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Newer gcc versions support a R"..." construct, so we can't use
"abc"R"def" constructs without any space between R and the quotes,
when using -std=gnu99 (that is used by the user/test code).

This fixes this error:

  test/x86/vmexit.c:34:26: error: invalid character ' ' in raw string
  delimiter
  test/x86/vmexit.c: In function ‘main’:
  test/x86/vmexit.c:34: error: stray ‘R’ in program
  test/x86/vmexit.c:34:46: error: invalid character '
  ' in raw string delimiter
  test/x86/vmexit.c:34: error: expected ‘:’ or ‘)’ before string constant
  test/x86/vmexit.c:34: error: stray ‘R’ in program

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
---
 user/test/x86/apic.c   |   32 ++++++++++++++++----------------
 user/test/x86/vmexit.c |    2 +-
 2 files changed, 17 insertions(+), 17 deletions(-)

diff --git a/user/test/x86/apic.c b/user/test/x86/apic.c
index 9c6205b..2d963dc 100644
--- a/user/test/x86/apic.c
+++ b/user/test/x86/apic.c
@@ -54,14 +54,14 @@ asm (
     "push %r9  \n\t"
     "push %r8  \n\t"
 #endif
-    "push %"R"di \n\t"
-    "push %"R"si \n\t"
-    "push %"R"bp \n\t"
-    "push %"R"sp \n\t"
-    "push %"R"bx \n\t"
-    "push %"R"dx \n\t"
-    "push %"R"cx \n\t"
-    "push %"R"ax \n\t"
+    "push %" R "di \n\t"
+    "push %" R "si \n\t"
+    "push %" R "bp \n\t"
+    "push %" R "sp \n\t"
+    "push %" R "bx \n\t"
+    "push %" R "dx \n\t"
+    "push %" R "cx \n\t"
+    "push %" R "ax \n\t"
 #ifdef __x86_64__
     "mov %rsp, %rdi \n\t"
     "callq *8*16(%rsp) \n\t"
@@ -70,14 +70,14 @@ asm (
     "calll *4+4*8(%esp) \n\t"
     "add $4, %esp \n\t"
 #endif
-    "pop %"R"ax \n\t"
-    "pop %"R"cx \n\t"
-    "pop %"R"dx \n\t"
-    "pop %"R"bx \n\t"
-    "pop %"R"bp \n\t"
-    "pop %"R"bp \n\t"
-    "pop %"R"si \n\t"
-    "pop %"R"di \n\t"
+    "pop %" R "ax \n\t"
+    "pop %" R "cx \n\t"
+    "pop %" R "dx \n\t"
+    "pop %" R "bx \n\t"
+    "pop %" R "bp \n\t"
+    "pop %" R "bp \n\t"
+    "pop %" R "si \n\t"
+    "pop %" R "di \n\t"
 #ifdef __x86_64__
     "pop %r8  \n\t"
     "pop %r9  \n\t"
diff --git a/user/test/x86/vmexit.c b/user/test/x86/vmexit.c
index bd57bfa..7339e2b 100644
--- a/user/test/x86/vmexit.c
+++ b/user/test/x86/vmexit.c
@@ -31,7 +31,7 @@ int main()
 
 	t1 = rdtsc();
 	for (i = 0; i < N; ++i)
-		asm volatile ("push %%"R"bx; cpuid; pop %%"R"bx"
+		asm volatile ("push %%" R "bx; cpuid; pop %%" R "bx"
 			      : : : "eax", "ecx", "edx");
 	t2 = rdtsc();
 	printf("vmexit latency: %d\n", (int)((t2 - t1) / N));
-- 
1.6.0.2.GIT