Add tests for all regparm values

Author: winstonallo

tests/assembly-llvm/regparm-module-flag.rs

@@ -1,8 +1,11 @@
 //@ add-core-stubs
 //@ assembly-output: emit-asm
-//@ compile-flags: -O -Zregparm=3 --target=i686-unknown-linux-gnu -C relocation-model=static
+//@ compile-flags: -O --target=i686-unknown-linux-gnu -Crelocation-model=static
+//@ revisions: REGPARM1 REGPARM2 REGPARM3
+//@[REGPARM1] compile-flags: -Zregparm=1
+//@[REGPARM2] compile-flags: -Zregparm=2
+//@[REGPARM3] compile-flags: -Zregparm=3
 //@ needs-llvm-components: x86
-
 #![feature(no_core)]
 #![no_std]
 #![no_core]
@@ -18,20 +21,38 @@ unsafe extern "C" {
 
 #[unsafe(no_mangle)]
 pub unsafe extern "C" fn entrypoint(len: usize, ptr: *mut c_void, val: i32) -> *mut c_void {
-    // CHECK-LABEL: entrypoint
-    // CHECK: mov{{.*}}eax
-    // CHECK: mov{{.*}}ecx
-    // CHECK: mov{{.*}}esi
-    // CHECK: jmp{{.*}}memset
+    // REGPARM1-LABEL: entrypoint
+    // REGPARM1: movl %eax, %ecx
+    // REGPARM1: calll memset
+
+    // REGPARM2-LABEL: entrypoint
+    // REGPARM2: movl %e{{.*}}, (%esp)
+    // REGPARM2: movl %e{{.*}}, %eax
+    // REGPARM2: calll memset
+
+    // REGPARM3-LABEL: entrypoint
+    // REGPARM3: movl %e{{.*}}, %esi
+    // REGPARM3: movl %e{{.*}}, %eax
+    // REGPARM3: movl %e{{.*}}, %ecx
+    // REGPARM3: jmp memset
     unsafe { memset(ptr, val, len) }
 }
 
 #[unsafe(no_mangle)]
 pub unsafe extern "C" fn non_builtin_entrypoint(len: usize, ptr: *mut c_void, val: i32) -> *mut c_void {
-    // CHECK-LABEL: my_entrypoint
-    // CHECK: mov{{.*}}eax
-    // CHECK: mov{{.*}}ecx
-    // CHECK: mov{{.*}}esi
-    // CHECK: jmp{{.*}}memset
+    // REGPARM1-LABEL: non_builtin_entrypoint
+    // REGPARM1: movl %eax, %ecx
+    // REGPARM1: calll non_builtin_memset
+
+    // REGPARM2-LABEL: non_builtin_entrypoint
+    // REGPARM2: movl %e{{.*}}, (%esp)
+    // REGPARM2: movl %e{{.*}}, %eax
+    // REGPARM2: calll non_builtin_memset
+
+    // REGPARM3-LABEL: non_builtin_entrypoint
+    // REGPARM3: movl %e{{.*}}, %esi
+    // REGPARM3: movl %e{{.*}}, %eax
+    // REGPARM3: movl %e{{.*}}, %ecx
+    // REGPARM3: jmp non_builtin_memset
     unsafe { non_builtin_memset(ptr, val, len) }
 }