Vendor import of clang trunk r238337:

https://llvm.org/svn/llvm-project/cfe/trunk@238337

1 files changed, 26 insertions, 2 deletions

diff --git a/test/CodeGen/asm-reg-var-local.c b/test/CodeGen/asm-reg-var-local.c
index 9060e12..56dcab4 100644
--- a/test/CodeGen/asm-reg-var-local.c
+++ b/test/CodeGen/asm-reg-var-local.c
@@ -2,6 +2,7 @@
 // Exercise various use cases for local asm "register variables".
 
 int foo() {
+// CHECK-LABEL: define i32 @foo()
 // CHECK: [[A:%[a-zA-Z0-9]+]] = alloca i32
 
   register int a asm("rsi")=5;
@@ -15,10 +16,33 @@ int foo() {
 // CHECK:  store i32 42, i32* [[A]]
 
   asm volatile("; %0 This asm uses rsi" : : "r"(a));
-// CHECK:  [[TMP:%[a-zA-Z0-9]+]] = load i32* [[A]]
+// CHECK:  [[TMP:%[a-zA-Z0-9]+]] = load i32, i32* [[A]]
 // CHECK:  call void asm sideeffect "; $0 This asm uses rsi", "{rsi},~{dirflag},~{fpsr},~{flags}"(i32 [[TMP]])
 
   return a;
-// CHECK:  [[TMP1:%[a-zA-Z0-9]+]] = load i32* [[A]]
+// CHECK:  [[TMP1:%[a-zA-Z0-9]+]] = load i32, i32* [[A]]
+// CHECK:  ret i32 [[TMP1]]
+}
+
+int earlyclobber() {
+// CHECK-LABEL: define i32 @earlyclobber()
+// CHECK: [[A:%[a-zA-Z0-9]+]] = alloca i32
+
+  register int a asm("rsi")=5;
+// CHECK: store i32 5, i32* [[A]]
+
+  asm volatile("; %0 This asm defines rsi" : "=&r"(a));
+// CHECK: [[Z:%[a-zA-Z0-9]+]] = call i32 asm sideeffect "; $0 This asm defines rsi", "=&{rsi},~{dirflag},~{fpsr},~{flags}"()
+// CHECK: store i32 [[Z]], i32* [[A]]
+
+  a = 42;
+// CHECK:  store i32 42, i32* [[A]]
+
+  asm volatile("; %0 This asm uses rsi" : : "r"(a));
+// CHECK:  [[TMP:%[a-zA-Z0-9]+]] = load i32, i32* [[A]]
+// CHECK:  call void asm sideeffect "; $0 This asm uses rsi", "{rsi},~{dirflag},~{fpsr},~{flags}"(i32 [[TMP]])
+
+  return a;
+// CHECK:  [[TMP1:%[a-zA-Z0-9]+]] = load i32, i32* [[A]]
 // CHECK:  ret i32 [[TMP1]]
 }