Use FileCheck to parameterize codegen tests over hashes

When things like our internal hashing or representations change,
it is inappropriate for these tests to suddenly fail for no reason.
The chance of error is reduced if we instead pattern-match.

tests/assembly/asm/global_asm.rs

@@ -25,9 +25,9 @@ global_asm!("movl ${}, %ecx", const 5, options(att_syntax));
 global_asm!("call {}", sym my_func);
 // CHECK: lea rax, [rip + MY_STATIC]
 global_asm!("lea rax, [rip + {}]", sym MY_STATIC);
-// CHECK: call _RNvCsddMtV7nAi4C_10global_asm6foobar
+// CHECK: call _RNvC[[CRATE_IDENT:[a-zA-Z0-9]{12}]]_10global_asm6foobar
 global_asm!("call {}", sym foobar);
-// CHECK: _RNvCsddMtV7nAi4C_10global_asm6foobar:
+// CHECK: _RNvC[[CRATE_IDENT]]_10global_asm6foobar:
 fn foobar() {
     loop {}
 }

tests/codegen/consts.rs

@@ -9,11 +9,11 @@
 // CHECK: @STATIC = {{.*}}, align 4
 
 // This checks the constants from inline_enum_const
-// CHECK: @alloc_af1f8e8e6f4b341431a1d405e652df2d = {{.*}}, align 2
+// CHECK: @alloc_[[INLINE_ENUM_HASH:[a-f0-9]{32}]] = {{.*}}, align 2
 
 // This checks the constants from {low,high}_align_const, they share the same
 // constant, but the alignment differs, so the higher one should be used
-// CHECK: [[LOW_HIGH:@alloc_[a-f0-9]+]] = {{.*}}, align 4
+// CHECK: [[LOW_HIGH:@alloc_[a-f0-9]{32}]] = {{.*}}, align 4
 
 #[derive(Copy, Clone)]
 // repr(i16) is required for the {low,high}_align_const test

tests/codegen/pattern_type_symbols.rs

@@ -15,9 +15,9 @@ fn foo<T>() {}
 
 pub fn bar() {
     // CHECK: call pattern_type_symbols::foo::<u32>
-    // CHECK: call void @_RINvCs3QvG2ESzx2Q_20pattern_type_symbols3foomEB2_
+    // CHECK: call void @_RINvC[[CRATE_IDENT:[a-zA-Z0-9]{12}]]_20pattern_type_symbols3foomEB2_
     foo::<u32>();
     // CHECK: call pattern_type_symbols::foo::<(u32, [(); 0], [(); 999999999], [(); true])>
-    // CHECK: call void @_RINvCs3QvG2ESzx2Q_20pattern_type_symbols3fooTmAum0_Aum3b9ac9ff_Aub1_EEB2_
+    // CHECK: call void @_RINvC[[CRATE_IDENT]]_20pattern_type_symbols3fooTmAum0_Aum3b9ac9ff_Aub1_EEB2_
     foo::<NanoU32>();
 }

tests/codegen/virtual-function-elimination.rs

@@ -81,7 +81,7 @@ fn taking_u(u: &dyn U) -> i32 {
 }
 
 pub fn taking_v(v: &dyn V) -> i32 {
-    // CHECK: @llvm.type.checked.load({{.*}}, i32 24, metadata !"NtCs64ITQYi9761_28virtual_function_elimination1V")
+    // CHECK: @llvm.type.checked.load({{.*}}, i32 24, metadata !"NtC[[CRATE_IDENT:[a-zA-Z0-9]{12}]]_28virtual_function_elimination1V")
     v.public_function()
 }
 
@@ -96,5 +96,5 @@ pub fn main() {
 // CHECK: ![[TYPE0]] = !{i64 0, !"[[MANGLED_TYPE0]]"}
 // CHECK: ![[VCALL_VIS0]] = !{i64 2}
 // CHECK: ![[TYPE1]] = !{i64 0, !"[[MANGLED_TYPE1]]"}
-// CHECK: ![[TYPE2]] = !{i64 0, !"NtCs64ITQYi9761_28virtual_function_elimination1V"}
+// CHECK: ![[TYPE2]] = !{i64 0, !"NtC[[CRATE_IDENT]]_28virtual_function_elimination1V"}
 // CHECK: ![[VCALL_VIS2]] = !{i64 1}