Revert "[CodeGenCXX] Treat 'this' as noalias in constructors"

This reverts commit https://reviews.llvm.org/rL344150 which causes
MachineOutliner related failures on the ppc64le multistage buildbot.

llvm-svn: 344526

1 files changed, 30 insertions, 30 deletions

diff --git a/clang/test/CodeGenCXX/inheriting-constructor.cpp b/clang/test/CodeGenCXX/inheriting-constructor.cpp
index 845b354383d..fa3e5ab8aab 100644
--- a/clang/test/CodeGenCXX/inheriting-constructor.cpp
+++ b/clang/test/CodeGenCXX/inheriting-constructor.cpp
@@ -45,7 +45,7 @@ namespace noninline_nonvirt {
   struct B : Z, A { Z z; using A::A; };
   B b(1, 2, &b);
   // ITANIUM-LABEL: define {{.*}} @__cxx_global_var_init
-  // ITANIUM: call void @_ZN1QC1Ei({{.*}} noalias %[[TMP:.*]], i32 2)
+  // ITANIUM: call void @_ZN1QC1Ei({{.*}} %[[TMP:.*]], i32 2)
   // ITANIUM: call void @_ZN17noninline_nonvirt1BCI1NS_1AEEiO1QPvU17pass_object_size0({{.*}} @_ZN17noninline_nonvirt1bE, i32 1, {{.*}} %[[TMP]], i8* {{.*}} @_ZN17noninline_nonvirt1bE{{.*}}, i{{32|64}} 12)
   // ITANIUM: call void @_ZN1QD1Ev({{.*}} %[[TMP]])
   // ITANIUM: call i32 @__cxa_atexit(
@@ -95,7 +95,7 @@ namespace noninline_virt {
   // constructor, which takes no arguments other than the this pointer and VTT.
   // ITANIUM_LABEL: define linkonce_odr void @_ZN14noninline_virt1CCI1NS_1AEEiO1QPvU17pass_object_size0(
   // ITANIUM: call void @_ZN14noninline_virt1AC2EiO1QPvU17pass_object_size0({{.*}} %{{.*}}, i32 %{{.*}}, %{{.*}}* {{.*}}, i8* %{{.*}}, i{{32|64}} %{{.*}})
-  // ITANIUM: call void @_ZN14noninline_virt1BCI2NS_1AEEiO1QPvU17pass_object_size0(%{{.*}}* noalias %{{.*}}, i8** getelementptr inbounds ([2 x i8*], [2 x i8*]* @_ZTTN14noninline_virt1CE, i64 0, i64 1))
+  // ITANIUM: call void @_ZN14noninline_virt1BCI2NS_1AEEiO1QPvU17pass_object_size0(%{{.*}}* %{{.*}}, i8** getelementptr inbounds ([2 x i8*], [2 x i8*]* @_ZTTN14noninline_virt1CE, i64 0, i64 1))
   // ITANIUM: store {{.*}} @_ZTVN14noninline_virt1CE
 
   // C constructor forwards to B constructor and A constructor. We pass the args
@@ -124,11 +124,11 @@ namespace inalloca_nonvirt {
   // WIN32: %[[TMP:.*]] = alloca
   // WIN32: call i8* @llvm.stacksave()
   // WIN32: %[[ARGMEM:.*]] = alloca inalloca
-  // WIN32: call {{.*}} @"??0Q@@QAE@H@Z"(%{{.*}}* noalias %[[TMP]], i32 4)
+  // WIN32: call {{.*}} @"??0Q@@QAE@H@Z"(%{{.*}}* %[[TMP]], i32 4)
   // WIN32: %[[ARG3:.*]] = getelementptr {{.*}} %[[ARGMEM]]
-  // WIN32: call {{.*}} @"??0Q@@QAE@H@Z"({{.*}}* noalias %[[ARG3]], i32 3)
+  // WIN32: call {{.*}} @"??0Q@@QAE@H@Z"({{.*}}* %[[ARG3]], i32 3)
   // WIN32: %[[ARG1:.*]] = getelementptr {{.*}} %[[ARGMEM]]
-  // WIN32: call {{.*}} @"??0Q@@QAE@H@Z"({{.*}}* noalias %[[ARG1]], i32 1)
+  // WIN32: call {{.*}} @"??0Q@@QAE@H@Z"({{.*}}* %[[ARG1]], i32 1)
   // WIN32: call {{.*}} @"??0Z@@QAE@XZ"(
   // WIN32: %[[ARG2:.*]] = getelementptr {{.*}} %[[ARGMEM]]
   // WIN32: store i32 2, i32* %[[ARG2]]
@@ -144,9 +144,9 @@ namespace inalloca_nonvirt {
   // WIN64: %[[TMP:.*]] = alloca
   // WIN64: %[[ARG3:.*]] = alloca
   // WIN64: %[[ARG1:.*]] = alloca
-  // WIN64: call {{.*}} @"??0Q@@QEAA@H@Z"({{.*}}* noalias %[[TMP]], i32 4)
-  // WIN64: call {{.*}} @"??0Q@@QEAA@H@Z"({{.*}}* noalias %[[ARG3]], i32 3)
-  // WIN64: call {{.*}} @"??0Q@@QEAA@H@Z"({{.*}}* noalias %[[ARG1]], i32 1)
+  // WIN64: call {{.*}} @"??0Q@@QEAA@H@Z"({{.*}}* %[[TMP]], i32 4)
+  // WIN64: call {{.*}} @"??0Q@@QEAA@H@Z"({{.*}}* %[[ARG3]], i32 3)
+  // WIN64: call {{.*}} @"??0Q@@QEAA@H@Z"({{.*}}* %[[ARG1]], i32 1)
   // WIN64: call {{.*}} @"??0Z@@QEAA@XZ"(
   // WIN64: call {{.*}} @"??0A@inalloca_nonvirt@@QEAA@UQ@@H0$$QEAU2@@Z"(%{{.*}}, %{{.*}}* %[[ARG1]], i32 2, %{{.*}}* %[[ARG3]], %{{.*}} %[[TMP]])
   // WIN64: call {{.*}} @"??0Z@@QEAA@XZ"(
@@ -160,11 +160,11 @@ namespace inalloca_nonvirt {
   // WIN32: %[[TMP:.*]] = alloca
   // WIN32: call i8* @llvm.stacksave()
   // WIN32: %[[ARGMEM:.*]] = alloca inalloca
-  // WIN32: call {{.*}} @"??0Q@@QAE@H@Z"(%{{.*}}* noalias %[[TMP]], i32 4)
+  // WIN32: call {{.*}} @"??0Q@@QAE@H@Z"(%{{.*}}* %[[TMP]], i32 4)
   // WIN32: %[[ARG3:.*]] = getelementptr {{.*}} %[[ARGMEM]]
-  // WIN32: call {{.*}} @"??0Q@@QAE@H@Z"({{.*}}* noalias %[[ARG3]], i32 3)
+  // WIN32: call {{.*}} @"??0Q@@QAE@H@Z"({{.*}}* %[[ARG3]], i32 3)
   // WIN32: %[[ARG1:.*]] = getelementptr {{.*}} %[[ARGMEM]]
-  // WIN32: call {{.*}} @"??0Q@@QAE@H@Z"({{.*}}* noalias %[[ARG1]], i32 1)
+  // WIN32: call {{.*}} @"??0Q@@QAE@H@Z"({{.*}}* %[[ARG1]], i32 1)
   // WIN32: call {{.*}} @"??0Z@@QAE@XZ"(
   // WIN32: %[[ARG2:.*]] = getelementptr {{.*}} %[[ARGMEM]]
   // WIN32: store i32 2, i32* %[[ARG2]]
@@ -180,9 +180,9 @@ namespace inalloca_nonvirt {
   // WIN64: %[[TMP:.*]] = alloca
   // WIN64: %[[ARG3:.*]] = alloca
   // WIN64: %[[ARG1:.*]] = alloca
-  // WIN64: call {{.*}} @"??0Q@@QEAA@H@Z"({{.*}}* noalias %[[TMP]], i32 4)
-  // WIN64: call {{.*}} @"??0Q@@QEAA@H@Z"({{.*}}* noalias %[[ARG3]], i32 3)
-  // WIN64: call {{.*}} @"??0Q@@QEAA@H@Z"({{.*}}* noalias %[[ARG1]], i32 1)
+  // WIN64: call {{.*}} @"??0Q@@QEAA@H@Z"({{.*}}* %[[TMP]], i32 4)
+  // WIN64: call {{.*}} @"??0Q@@QEAA@H@Z"({{.*}}* %[[ARG3]], i32 3)
+  // WIN64: call {{.*}} @"??0Q@@QEAA@H@Z"({{.*}}* %[[ARG1]], i32 1)
   // WIN64: call {{.*}} @"??0Z@@QEAA@XZ"(
   // WIN64: call {{.*}} @"??0A@inalloca_nonvirt@@QEAA@UQ@@H0$$QEAU2@@Z"(%{{.*}}, %{{.*}}* %[[ARG1]], i32 2, %{{.*}}* %[[ARG3]], %{{.*}} %[[TMP]])
   // WIN64: call {{.*}} @"??0Z@@QEAA@XZ"(
@@ -200,11 +200,11 @@ namespace inalloca_virt {
   // WIN32: %[[TMP:.*]] = alloca
   // WIN32: call i8* @llvm.stacksave()
   // WIN32: %[[ARGMEM:.*]] = alloca inalloca
-  // WIN32: call {{.*}} @"??0Q@@QAE@H@Z"(%{{.*}}* noalias %[[TMP]], i32 4)
+  // WIN32: call {{.*}} @"??0Q@@QAE@H@Z"(%{{.*}}* %[[TMP]], i32 4)
   // WIN32: %[[ARG3:.*]] = getelementptr {{.*}} %[[ARGMEM]]
-  // WIN32: call {{.*}} @"??0Q@@QAE@H@Z"({{.*}}* noalias %[[ARG3]], i32 3)
+  // WIN32: call {{.*}} @"??0Q@@QAE@H@Z"({{.*}}* %[[ARG3]], i32 3)
   // WIN32: %[[ARG1:.*]] = getelementptr {{.*}} %[[ARGMEM]]
-  // WIN32: call {{.*}} @"??0Q@@QAE@H@Z"({{.*}}* noalias %[[ARG1]], i32 1)
+  // WIN32: call {{.*}} @"??0Q@@QAE@H@Z"({{.*}}* %[[ARG1]], i32 1)
   // FIXME: It's dumb to round-trip this though memory and generate a branch.
   // WIN32: store i32 1, i32* %[[IS_MOST_DERIVED_ADDR:.*]]
   // WIN32: %[[IS_MOST_DERIVED:.*]] = load i32, i32* %[[IS_MOST_DERIVED_ADDR]]
@@ -231,9 +231,9 @@ namespace inalloca_virt {
   // WIN64: %[[TMP:.*]] = alloca
   // WIN64: %[[ARG3:.*]] = alloca
   // WIN64: %[[ARG1:.*]] = alloca
-  // WIN64: call {{.*}} @"??0Q@@QEAA@H@Z"({{.*}}* noalias %[[TMP]], i32 4)
-  // WIN64: call {{.*}} @"??0Q@@QEAA@H@Z"({{.*}}* noalias %[[ARG3]], i32 3)
-  // WIN64: call {{.*}} @"??0Q@@QEAA@H@Z"({{.*}}* noalias %[[ARG1]], i32 1)
+  // WIN64: call {{.*}} @"??0Q@@QEAA@H@Z"({{.*}}* %[[TMP]], i32 4)
+  // WIN64: call {{.*}} @"??0Q@@QEAA@H@Z"({{.*}}* %[[ARG3]], i32 3)
+  // WIN64: call {{.*}} @"??0Q@@QEAA@H@Z"({{.*}}* %[[ARG1]], i32 1)
   // WIN64: br i1
   // WIN64: call {{.*}} @"??0A@inalloca_virt@@QEAA@UQ@@H0$$QEAU2@@Z"(%{{.*}}, %{{.*}}* %[[ARG1]], i32 2, %{{.*}}* %[[ARG3]], %{{.*}} %[[TMP]])
   // WIN64: br
@@ -251,11 +251,11 @@ namespace inalloca_virt {
   // WIN32: %[[TMP:.*]] = alloca
   // WIN32: call i8* @llvm.stacksave()
   // WIN32: %[[ARGMEM:.*]] = alloca inalloca
-  // WIN32: call {{.*}} @"??0Q@@QAE@H@Z"(%{{.*}}* noalias %[[TMP]], i32 4)
+  // WIN32: call {{.*}} @"??0Q@@QAE@H@Z"(%{{.*}}* %[[TMP]], i32 4)
   // WIN32: %[[ARG3:.*]] = getelementptr {{.*}} %[[ARGMEM]]
-  // WIN32: call {{.*}} @"??0Q@@QAE@H@Z"({{.*}}* noalias %[[ARG3]], i32 3)
+  // WIN32: call {{.*}} @"??0Q@@QAE@H@Z"({{.*}}* %[[ARG3]], i32 3)
   // WIN32: %[[ARG1:.*]] = getelementptr {{.*}} %[[ARGMEM]]
-  // WIN32: call {{.*}} @"??0Q@@QAE@H@Z"({{.*}}* noalias %[[ARG1]], i32 1)
+  // WIN32: call {{.*}} @"??0Q@@QAE@H@Z"({{.*}}* %[[ARG1]], i32 1)
   // WIN32: store i32 1, i32* %[[IS_MOST_DERIVED_ADDR:.*]]
   // WIN32: %[[IS_MOST_DERIVED:.*]] = load i32, i32* %[[IS_MOST_DERIVED_ADDR]]
   // WIN32: %[[IS_MOST_DERIVED_i1:.*]] = icmp ne i32 %[[IS_MOST_DERIVED]], 0
@@ -288,9 +288,9 @@ namespace inalloca_virt {
   // WIN64: %[[TMP:.*]] = alloca
   // WIN64: %[[ARG3:.*]] = alloca
   // WIN64: %[[ARG1:.*]] = alloca
-  // WIN64: call {{.*}} @"??0Q@@QEAA@H@Z"({{.*}}* noalias %[[TMP]], i32 4)
-  // WIN64: call {{.*}} @"??0Q@@QEAA@H@Z"({{.*}}* noalias %[[ARG3]], i32 3)
-  // WIN64: call {{.*}} @"??0Q@@QEAA@H@Z"({{.*}}* noalias %[[ARG1]], i32 1)
+  // WIN64: call {{.*}} @"??0Q@@QEAA@H@Z"({{.*}}* %[[TMP]], i32 4)
+  // WIN64: call {{.*}} @"??0Q@@QEAA@H@Z"({{.*}}* %[[ARG3]], i32 3)
+  // WIN64: call {{.*}} @"??0Q@@QEAA@H@Z"({{.*}}* %[[ARG1]], i32 1)
   // WIN64: br i1
   // WIN64: store {{.*}} @"??_8C@inalloca_virt@@7B@"
   // WIN64: call {{.*}} @"??0A@inalloca_virt@@QEAA@UQ@@H0$$QEAU2@@Z"(%{{.*}}, %{{.*}}* %[[ARG1]], i32 2, %{{.*}}* %[[ARG3]], %{{.*}} %[[TMP]])
@@ -318,7 +318,7 @@ namespace inline_nonvirt {
   // ITANIUM: %[[B_CAST:.*]] = bitcast {{.*}} %[[THIS]]
   // ITANIUM: %[[A_CAST:.*]] = getelementptr {{.*}} %[[B_CAST]], i{{32|64}} 4
   // ITANIUM: %[[A:.*]] = bitcast {{.*}} %[[A_CAST]]
-  // ITANIUM: call void ({{.*}}, ...) @_ZN14inline_nonvirt1AC2E1QiS1_OS1_z(%{{.*}}* noalias %[[A]], {{.*}}, i32 2, {{.*}}, {{.*}}, i32 5, i32 6)
+  // ITANIUM: call void ({{.*}}, ...) @_ZN14inline_nonvirt1AC2E1QiS1_OS1_z(%{{.*}}* %[[A]], {{.*}}, i32 2, {{.*}}, {{.*}}, i32 5, i32 6)
   // ITANIUM: %[[Z_MEMBER:.*]] = getelementptr {{.*}} %[[THIS]], i32 0, i32 2
   // ITANIUM: call void @_ZN1ZC1Ev({{.*}} %[[Z_MEMBER]])
   // ITANIUM: call void @_ZN1QD1Ev(
@@ -337,7 +337,7 @@ namespace inline_nonvirt {
   // ITANIUM: %[[B_CAST:.*]] = bitcast {{.*}} %[[THIS]]
   // ITANIUM: %[[A_CAST:.*]] = getelementptr {{.*}} %[[B_CAST]], i{{32|64}} 4
   // ITANIUM: %[[A:.*]] = bitcast {{.*}} %[[A_CAST]]
-  // ITANIUM: call void ({{.*}}, ...) @_ZN14inline_nonvirt1AC2E1QiS1_OS1_z(%{{.*}}* noalias %[[A]], {{.*}}, i32 2, {{.*}}, {{.*}}, i32 5, i32 6)
+  // ITANIUM: call void ({{.*}}, ...) @_ZN14inline_nonvirt1AC2E1QiS1_OS1_z(%{{.*}}* %[[A]], {{.*}}, i32 2, {{.*}}, {{.*}}, i32 5, i32 6)
   // ITANIUM: %[[Z_MEMBER:.*]] = getelementptr {{.*}} %{{.*}}, i32 0, i32 2
   // ITANIUM: call void @_ZN1ZC1Ev({{.*}} %[[Z_MEMBER]])
   // ITANIUM: call void @_ZN1QD1Ev(
@@ -357,7 +357,7 @@ namespace inline_virt {
   // ITANIUM: %[[B_CAST:.*]] = bitcast {{.*}} %[[THIS:.*]]
   // ITANIUM: %[[A_CAST:.*]] = getelementptr {{.*}} %[[B_CAST]], i{{32|64}} {{12|16}}
   // ITANIUM: %[[A:.*]] = bitcast {{.*}} %[[A_CAST]]
-  // ITANIUM: call void ({{.*}}, ...) @_ZN11inline_virt1AC2E1QiS1_OS1_z(%{{.*}}* noalias %[[A]], {{.*}}, i32 2, {{.*}}, {{.*}}, i32 5, i32 6)
+  // ITANIUM: call void ({{.*}}, ...) @_ZN11inline_virt1AC2E1QiS1_OS1_z(%{{.*}}* %[[A]], {{.*}}, i32 2, {{.*}}, {{.*}}, i32 5, i32 6)
   // ITANIUM: call void @_ZN1ZC2Ev(
   // ITANIUM: call void @_ZN1ZC1Ev(
   // ITANIUM: call void @_ZN1QD1Ev(
@@ -376,7 +376,7 @@ namespace inline_virt {
   // ITANIUM: %[[B_CAST:.*]] = bitcast {{.*}} %[[THIS:.*]]
   // ITANIUM: %[[A_CAST:.*]] = getelementptr {{.*}} %[[B_CAST]], i{{32|64}} {{12|16}}
   // ITANIUM: %[[A:.*]] = bitcast {{.*}} %[[A_CAST]]
-  // ITANIUM: call void ({{.*}}, ...) @_ZN11inline_virt1AC2E1QiS1_OS1_z(%{{.*}}* noalias %[[A]], {{.*}}, i32 2, {{.*}}, {{.*}}, i32 5, i32 6)
+  // ITANIUM: call void ({{.*}}, ...) @_ZN11inline_virt1AC2E1QiS1_OS1_z(%{{.*}}* %[[A]], {{.*}}, i32 2, {{.*}}, {{.*}}, i32 5, i32 6)
   // ITANIUM: call void @_ZN11inline_virt1BCI2NS_1AEE1QiS1_OS1_z({{[^,]*}}, i8** getelementptr inbounds ([2 x i8*], [2 x i8*]* @_ZTTN11inline_virt1CE, i64 0, i64 1))
   // ITANIUM: store {{.*}} @_ZTVN11inline_virt1CE
   // ITANIUM: call void @_ZN1QD1Ev(