIDGET]], ptr @global, i64 0, i32 15), align 8
; CHECK-NEXT: tail call fastcc void @fn2()
; CHECK-NEXT: tail call fastcc void @read_struct()
; CHECK-NEXT: ret void
;
store ptr null, ptr getelementptr inbounds (%struct.widget, ptr @global, i64 0, i32 0), align 8
store ptr null, ptr getelementptr inbounds (%struct.widget, ptr @global, i64 0, i32 1), align 8
store ptr null, ptr getelementptr inbounds (%struct.widget, ptr @global, i64 0, i32 2), align 8
store ptr null, ptr getelementptr inbounds (%struct.widget, ptr @global, i64 0, i32 3), align 8
store ptr @fn1, ptr getelementptr inbounds (%struct.widget, ptr @global, i64 0, i32 4), align 8
store ptr null, ptr getelementptr inbounds (%struct.widget, ptr @global, i64 0, i32 4), align 8
store ptr null, ptr getelementptr inbounds (%struct.widget, ptr @global, i64 0, i32 5), align 8
store ptr null, ptr getelementptr inbounds (%struct.widget, ptr @global, i64 0, i32 6), align 8
store ptr null, ptr getelementptr inbounds (%struct.widget, ptr @global, i64 0, i32 7), align 8
Expand All @@ -61,15 +57,113 @@ define internal void @write() {
store ptr null, ptr getelementptr inbounds (%struct.widget, ptr @global, i64 0, i32 13), align 8
store ptr null, ptr getelementptr inbounds (%struct.widget, ptr @global, i64 0, i32 14), align 8
store ptr null, ptr getelementptr inbounds (%struct.widget, ptr @global, i64 0, i32 15), align 8
tail call void @fn2()
tail call void @read_struct()
ret void
}

define i32 @main() {
; CHECK-LABEL: @main(
; CHECK-NEXT: [[TMP:%.*]] = tail call i32 @write(ptr null)
; CHECK-NEXT: ret i32 [[TMP]]

%struct.with.array = type { [100 x i64], i64 }

@global.array_in_struct = internal global %struct.with.array zeroinitializer

define internal void @read_non_array_field() {
; CHECK-LABEL: @read_non_array_field(
; CHECK-NEXT: [[TMP:%.*]] = load i64, ptr getelementptr inbounds ([[STRUCT_WITH_ARRAY:%.*]], ptr @global.array_in_struct, i64 0, i32 1), align 8
; CHECK-NEXT: ret void
;
%tmp = load i64, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 1), align 8
ret void
}

define void @store_to_struct_array() {
; CHECK-LABEL: @store_to_struct_array(
; CHECK-NEXT: store i64 0, ptr @global.array_in_struct, align 8
; CHECK-NEXT: store i64 0, ptr getelementptr inbounds ([[STRUCT_WITH_ARRAY:%.*]], ptr @global.array_in_struct, i64 0, i32 0, i32 1), align 8
; CHECK-NEXT: store i64 0, ptr getelementptr inbounds ([[STRUCT_WITH_ARRAY]], ptr @global.array_in_struct, i64 0, i32 0, i32 2), align 8
; CHECK-NEXT: store i64 0, ptr getelementptr inbounds ([[STRUCT_WITH_ARRAY]], ptr @global.array_in_struct, i64 0, i32 0, i32 3), align 8
; CHECK-NEXT: store i64 0, ptr getelementptr inbounds ([[STRUCT_WITH_ARRAY]], ptr @global.array_in_struct, i64 0, i32 0, i32 4), align 8
; CHECK-NEXT: store i64 0, ptr getelementptr inbounds ([[STRUCT_WITH_ARRAY]], ptr @global.array_in_struct, i64 0, i32 0, i32 5), align 8
; CHECK-NEXT: store i64 0, ptr getelementptr inbounds ([[STRUCT_WITH_ARRAY]], ptr @global.array_in_struct, i64 0, i32 0, i32 6), align 8
; CHECK-NEXT: store i64 0, ptr getelementptr inbounds ([[STRUCT_WITH_ARRAY]], ptr @global.array_in_struct, i64 0, i32 0, i32 7), align 8
; CHECK-NEXT: store i64 0, ptr getelementptr inbounds ([[STRUCT_WITH_ARRAY]], ptr @global.array_in_struct, i64 0, i32 0, i32 8), align 8
; CHECK-NEXT: store i64 0, ptr getelementptr inbounds ([[STRUCT_WITH_ARRAY]], ptr @global.array_in_struct, i64 0, i32 0, i32 9), align 8
; CHECK-NEXT: store i64 0, ptr getelementptr inbounds ([[STRUCT_WITH_ARRAY]], ptr @global.array_in_struct, i64 0, i32 0, i32 10), align 8
; CHECK-NEXT: store i64 0, ptr getelementptr inbounds ([[STRUCT_WITH_ARRAY]], ptr @global.array_in_struct, i64 0, i32 0, i32 11), align 8
; CHECK-NEXT: store i64 0, ptr getelementptr inbounds ([[STRUCT_WITH_ARRAY]], ptr @global.array_in_struct, i64 0, i32 0, i32 12), align 8
; CHECK-NEXT: store i64 0, ptr getelementptr inbounds ([[STRUCT_WITH_ARRAY]], ptr @global.array_in_struct, i64 0, i32 0, i32 13), align 8
; CHECK-NEXT: store i64 0, ptr getelementptr inbounds ([[STRUCT_WITH_ARRAY]], ptr @global.array_in_struct, i64 0, i32 0, i32 14), align 8
; CHECK-NEXT: store i64 0, ptr getelementptr inbounds ([[STRUCT_WITH_ARRAY]], ptr @global.array_in_struct, i64 0, i32 0, i32 15), align 8
; CHECK-NEXT: tail call fastcc void @read_non_array_field()
; CHECK-NEXT: ret void
;
%tmp = tail call i32 @write(ptr null)
ret i32 %tmp
store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 0), align 8
store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 1), align 8
store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 2), align 8
store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 3), align 8
store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 4), align 8
store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 5), align 8
store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 6), align 8
store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 7), align 8
store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 8), align 8
store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 9), align 8
store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 10), align 8
store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 11), align 8
store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 12), align 8
store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 13), align 8
store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 14), align 8
store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 15), align 8
tail call void @read_non_array_field()
ret void
}

@global.array = internal global [100 x i64] zeroinitializer

define internal void @read_array() {
; CHECK-LABEL: @read_array(
; CHECK-NEXT: [[TMP:%.*]] = load i64, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 99), align 8
; CHECK-NEXT: ret void
;
%tmp = load i64, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 99), align 8
ret void
}

define void @store_to_array() {
; CHECK-LABEL: @store_to_array(
; CHECK-NEXT: store i64 0, ptr @global.array, align 8
; CHECK-NEXT: store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 1), align 8
; CHECK-NEXT: store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 2), align 8
; CHECK-NEXT: store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 3), align 8
; CHECK-NEXT: store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 4), align 8
; CHECK-NEXT: store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 5), align 8
; CHECK-NEXT: store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 6), align 8
; CHECK-NEXT: store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 7), align 8
; CHECK-NEXT: store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 8), align 8
; CHECK-NEXT: store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 9), align 8
; CHECK-NEXT: store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 10), align 8
; CHECK-NEXT: store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 11), align 8
; CHECK-NEXT: store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 12), align 8
; CHECK-NEXT: store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 13), align 8
; CHECK-NEXT: store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 14), align 8
; CHECK-NEXT: store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 15), align 8
; CHECK-NEXT: tail call fastcc void @read_array()
; CHECK-NEXT: ret void
;
store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 0), align 8
store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 1), align 8
store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 2), align 8
store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 3), align 8
store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 4), align 8
store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 5), align 8
store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 6), align 8
store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 7), align 8
store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 8), align 8
store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 9), align 8
store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 10), align 8
store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 11), align 8
store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 12), align 8
store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 13), align 8
store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 14), align 8
store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 15), align 8
tail call void @read_array()
ret void
}

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