1 files changed, 14 insertions, 6 deletions
diff --git a/tests/codegen/union-abi.rs b/tests/codegen/union-abi.rs
index a1c081d7d61..2f14682dfa5 100644
--- a/tests/codegen/union-abi.rs
+++ b/tests/codegen/union-abi.rs
@@ -1,9 +1,13 @@
 //@ ignore-emscripten vectors passed directly
 //@ compile-flags: -O -C no-prepopulate-passes
 // 32-bit x86 returns `f32` differently to avoid the x87 stack.
-//@ revisions: x86 other
+// 32-bit systems will return 128bit values using a return area pointer.
+//@ revisions: x86 bit32 bit64
 //@[x86] only-x86
-//@[other] ignore-x86
+//@[bit32] ignore-x86
+//@[bit32] only-32bit
+//@[bit64] ignore-x86
+//@[bit64] only-64bit
 
 // This test that using union forward the abi of the inner type, as
 // discussed in #54668
@@ -71,8 +75,9 @@ pub union UnionF32 {
     a: f32,
 }
 
-// other: define {{(dso_local )?}}float @test_UnionF32(float %_1)
 // x86: define {{(dso_local )?}}i32 @test_UnionF32(float %_1)
+// bit32: define {{(dso_local )?}}float @test_UnionF32(float %_1)
+// bit64: define {{(dso_local )?}}float @test_UnionF32(float %_1)
 #[no_mangle]
 pub fn test_UnionF32(_: UnionF32) -> UnionF32 {
     loop {}
@@ -83,8 +88,9 @@ pub union UnionF32F32 {
     b: f32,
 }
 
-// other: define {{(dso_local )?}}float @test_UnionF32F32(float %_1)
 // x86: define {{(dso_local )?}}i32 @test_UnionF32F32(float %_1)
+// bit32: define {{(dso_local )?}}float @test_UnionF32F32(float %_1)
+// bit64: define {{(dso_local )?}}float @test_UnionF32F32(float %_1)
 #[no_mangle]
 pub fn test_UnionF32F32(_: UnionF32F32) -> UnionF32F32 {
     loop {}
@@ -104,7 +110,9 @@ pub fn test_UnionF32U32(_: UnionF32U32) -> UnionF32U32 {
 pub union UnionU128 {
     a: u128,
 }
-// CHECK: define {{(dso_local )?}}i128 @test_UnionU128(i128 %_1)
+// x86: define {{(dso_local )?}}void @test_UnionU128({{.*}}sret([16 x i8]){{.*}}, i128 %_1)
+// bit32: define {{(dso_local )?}}void @test_UnionU128({{.*}}sret([16 x i8]){{.*}}, i128 %_1)
+// bit64: define {{(dso_local )?}}i128 @test_UnionU128(i128 %_1)
 #[no_mangle]
 pub fn test_UnionU128(_: UnionU128) -> UnionU128 {
     loop {}
@@ -123,7 +131,7 @@ pub fn test_CUnionU128(_: CUnionU128) {
 pub union UnionBool {
     b: bool,
 }
-// CHECK: define {{(dso_local )?}}noundef zeroext i1 @test_UnionBool(i8 %b)
+// CHECK: define {{(dso_local )?}}noundef zeroext i1 @test_UnionBool(i8{{.*}} %b)
 #[no_mangle]
 pub fn test_UnionBool(b: UnionBool) -> bool {
     unsafe { b.b }