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[GVN] Add MemorySSA checks in tests 1/N #130261

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Merged
merged 1 commit into from
Mar 21, 2025
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[GVN] Add MemorySSA checks in tests 1/N #130261

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6 changes: 5 additions & 1 deletion llvm/test/Transforms/GVN/assume.ll
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=gvn -verify-analysis-invalidation -S | FileCheck %s
; RUN: opt < %s -passes=gvn -verify-analysis-invalidation -S | FileCheck --check-prefixes=CHECK,MDEP %s
; RUN: opt < %s -passes='gvn<memoryssa;no-memdep>' -verify-analysis-invalidation -S | FileCheck --check-prefixes=CHECK,MSSA %s

declare void @llvm.assume(i1)
declare void @use(i1)
Expand Down Expand Up @@ -59,3 +60,6 @@ define void @pr47496(i8 %x) {
call void @use(i1 %cmp)
ret void
}
;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
; MDEP: {{.*}}
; MSSA: {{.*}}
20 changes: 12 additions & 8 deletions llvm/test/Transforms/GVN/basic.ll
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Original file line number Diff line number Diff line change
@@ -1,15 +1,19 @@
; RUN: opt < %s -passes=gvn -S | FileCheck %s
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt < %s -passes=gvn -S | FileCheck %s --check-prefixes=CHECK,MDEP
; RUN: opt < %s -passes='gvn<memoryssa;no-memdep>' -S | FileCheck --check-prefixes=CHECK,MSSA %s

define i32 @main() {
; CHECK-LABEL: define i32 @main() {
; CHECK-NEXT: [[BLOCK1:.*:]]
; CHECK-NEXT: ret i32 0
;
block1:
%z1 = bitcast i32 0 to i32
br label %block2
%z1 = bitcast i32 0 to i32
br label %block2
block2:
%z2 = bitcast i32 0 to i32
ret i32 %z2
}

; CHECK: define i32 @main() {
; CHECK-NEXT: block1:
; CHECK-NEXT: ret i32 0
; CHECK-NEXT: }
;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
; MDEP: {{.*}}
; MSSA: {{.*}}
55 changes: 40 additions & 15 deletions llvm/test/Transforms/GVN/nonescaping.ll
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -S -passes=gvn 2>&1 | FileCheck %s
; RUN: opt < %s -S -passes=gvn 2>&1 | FileCheck %s --check-prefixes=CHECK,MDEP
; RUN: opt < %s -S -passes='gvn<memoryssa;no-memdep>' 2>&1 | FileCheck --check-prefixes=CHECK,MSSA %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"

Expand All @@ -9,10 +10,18 @@ declare noalias ptr @_Znwm(i64)
declare void @escape(ptr)

define i8 @test_malloc(ptr %p) {
; CHECK-LABEL: @test_malloc(
; CHECK-NEXT: [[OBJ:%.*]] = call ptr @malloc(i64 16)
; CHECK-NEXT: call void @escape(ptr [[OBJ]])
; CHECK-NEXT: ret i8 0
; MDEP-LABEL: @test_malloc(
; MDEP-NEXT: [[OBJ:%.*]] = call ptr @malloc(i64 16)
; MDEP-NEXT: call void @escape(ptr [[OBJ]])
; MDEP-NEXT: ret i8 0
;
; MSSA-LABEL: @test_malloc(
; MSSA-NEXT: [[V1:%.*]] = load i8, ptr [[P:%.*]], align 1
; MSSA-NEXT: [[OBJ:%.*]] = call ptr @malloc(i64 16)
; MSSA-NEXT: [[V2:%.*]] = load i8, ptr [[P]], align 1
; MSSA-NEXT: [[SUB:%.*]] = sub i8 [[V1]], [[V2]]
; MSSA-NEXT: call void @escape(ptr [[OBJ]])
; MSSA-NEXT: ret i8 [[SUB]]
;
%v1 = load i8, ptr %p
%obj = call ptr @malloc(i64 16)
Expand All @@ -23,10 +32,18 @@ define i8 @test_malloc(ptr %p) {
}

define i8 @test_calloc(ptr %p) {
; CHECK-LABEL: @test_calloc(
; CHECK-NEXT: [[OBJ:%.*]] = call ptr @calloc(i64 1, i64 16)
; CHECK-NEXT: call void @escape(ptr [[OBJ]])
; CHECK-NEXT: ret i8 0
; MDEP-LABEL: @test_calloc(
; MDEP-NEXT: [[OBJ:%.*]] = call ptr @calloc(i64 1, i64 16)
; MDEP-NEXT: call void @escape(ptr [[OBJ]])
; MDEP-NEXT: ret i8 0
;
; MSSA-LABEL: @test_calloc(
; MSSA-NEXT: [[V1:%.*]] = load i8, ptr [[P:%.*]], align 1
; MSSA-NEXT: [[OBJ:%.*]] = call ptr @calloc(i64 1, i64 16)
; MSSA-NEXT: [[V2:%.*]] = load i8, ptr [[P]], align 1
; MSSA-NEXT: [[SUB:%.*]] = sub i8 [[V1]], [[V2]]
; MSSA-NEXT: call void @escape(ptr [[OBJ]])
; MSSA-NEXT: ret i8 [[SUB]]
;
%v1 = load i8, ptr %p
%obj = call ptr @calloc(i64 1, i64 16)
Expand All @@ -37,10 +54,18 @@ define i8 @test_calloc(ptr %p) {
}

define i8 @test_opnew(ptr %p) {
; CHECK-LABEL: @test_opnew(
; CHECK-NEXT: [[OBJ:%.*]] = call ptr @_Znwm(i64 16)
; CHECK-NEXT: call void @escape(ptr [[OBJ]])
; CHECK-NEXT: ret i8 0
; MDEP-LABEL: @test_opnew(
; MDEP-NEXT: [[OBJ:%.*]] = call ptr @_Znwm(i64 16)
; MDEP-NEXT: call void @escape(ptr [[OBJ]])
; MDEP-NEXT: ret i8 0
;
; MSSA-LABEL: @test_opnew(
; MSSA-NEXT: [[V1:%.*]] = load i8, ptr [[P:%.*]], align 1
; MSSA-NEXT: [[OBJ:%.*]] = call ptr @_Znwm(i64 16)
; MSSA-NEXT: [[V2:%.*]] = load i8, ptr [[P]], align 1
; MSSA-NEXT: [[SUB:%.*]] = sub i8 [[V1]], [[V2]]
; MSSA-NEXT: call void @escape(ptr [[OBJ]])
; MSSA-NEXT: ret i8 [[SUB]]
;
%v1 = load i8, ptr %p
%obj = call ptr @_Znwm(i64 16)
Expand All @@ -49,5 +74,5 @@ define i8 @test_opnew(ptr %p) {
call void @escape(ptr %obj)
ret i8 %sub
}


;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
; CHECK: {{.*}}
30 changes: 22 additions & 8 deletions llvm/test/Transforms/GVN/pr14166.ll
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Original file line number Diff line number Diff line change
@@ -1,21 +1,35 @@
; RUN: opt -disable-basic-aa -passes=gvn -S < %s | FileCheck %s
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt -disable-basic-aa -passes=gvn -S < %s | FileCheck %s --check-prefixes=CHECK,MDEP
; RUN: opt -disable-basic-aa -passes='gvn<memoryssa;no-memdep>' -S < %s | FileCheck --check-prefixes=CHECK,MSSA %s
target datalayout = "e-p:32:32:32"
define <2 x i32> @test1() {
; MDEP-LABEL: define <2 x i32> @test1() {
; MDEP-NEXT: [[V1:%.*]] = alloca <2 x i32>, align 8
; MDEP-NEXT: call void @anything(ptr [[V1]])
; MDEP-NEXT: [[V2:%.*]] = load <2 x i32>, ptr [[V1]], align 8
; MDEP-NEXT: [[V3:%.*]] = inttoptr <2 x i32> [[V2]] to <2 x ptr>
; MDEP-NEXT: store <2 x ptr> [[V3]], ptr [[V1]], align 8
; MDEP-NEXT: [[TMP1:%.*]] = bitcast <2 x i32> [[V2]] to i64
; MDEP-NEXT: ret <2 x i32> [[V2]]
;
; MSSA-LABEL: define <2 x i32> @test1() {
; MSSA-NEXT: [[V1:%.*]] = alloca <2 x i32>, align 8
; MSSA-NEXT: call void @anything(ptr [[V1]])
; MSSA-NEXT: [[V2:%.*]] = load <2 x i32>, ptr [[V1]], align 8
; MSSA-NEXT: [[V3:%.*]] = inttoptr <2 x i32> [[V2]] to <2 x ptr>
; MSSA-NEXT: store <2 x ptr> [[V3]], ptr [[V1]], align 8
; MSSA-NEXT: [[V5:%.*]] = load <2 x i32>, ptr [[V1]], align 8
; MSSA-NEXT: ret <2 x i32> [[V5]]
%v1 = alloca <2 x i32>
call void @anything(ptr %v1)
%v2 = load <2 x i32>, ptr %v1
%v3 = inttoptr <2 x i32> %v2 to <2 x ptr>
store <2 x ptr> %v3, ptr %v1
%v5 = load <2 x i32>, ptr %v1
ret <2 x i32> %v5
; CHECK-LABEL: @test1(
; CHECK: %v1 = alloca <2 x i32>
; CHECK: call void @anything(ptr %v1)
; CHECK: %v2 = load <2 x i32>, ptr %v1
; CHECK: %v3 = inttoptr <2 x i32> %v2 to <2 x ptr>
; CHECK: store <2 x ptr> %v3, ptr %v1
; CHECK: ret <2 x i32> %v2
}

declare void @anything(ptr)

;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
; CHECK: {{.*}}