Rollup merge of #93087 - ricobbe:alt-calling-convention-test-fix, r=Mark-Simulacrum

Fix src/test/run-make/raw-dylib-alt-calling-convention

Fix the test headers so that the test now runs on all intended platforms; it is currently ignored on all platforms because the headers are incorrect.  Also comment out a couple of function calls that fail because of an unrelated problem, described in issue #91167.

Author: matthiaskrgr

src/test/run-make/raw-dylib-alt-calling-convention/Makefile

@@ -1,12 +1,17 @@
 # Test the behavior of #[link(.., kind = "raw-dylib")] with alternative calling conventions.
 
-# only-i686-pc-windows-msvc
+# only-x86
+# only-windows
 
 -include ../../run-make-fulldeps/tools.mk
 
 all:
 	$(call COMPILE_OBJ,"$(TMPDIR)"/extern.obj,extern.c)
+ifdef IS_MSVC
 	$(CC) "$(TMPDIR)"/extern.obj -link -dll -out:"$(TMPDIR)"/extern.dll
+else
+	$(CC) "$(TMPDIR)"/extern.obj -shared -o "$(TMPDIR)"/extern.dll
+endif
 	$(RUSTC) --crate-type lib --crate-name raw_dylib_alt_calling_convention_test lib.rs
 	$(RUSTC) --crate-type bin driver.rs -L "$(TMPDIR)"
 	"$(TMPDIR)"/driver > "$(TMPDIR)"/output.txt

src/test/run-make/raw-dylib-alt-calling-convention/lib.rs

@@ -62,9 +62,12 @@ pub fn library_function() {
         fastcall_fn_2(16, 3.5);
         fastcall_fn_3(3.5);
         fastcall_fn_4(1, 2, 3.0);
-        fastcall_fn_5(S { x: 1, y: 2 }, 16);
+        // FIXME: 91167
+        // rustc generates incorrect code for the calls to fastcall_fn_5 and fastcall_fn_7
+        // on i686-pc-windows-gnu; commenting these out until the indicated issue is fixed.
+        //fastcall_fn_5(S { x: 1, y: 2 }, 16);
         fastcall_fn_6(Some(&S { x: 10, y: 12 }));
-        fastcall_fn_7(S2 { x: 15, y: 16 }, 3);
+        //fastcall_fn_7(S2 { x: 15, y: 16 }, 3);
         fastcall_fn_8(S3 { x: [1, 2, 3, 4, 5] }, S3 { x: [6, 7, 8, 9, 10] });
         fastcall_fn_9(1, 3.0);
     }

src/test/run-make/raw-dylib-alt-calling-convention/output.txt

@@ -11,8 +11,6 @@ fastcall_fn_1(14)
 fastcall_fn_2(16, 3.5)
 fastcall_fn_3(3.5)
 fastcall_fn_4(1, 2, 3.0)
-fastcall_fn_5(S { x: 1, y: 2 }, 16)
 fastcall_fn_6(S { x: 10, y: 12 })
-fastcall_fn_7(S2 { x: 15, y: 16 }, 3)
 fastcall_fn_8(S3 { x: [1, 2, 3, 4, 5] }, S3 { x: [6, 7, 8, 9, 10] })
 fastcall_fn_9(1, 3.0)