Make some tests LLVM-optimization agnostic and remove some others that were beyond value/repair

Several of these tests (the two deleted, and the one removal edit) were
relying on the optimizer to collapse things to test some frontend
feature. The tests were really old and features seemed amply covered by
other parts of the test suite, so I just removed them.

If anyone thinks they're valuable enough to keep/fix, we can play around
with that, for sure.

(inspired by r252872)

llvm-svn: 253114

1 files changed, 9 insertions, 28 deletions

diff --git a/clang/test/CodeGen/function-attributes.c b/clang/test/CodeGen/function-attributes.c
index 3590dffaefe..8f682a715d7 100644
--- a/clang/test/CodeGen/function-attributes.c
+++ b/clang/test/CodeGen/function-attributes.c
@@ -1,5 +1,5 @@
-// RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm -Os -o - %s | FileCheck %s
-// RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm -Os -std=c99 -o - %s | FileCheck %s
+// RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm -disable-llvm-optzns -Os -o - %s | FileCheck %s
+// RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm -disable-llvm-optzns -Os -std=c99 -o - %s | FileCheck %s
 // CHECK: define signext i8 @f0(i32 %x) [[NUW:#[0-9]+]]
 // CHECK: define zeroext i8 @f1(i32 %x) [[NUW]]
 // CHECK: define void @f2(i8 signext %x) [[NUW]]
@@ -56,31 +56,11 @@ int f12(int arg) {
   return arg ? 0 : f10_t();
 }
 
-// CHECK: define void @f13() [[NUW]]
+// CHECK: define void @f13() [[NUW_OS_RN:#[0-9]+]]
 void f13(void) __attribute__((pure)) __attribute__((const));
 void f13(void){}
 
 
-// Ensure that these get inlined: rdar://6853279
-// CHECK-LABEL: define void @f14
-// CHECK-NOT: @ai_
-// CHECK: call void @f14_end
-static __inline__ __attribute__((always_inline))
-int ai_1() {  return 4; }
-
-static __inline__ __attribute__((always_inline))
-struct {
-  int a, b, c, d, e;
-} ai_2() { while (1) {} }
-
-void f14(int a) {
-  extern void f14_end(void);
-  if (a)
-    ai_2();
-  ai_1();
-  f14_end();
-}
-
 // <rdar://problem/7102668> [irgen] clang isn't setting the optsize bit on functions
 // CHECK-LABEL: define void @f15
 // CHECK: [[NUW]]
@@ -128,10 +108,11 @@ void f20(void) {
   _setjmp(0);
 }
 
-// CHECK: attributes [[NUW]] = { norecurse nounwind optsize readnone{{.*}} }
-// CHECK: attributes [[AI]] = { alwaysinline norecurse nounwind optsize readnone{{.*}} }
-// CHECK: attributes [[ALIGN]] = { norecurse nounwind optsize readnone alignstack=16{{.*}} }
+// CHECK: attributes [[NUW]] = { nounwind optsize{{.*}} }
+// CHECK: attributes [[AI]] = { alwaysinline nounwind optsize{{.*}} }
+// CHECK: attributes [[NUW_OS_RN]] = { nounwind optsize readnone{{.*}} }
+// CHECK: attributes [[ALIGN]] = { nounwind optsize alignstack=16{{.*}} }
 // CHECK: attributes [[RT]] = { nounwind optsize returns_twice{{.*}} }
-// CHECK: attributes [[NR]] = { noreturn nounwind optsize }
+// CHECK: attributes [[NR]] = { noreturn optsize }
 // CHECK: attributes [[NUW_RN]] = { nounwind optsize readnone }
-// CHECK: attributes [[RT_CALL]] = { nounwind optsize returns_twice }
+// CHECK: attributes [[RT_CALL]] = { optsize returns_twice }