Track whether an AggValueSlot is potentially aliased, and do not

emit call results into potentially aliased slots.  This allows us
to properly mark indirect return slots as noalias, at the cost
of requiring an extra memcpy when assigning an aggregate call
result into a l-value.  It also brings us into compliance with
the x86-64 ABI.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138599 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 14 insertions, 14 deletions

diff --git a/test/CodeGen/arm-arguments.c b/test/CodeGen/arm-arguments.c
index 081bc89dcd..3ae3b8ecd2 100644
--- a/test/CodeGen/arm-arguments.c
+++ b/test/CodeGen/arm-arguments.c
@@ -28,13 +28,13 @@ struct s4 { struct s4_0 { int f0; } f0; };
 struct s4 f4(void) {}
 
 // APCS-GNU: define void @f5(
-// APCS-GNU: struct.s5* sret
+// APCS-GNU: struct.s5* noalias sret
 // AAPCS: define arm_aapcscc i32 @f5()
 struct s5 { struct { } f0; int f1; };
 struct s5 f5(void) {}
 
 // APCS-GNU: define void @f6(
-// APCS-GNU: struct.s6* sret
+// APCS-GNU: struct.s6* noalias sret
 // AAPCS: define arm_aapcscc i32 @f6()
 struct s6 { int f0[1]; };
 struct s6 f6(void) {}
@@ -45,7 +45,7 @@ struct s7 { struct { int : 0; } f0; };
 struct s7 f7(void) {}
 
 // APCS-GNU: define void @f8(
-// APCS-GNU: struct.s8* sret
+// APCS-GNU: struct.s8* noalias sret
 // AAPCS: define arm_aapcscc void @f8()
 struct s8 { struct { int : 0; } f0[1]; };
 struct s8 f8(void) {}
@@ -61,7 +61,7 @@ struct s10 { int f0; int : 0; int : 0; };
 struct s10 f10(void) {}
 
 // APCS-GNU: define void @f11(
-// APCS-GNU: struct.s11* sret
+// APCS-GNU: struct.s11* noalias sret
 // AAPCS: define arm_aapcscc i32 @f11()
 struct s11 { int : 0; int f0; };
 struct s11 f11(void) {}
@@ -72,7 +72,7 @@ union u12 { char f0; short f1; int f2; };
 union u12 f12(void) {}
 
 // APCS-GNU: define void @f13(
-// APCS-GNU: struct.s13* sret
+// APCS-GNU: struct.s13* noalias sret
 
 // FIXME: This should return a float.
 // AAPCS-FIXME: darm_aapcscc efine float @f13()
@@ -80,7 +80,7 @@ struct s13 { float f0; };
 struct s13 f13(void) {}
 
 // APCS-GNU: define void @f14(
-// APCS-GNU: union.u14* sret
+// APCS-GNU: union.u14* noalias sret
 // AAPCS: define arm_aapcscc i32 @f14()
 union u14 { float f0; };
 union u14 f14(void) {}
@@ -104,13 +104,13 @@ struct s18 { short f0; char f1 : 4; };
 struct s18 f18(void) {}
 
 // APCS-GNU: define void @f19(
-// APCS-GNU: struct.s19* sret
+// APCS-GNU: struct.s19* noalias sret
 // AAPCS: define arm_aapcscc i32 @f19()
 struct s19 { int f0; struct s8 f1; };
 struct s19 f19(void) {}
 
 // APCS-GNU: define void @f20(
-// APCS-GNU: struct.s20* sret
+// APCS-GNU: struct.s20* noalias sret
 // AAPCS: define arm_aapcscc i32 @f20()
 struct s20 { struct s8 f1; int f0; };
 struct s20 f20(void) {}
@@ -128,10 +128,10 @@ struct s21 f21(void) {}
 // APCS-GNU: define i128 @f27()
 // AAPCS: define arm_aapcscc i16 @f22()
 // AAPCS: define arm_aapcscc i32 @f23()
-// AAPCS: define arm_aapcscc void @f24({{.*}} sret
-// AAPCS: define arm_aapcscc void @f25({{.*}} sret
-// AAPCS: define arm_aapcscc void @f26({{.*}} sret
-// AAPCS: define arm_aapcscc void @f27({{.*}} sret
+// AAPCS: define arm_aapcscc void @f24({{.*}} noalias sret
+// AAPCS: define arm_aapcscc void @f25({{.*}} noalias sret
+// AAPCS: define arm_aapcscc void @f26({{.*}} noalias sret
+// AAPCS: define arm_aapcscc void @f27({{.*}} noalias sret
 _Complex char       f22(void) {}
 _Complex short      f23(void) {}
 _Complex int        f24(void) {}
@@ -149,7 +149,7 @@ struct s28 f28() {}
 struct s29 { _Complex short f0; };
 struct s29 f29() {}
 
-// APCS-GNU: define void @f30({{.*}} sret
-// AAPCS: define arm_aapcscc void @f30({{.*}} sret
+// APCS-GNU: define void @f30({{.*}} noalias sret
+// AAPCS: define arm_aapcscc void @f30({{.*}} noalias sret
 struct s30 { _Complex int f0; };
 struct s30 f30() {}