[GVN][Tests] Add MSSA coverage to some PRE tests 3/N (#150603)

Previous patch in this series
llvm/llvm-project#137814

Author: madhur13490

llvm/test/Transforms/GVN/PRE/load-metadata.ll

@@ -1,14 +1,40 @@
-; 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>' < %s | FileCheck %s --check-prefixes=CHECK,MSSA
 
 define i32 @test1(ptr %p, i1 %C) {
-; CHECK-LABEL: @test1(
+; MDEP-LABEL: define i32 @test1(
+; MDEP-SAME: ptr [[P:%.*]], i1 [[C:%.*]]) {
+; MDEP-NEXT:  [[BLOCK1:.*:]]
+; MDEP-NEXT:    br i1 [[C]], label %[[BLOCK2:.*]], label %[[BLOCK3:.*]]
+; MDEP:       [[BLOCK2]]:
+; MDEP-NEXT:    [[PRE_PRE:%.*]] = load i32, ptr [[P]], align 4, !range [[RNG0:![0-9]+]], !invariant.group [[META1:![0-9]+]]
+; MDEP-NEXT:    br label %[[BLOCK4:.*]]
+; MDEP:       [[BLOCK3]]:
+; MDEP-NEXT:    store i32 0, ptr [[P]], align 4
+; MDEP-NEXT:    br label %[[BLOCK4]]
+; MDEP:       [[BLOCK4]]:
+; MDEP-NEXT:    [[PRE:%.*]] = phi i32 [ 0, %[[BLOCK3]] ], [ [[PRE_PRE]], %[[BLOCK2]] ]
+; MDEP-NEXT:    ret i32 [[PRE]]
+;
+; MSSA-LABEL: define i32 @test1(
+; MSSA-SAME: ptr [[P:%.*]], i1 [[C:%.*]]) {
+; MSSA-NEXT:  [[BLOCK1:.*:]]
+; MSSA-NEXT:    br i1 [[C]], label %[[BLOCK2:.*]], label %[[BLOCK3:.*]]
+; MSSA:       [[BLOCK2]]:
+; MSSA-NEXT:    br label %[[BLOCK4:.*]]
+; MSSA:       [[BLOCK3]]:
+; MSSA-NEXT:    store i32 0, ptr [[P]], align 4
+; MSSA-NEXT:    br label %[[BLOCK4]]
+; MSSA:       [[BLOCK4]]:
+; MSSA-NEXT:    [[PRE:%.*]] = load i32, ptr [[P]], align 4, !range [[RNG0:![0-9]+]], !invariant.group [[META1:![0-9]+]]
+; MSSA-NEXT:    ret i32 [[PRE]]
+;
 block1:
-	br i1 %C, label %block2, label %block3
+  br i1 %C, label %block2, label %block3
 
 block2:
- br label %block4
-; CHECK: block2:
-; CHECK-NEXT: load i32, ptr %p, align 4, !range !0, !invariant.group !1
+  br label %block4
 
 block3:
   store i32 0, ptr %p
@@ -22,3 +48,12 @@ block4:
 
 !0 = !{i32 40, i32 100}
 !1 = !{!"magic ptr"}
+;.
+; MDEP: [[RNG0]] = !{i32 40, i32 100}
+; MDEP: [[META1]] = !{!"magic ptr"}
+;.
+; MSSA: [[RNG0]] = !{i32 40, i32 100}
+; MSSA: [[META1]] = !{!"magic ptr"}
+;.
+;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
+; CHECK: {{.*}}

llvm/test/Transforms/GVN/PRE/load-pre-across-backedge.ll

@@ -1,5 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; RUN: opt -passes=gvn -S < %s | FileCheck %s
+; RUN: opt -passes=gvn -S < %s | FileCheck %s --check-prefixes=CHECK,MDEP
+; RUN: opt -passes='gvn<memoryssa>' -S < %s | FileCheck %s --check-prefixes=CHECK,MSSA
 
 ; Check that PRE-LOAD across backedge does not
 ; result in invalid dominator tree.
@@ -43,3 +44,6 @@ bb3:
   call void @use(i32 %v)
   br label %bb2
 }
+;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
+; MDEP: {{.*}}
+; MSSA: {{.*}}

llvm/test/Transforms/GVN/PRE/load-pre-nonlocal.ll

@@ -1,5 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; RUN: opt -S -o - -passes=gvn %s | FileCheck %s
+; RUN: opt -S -o - -passes=gvn %s | FileCheck %s --check-prefixes=CHECK,MDEP
+; RUN: opt -S -o - -passes='gvn<memoryssa>' %s | FileCheck %s --check-prefixes=CHECK,MSSA
 
 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
 
@@ -143,3 +144,6 @@ if.end:
   file: !12,
   isOptimized: true, flags: "-O2",
   splitDebugFilename: "abc.debug", emissionKind: 2)
+;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
+; MDEP: {{.*}}
+; MSSA: {{.*}}

llvm/test/Transforms/GVN/PRE/lpre-call-wrap.ll

@@ -1,5 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; RUN: opt -S -passes=gvn -enable-load-pre < %s | FileCheck %s
+; RUN: opt -S -passes=gvn -enable-load-pre < %s | FileCheck %s --check-prefixes=CHECK,MDEP
+; RUN: opt -S -passes='gvn<memoryssa>' -enable-load-pre < %s | FileCheck %s --check-prefixes=CHECK,MSSA
 ;
 ; Make sure the load in bb3.backedge is removed and moved into bb1 after the
 ; call.  This makes the non-call case faster.
@@ -18,31 +19,56 @@ target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f3
   %struct.A = type { i32, i32 }
 
 define void @_Z12testfunctionR1A(ptr %iter) {
-; CHECK-LABEL: @_Z12testfunctionR1A(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP0:%.*]] = load i32, ptr [[ITER:%.*]], align 4
-; CHECK-NEXT:    [[TMP1:%.*]] = icmp eq i32 [[TMP0]], 0
-; CHECK-NEXT:    br i1 [[TMP1]], label [[RETURN:%.*]], label [[BB_NPH:%.*]]
-; CHECK:       bb.nph:
-; CHECK-NEXT:    [[TMP2:%.*]] = getelementptr [[STRUCT_A:%.*]], ptr [[ITER]], i32 0, i32 1
-; CHECK-NEXT:    br label [[BB:%.*]]
-; CHECK:       bb:
-; CHECK-NEXT:    [[DOTRLE:%.*]] = phi i32 [ [[TMP0]], [[BB_NPH]] ], [ [[TMP6:%.*]], [[BB3_BACKEDGE:%.*]] ]
-; CHECK-NEXT:    [[TMP3:%.*]] = add i32 [[DOTRLE]], 1
-; CHECK-NEXT:    store i32 [[TMP3]], ptr [[ITER]], align 4
-; CHECK-NEXT:    [[TMP4:%.*]] = load i32, ptr [[TMP2]], align 4
-; CHECK-NEXT:    [[TMP5:%.*]] = icmp eq i32 [[TMP3]], [[TMP4]]
-; CHECK-NEXT:    br i1 [[TMP5]], label [[BB1:%.*]], label [[BB3_BACKEDGE]]
-; CHECK:       bb1:
-; CHECK-NEXT:    tail call void @_Z1gv()
-; CHECK-NEXT:    [[DOTPRE:%.*]] = load i32, ptr [[ITER]], align 4
-; CHECK-NEXT:    br label [[BB3_BACKEDGE]]
-; CHECK:       bb3.backedge:
-; CHECK-NEXT:    [[TMP6]] = phi i32 [ [[DOTPRE]], [[BB1]] ], [ [[TMP3]], [[BB]] ]
-; CHECK-NEXT:    [[TMP7:%.*]] = icmp eq i32 [[TMP6]], 0
-; CHECK-NEXT:    br i1 [[TMP7]], label [[RETURN]], label [[BB]]
-; CHECK:       return:
-; CHECK-NEXT:    ret void
+; MDEP-LABEL: @_Z12testfunctionR1A(
+; MDEP-NEXT:  entry:
+; MDEP-NEXT:    [[TMP0:%.*]] = load i32, ptr [[ITER:%.*]], align 4
+; MDEP-NEXT:    [[TMP1:%.*]] = icmp eq i32 [[TMP0]], 0
+; MDEP-NEXT:    br i1 [[TMP1]], label [[RETURN:%.*]], label [[BB_NPH:%.*]]
+; MDEP:       bb.nph:
+; MDEP-NEXT:    [[TMP2:%.*]] = getelementptr [[STRUCT_A:%.*]], ptr [[ITER]], i32 0, i32 1
+; MDEP-NEXT:    br label [[BB:%.*]]
+; MDEP:       bb:
+; MDEP-NEXT:    [[DOTRLE:%.*]] = phi i32 [ [[TMP0]], [[BB_NPH]] ], [ [[TMP6:%.*]], [[BB3_BACKEDGE:%.*]] ]
+; MDEP-NEXT:    [[TMP3:%.*]] = add i32 [[DOTRLE]], 1
+; MDEP-NEXT:    store i32 [[TMP3]], ptr [[ITER]], align 4
+; MDEP-NEXT:    [[TMP4:%.*]] = load i32, ptr [[TMP2]], align 4
+; MDEP-NEXT:    [[TMP5:%.*]] = icmp eq i32 [[TMP3]], [[TMP4]]
+; MDEP-NEXT:    br i1 [[TMP5]], label [[BB1:%.*]], label [[BB3_BACKEDGE]]
+; MDEP:       bb1:
+; MDEP-NEXT:    tail call void @_Z1gv()
+; MDEP-NEXT:    [[DOTPRE:%.*]] = load i32, ptr [[ITER]], align 4
+; MDEP-NEXT:    br label [[BB3_BACKEDGE]]
+; MDEP:       bb3.backedge:
+; MDEP-NEXT:    [[TMP6]] = phi i32 [ [[DOTPRE]], [[BB1]] ], [ [[TMP3]], [[BB]] ]
+; MDEP-NEXT:    [[TMP7:%.*]] = icmp eq i32 [[TMP6]], 0
+; MDEP-NEXT:    br i1 [[TMP7]], label [[RETURN]], label [[BB]]
+; MDEP:       return:
+; MDEP-NEXT:    ret void
+;
+; MSSA-LABEL: @_Z12testfunctionR1A(
+; MSSA-NEXT:  entry:
+; MSSA-NEXT:    [[TMP0:%.*]] = load i32, ptr [[ITER:%.*]], align 4
+; MSSA-NEXT:    [[TMP1:%.*]] = icmp eq i32 [[TMP0]], 0
+; MSSA-NEXT:    br i1 [[TMP1]], label [[RETURN:%.*]], label [[BB_NPH:%.*]]
+; MSSA:       bb.nph:
+; MSSA-NEXT:    [[TMP2:%.*]] = getelementptr [[STRUCT_A:%.*]], ptr [[ITER]], i32 0, i32 1
+; MSSA-NEXT:    br label [[BB:%.*]]
+; MSSA:       bb:
+; MSSA-NEXT:    [[DOTRLE:%.*]] = phi i32 [ [[TMP0]], [[BB_NPH]] ], [ [[TMP6:%.*]], [[BB3_BACKEDGE:%.*]] ]
+; MSSA-NEXT:    [[TMP3:%.*]] = add i32 [[DOTRLE]], 1
+; MSSA-NEXT:    store i32 [[TMP3]], ptr [[ITER]], align 4
+; MSSA-NEXT:    [[TMP4:%.*]] = load i32, ptr [[TMP2]], align 4
+; MSSA-NEXT:    [[TMP5:%.*]] = icmp eq i32 [[TMP3]], [[TMP4]]
+; MSSA-NEXT:    br i1 [[TMP5]], label [[BB1:%.*]], label [[BB3_BACKEDGE]]
+; MSSA:       bb1:
+; MSSA-NEXT:    tail call void @_Z1gv()
+; MSSA-NEXT:    br label [[BB3_BACKEDGE]]
+; MSSA:       bb3.backedge:
+; MSSA-NEXT:    [[TMP6]] = load i32, ptr [[ITER]], align 4
+; MSSA-NEXT:    [[TMP7:%.*]] = icmp eq i32 [[TMP6]], 0
+; MSSA-NEXT:    br i1 [[TMP7]], label [[RETURN]], label [[BB]]
+; MSSA:       return:
+; MSSA-NEXT:    ret void
 ;
 entry:
   %0 = getelementptr %struct.A, ptr %iter, i32 0, i32 0		; <ptr> [#uses=3]
@@ -76,3 +102,5 @@ return:		; preds = %bb3.backedge, %entry
 }
 
 declare void @_Z1gv()
+;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
+; CHECK: {{.*}}

llvm/test/Transforms/GVN/PRE/rle-addrspace-cast.ll

@@ -1,14 +1,30 @@
-; RUN: opt < %s -data-layout="e-p:32:32:32-p1:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-n8:16:32" -passes=gvn,dce -S | FileCheck %s
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
+; RUN: opt < %s -data-layout="e-p:32:32:32-p1:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-n8:16:32" -passes=gvn,dce -S | FileCheck %s --check-prefixes=CHECK,MDEP
+; RUN: opt < %s -data-layout="e-p:32:32:32-p1:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-n8:16:32" -passes='gvn<memoryssa>',dce -S | FileCheck %s --check-prefixes=CHECK,MSSA
 
 define i8 @coerce_offset0_addrspacecast(i32 %V, ptr %P) {
+; MDEP-LABEL: define i8 @coerce_offset0_addrspacecast(
+; MDEP-SAME: i32 [[V:%.*]], ptr [[P:%.*]]) {
+; MDEP-NEXT:    store i32 [[V]], ptr [[P]], align 4
+; MDEP-NEXT:    [[TMP1:%.*]] = lshr i32 [[V]], 16
+; MDEP-NEXT:    [[TMP2:%.*]] = trunc i32 [[TMP1]] to i8
+; MDEP-NEXT:    ret i8 [[TMP2]]
+;
+; MSSA-LABEL: define i8 @coerce_offset0_addrspacecast(
+; MSSA-SAME: i32 [[V:%.*]], ptr [[P:%.*]]) {
+; MSSA-NEXT:    store i32 [[V]], ptr [[P]], align 4
+; MSSA-NEXT:    [[P2:%.*]] = addrspacecast ptr [[P]] to ptr addrspace(1)
+; MSSA-NEXT:    [[P3:%.*]] = getelementptr i8, ptr addrspace(1) [[P2]], i32 2
+; MSSA-NEXT:    [[A:%.*]] = load i8, ptr addrspace(1) [[P3]], align 1
+; MSSA-NEXT:    ret i8 [[A]]
+;
   store i32 %V, ptr %P
 
   %P2 = addrspacecast ptr %P to ptr addrspace(1)
   %P3 = getelementptr i8, ptr addrspace(1) %P2, i32 2
 
   %A = load i8, ptr addrspace(1) %P3
   ret i8 %A
-; CHECK-LABEL: @coerce_offset0_addrspacecast(
-; CHECK-NOT: load
-; CHECK: ret i8
 }
+;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
+; CHECK: {{.*}}

llvm/test/Transforms/GVN/PRE/rle-semidominated.ll

@@ -1,13 +1,45 @@
-; 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>' -S | FileCheck %s --check-prefixes=CHECK,MSSA
 
 define i32 @main(ptr %p, i32 %x, i32 %y) {
+; MDEP-LABEL: define i32 @main(
+; MDEP-SAME: ptr [[P:%.*]], i32 [[X:%.*]], i32 [[Y:%.*]]) {
+; MDEP-NEXT:  [[BLOCK1:.*:]]
+; MDEP-NEXT:    [[CMP:%.*]] = icmp eq i32 [[X]], [[Y]]
+; MDEP-NEXT:    br i1 [[CMP]], label %[[BLOCK2:.*]], label %[[BLOCK3:.*]]
+; MDEP:       [[BLOCK2]]:
+; MDEP-NEXT:    [[DEAD_PRE:%.*]] = load i32, ptr [[P]], align 4
+; MDEP-NEXT:    br label %[[BLOCK4:.*]]
+; MDEP:       [[BLOCK3]]:
+; MDEP-NEXT:    store i32 0, ptr [[P]], align 4
+; MDEP-NEXT:    br label %[[BLOCK4]]
+; MDEP:       [[BLOCK4]]:
+; MDEP-NEXT:    [[DEAD:%.*]] = phi i32 [ 0, %[[BLOCK3]] ], [ [[DEAD_PRE]], %[[BLOCK2]] ]
+; MDEP-NEXT:    ret i32 [[DEAD]]
+;
+; MSSA-LABEL: define i32 @main(
+; MSSA-SAME: ptr [[P:%.*]], i32 [[X:%.*]], i32 [[Y:%.*]]) {
+; MSSA-NEXT:  [[BLOCK1:.*:]]
+; MSSA-NEXT:    [[Z:%.*]] = load i32, ptr [[P]], align 4
+; MSSA-NEXT:    [[CMP:%.*]] = icmp eq i32 [[X]], [[Y]]
+; MSSA-NEXT:    br i1 [[CMP]], label %[[BLOCK2:.*]], label %[[BLOCK3:.*]]
+; MSSA:       [[BLOCK2]]:
+; MSSA-NEXT:    br label %[[BLOCK4:.*]]
+; MSSA:       [[BLOCK3]]:
+; MSSA-NEXT:    store i32 0, ptr [[P]], align 4
+; MSSA-NEXT:    br label %[[BLOCK4]]
+; MSSA:       [[BLOCK4]]:
+; MSSA-NEXT:    [[DEAD:%.*]] = load i32, ptr [[P]], align 4
+; MSSA-NEXT:    ret i32 [[DEAD]]
+;
 block1:
   %z = load i32, ptr %p
   %cmp = icmp eq i32 %x, %y
-	br i1 %cmp, label %block2, label %block3
+  br i1 %cmp, label %block2, label %block3
 
 block2:
- br label %block4
+  br label %block4
 
 block3:
   %b = bitcast i32 0 to i32
@@ -19,18 +51,5 @@ block4:
   ret i32 %DEAD
 }
 
-; CHECK: define i32 @main(ptr %p, i32 %x, i32 %y) {
-; CHECK-NEXT: block1:
-; CHECK-NOT:    %z = load i32, ptr %p
-; CHECK-NEXT:   %cmp = icmp eq i32 %x, %y
-; CHECK-NEXT:   br i1 %cmp, label %block2, label %block3
-; CHECK: block2:
-; CHECK-NEXT:   %DEAD.pre = load i32, ptr %p
-; CHECK-NEXT:   br label %block4
-; CHECK: block3:
-; CHECK-NEXT:   store i32 0, ptr %p
-; CHECK-NEXT:   br label %block4
-; CHECK: block4:
-; CHECK-NEXT:   %DEAD = phi i32 [ 0, %block3 ], [ %DEAD.pre, %block2 ]
-; CHECK-NEXT:   ret i32 %DEAD
-; CHECK-NEXT: }
+;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
+; CHECK: {{.*}}