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[GlobalOpt] adjust test to show load problems; NFC 

Goes with D102552
This commit is contained in:
Sanjay Patel 2021-05-20 11:15:53 -04:00
parent 8ebaa19501
commit ee4055cf23
1 changed files with 22 additions and 14 deletions
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36
llvm/test/Transforms/GlobalOpt/globalsra-align.ll
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@ -3,7 +3,7 @@
target datalayout = "p:16:32:64" ; 16-bit pointers with 32-bit ABI alignment and 64-bit preferred alignmentt
@a = internal global [2 x [7 x i32*]] zeroinitializer, align 16
@a = internal externally_initialized global [3 x [7 x i32*]] zeroinitializer, align 16
; FIXME:
; PR50253
@ -13,44 +13,52 @@ target datalayout = "p:16:32:64" ; 16-bit pointers with 32-bit ABI alignment and
; by the ABI alignment of N pointers.
;.
; CHECK: @[[A_1:[a-zA-Z0-9_$"\\.-]+]] = internal unnamed_addr global [7 x i32*] zeroinitializer, align 16
; CHECK: @[[A_1:[a-zA-Z0-9_$"\\.-]+]] = internal unnamed_addr externally_initialized global [7 x i32*] zeroinitializer, align 16
; CHECK: @[[A_2_0:[a-zA-Z0-9_$"\\.-]+]] = internal unnamed_addr externally_initialized global i32* null, align 8
; CHECK: @[[A_2_1:[a-zA-Z0-9_$"\\.-]+]] = internal unnamed_addr externally_initialized global i32* null, align 8
; CHECK: @[[A_2_2:[a-zA-Z0-9_$"\\.-]+]] = internal unnamed_addr externally_initialized global i32* null, align 8
; CHECK: @[[A_2_3:[a-zA-Z0-9_$"\\.-]+]] = internal unnamed_addr externally_initialized global i32* null, align 8
;.
define i32* @reduce_align_0() {
; CHECK-LABEL: @reduce_align_0(
; CHECK-NEXT: [[X:%.*]] = load i32*, i32** @a.2.0, align 8
; CHECK-NEXT: store i32* null, i32** getelementptr inbounds ([7 x i32*], [7 x i32*]* @a.1, i32 0, i64 0), align 4
; CHECK-NEXT: ret i32* null
; CHECK-NEXT: ret i32* [[X]]
;
%x = load i32*, i32** getelementptr inbounds ([2 x [7 x i32*]], [2 x [7 x i32*]]* @a, i64 0, i64 0, i64 0), align 1
store i32* null, i32** getelementptr inbounds ([2 x [7 x i32*]], [2 x [7 x i32*]]* @a, i64 0, i64 1, i64 0), align 4
%x = load i32*, i32** getelementptr inbounds ([3 x [7 x i32*]], [3 x [7 x i32*]]* @a, i64 0, i64 2, i64 0), align 8
store i32* null, i32** getelementptr inbounds ([3 x [7 x i32*]], [3 x [7 x i32*]]* @a, i64 0, i64 1, i64 0), align 4
ret i32* %x
}
define i32* @reduce_align_1() {
; CHECK-LABEL: @reduce_align_1(
; CHECK-NEXT: [[X:%.*]] = load i32*, i32** @a.2.1, align 4
; CHECK-NEXT: store i32* null, i32** getelementptr inbounds ([7 x i32*], [7 x i32*]* @a.1, i32 0, i64 1), align 16
; CHECK-NEXT: ret i32* null
; CHECK-NEXT: ret i32* [[X]]
;
%x = load i32*, i32** getelementptr inbounds ([2 x [7 x i32*]], [2 x [7 x i32*]]* @a, i64 0, i64 0, i64 0), align 1
store i32* null, i32** getelementptr inbounds ([2 x [7 x i32*]], [2 x [7 x i32*]]* @a, i64 0, i64 1, i64 1), align 16
%x = load i32*, i32** getelementptr inbounds ([3 x [7 x i32*]], [3 x [7 x i32*]]* @a, i64 0, i64 2, i64 1), align 4
store i32* null, i32** getelementptr inbounds ([3 x [7 x i32*]], [3 x [7 x i32*]]* @a, i64 0, i64 1, i64 1), align 16
ret i32* %x
}
define i32* @reduce_align_2() {
; CHECK-LABEL: @reduce_align_2(
; CHECK-NEXT: [[X:%.*]] = load i32*, i32** @a.2.2, align 16
; CHECK-NEXT: store i32* null, i32** getelementptr inbounds ([7 x i32*], [7 x i32*]* @a.1, i32 0, i64 2), align 4
; CHECK-NEXT: ret i32* null
; CHECK-NEXT: ret i32* [[X]]
;
%x = load i32*, i32** getelementptr inbounds ([2 x [7 x i32*]], [2 x [7 x i32*]]* @a, i64 0, i64 0, i64 0), align 1
store i32* null, i32** getelementptr inbounds ([2 x [7 x i32*]], [2 x [7 x i32*]]* @a, i64 0, i64 1, i64 2), align 4
%x = load i32*, i32** getelementptr inbounds ([3 x [7 x i32*]], [3 x [7 x i32*]]* @a, i64 0, i64 2, i64 2), align 16
store i32* null, i32** getelementptr inbounds ([3 x [7 x i32*]], [3 x [7 x i32*]]* @a, i64 0, i64 1, i64 2), align 4
ret i32* %x
}
define i32* @reduce_align_3() {
; CHECK-LABEL: @reduce_align_3(
; CHECK-NEXT: [[X:%.*]] = load i32*, i32** @a.2.3, align 4
; CHECK-NEXT: store i32* null, i32** getelementptr inbounds ([7 x i32*], [7 x i32*]* @a.1, i32 0, i64 3), align 8
; CHECK-NEXT: ret i32* null
; CHECK-NEXT: ret i32* [[X]]
;
%x = load i32*, i32** getelementptr inbounds ([2 x [7 x i32*]], [2 x [7 x i32*]]* @a, i64 0, i64 0, i64 0), align 1
store i32* null, i32** getelementptr inbounds ([2 x [7 x i32*]], [2 x [7 x i32*]]* @a, i64 0, i64 1, i64 3), align 8
%x = load i32*, i32** getelementptr inbounds ([3 x [7 x i32*]], [3 x [7 x i32*]]* @a, i64 0, i64 2, i64 3), align 4
store i32* null, i32** getelementptr inbounds ([3 x [7 x i32*]], [3 x [7 x i32*]]* @a, i64 0, i64 1, i64 3), align 8
ret i32* %x
}