Set incoming stack boundary to 128 for 64-bit targets

For 64-bit targets, the incoming stack of interrupt handler is aligned
to 16 bytes.  Update ix86_minimum_incoming_stack_boundary to set the
incoming stack boundary of interrupt handler to 128 for 64-bit targets.

gcc/

2017-03-06  Julia Koval  <julia.koval@intel.com>

	PR target/79793
	* config/i386/i386.c (ix86_minimum_incoming_stack_boundary): Set
	incoming stack boundary to 128 for 64-bit targets.

gcc/testsuite/

2017-03-06  Julia Koval  <julia.koval@intel.com>

	PR target/79793
	 * gcc.target/i386/interrupt-12.c: Update scan-assembler-times
	 directives.
	 * gcc.target/i386/interrupt-13.c: Ditto.
	 * gcc.target/i386/interrupt-14.c: Ditto.
	 * gcc.target/i386/interrupt-15.c: Ditto.

From-SVN: r245926

7 files changed, 29 insertions, 14 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index d9fc3726..05001aa 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2017-03-06  Julia Koval  <julia.koval@intel.com>
+
+	PR target/79793
+	* config/i386/i386.c (ix86_minimum_incoming_stack_boundary): Set
+	incoming stack boundary to 128 for 64-bit targets.
+
 2017-03-06  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/79894
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 1b98207..e705a3e 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -13054,10 +13054,10 @@ ix86_minimum_incoming_stack_boundary (bool sibcall)
 {
   unsigned int incoming_stack_boundary;
 
-  /* Stack of interrupt handler is always aligned to MIN_STACK_BOUNDARY.
-   */
+  /* Stack of interrupt handler is aligned to 128 bits in 64bit
+     mode.  */
   if (cfun->machine->func_type != TYPE_NORMAL)
-    incoming_stack_boundary = MIN_STACK_BOUNDARY;
+    incoming_stack_boundary = TARGET_64BIT ? 128 : MIN_STACK_BOUNDARY;
   /* Prefer the one specified at command line. */
   else if (ix86_user_incoming_stack_boundary)
     incoming_stack_boundary = ix86_user_incoming_stack_boundary;
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 23adcd1..798d89b 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,12 @@
+2017-03-06  Julia Koval  <julia.koval@intel.com>
+
+	PR target/79793
+	 * gcc.target/i386/interrupt-12.c: Update scan-assembler-times
+	 directives.
+	 * gcc.target/i386/interrupt-13.c: Ditto.
+	 * gcc.target/i386/interrupt-14.c: Ditto.
+	 * gcc.target/i386/interrupt-15.c: Ditto.
+
 2017-03-06  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c++/79822
diff --git a/gcc/testsuite/gcc.target/i386/interrupt-12.c b/gcc/testsuite/gcc.target/i386/interrupt-12.c
index 2378005..078bbcf 100644
--- a/gcc/testsuite/gcc.target/i386/interrupt-12.c
+++ b/gcc/testsuite/gcc.target/i386/interrupt-12.c
@@ -17,12 +17,12 @@ fn1 (void *frame, uword_t error)
 /* { dg-final { scan-assembler-not "(push|pop)l\[\\t \]*%edi" { target ia32 } } } */
 /* { dg-final { scan-assembler-not "(push|pop)q\[\\t \]*%rax" { target { { ! ia32 } &&  nonpic } } } } */
 /* { dg-final { scan-assembler-not "(push|pop)q\[\\t \]*%r\[0-9\]+" { target { ! ia32 } } } } */
-/* { dg-final { scan-assembler-times "push(?:l|q)\[\\t \]*%(?:r|e)bp" 1 } } */
-/* { dg-final { scan-assembler-times "leave" 1 { target nonpic } } } */
+/* { dg-final { scan-assembler-times "pushl\[\\t \]*%ebp" 1 { target ia32 } } } */
+/* { dg-final { scan-assembler-times "leave" 1 { target { ia32 && nonpic } } } } */
 /* { dg-final { scan-assembler-times "pushl\[\\t \]*%eax" 1 { target ia32 } } } */
 /* { dg-final { scan-assembler-times "movl\[\\t \]*-4\\(%ebp\\),\[\\t \]*%eax" 1 { target ia32 } } } */
 /* { dg-final { scan-assembler-times "pushq\[\\t \]*%rdi" 1 { target { ! ia32 } } } } */
-/* { dg-final { scan-assembler-times "movq\[\\t \]*-8\\(%(?:r|e)bp\\),\[\\t \]*%rdi" 1 { target { { ! ia32 } && nonpic } } } } */
+/* { dg-final { scan-assembler-times "popq\[\\t \]*%rdi" 1 { target { ! ia32 } } } } */
 /* { dg-final { scan-assembler "(addl|leal).*4.*%esp" { target ia32 } } } */
 /* { dg-final { scan-assembler "(add|lea)(?:l|q)\[\\t \]*\\\$?8.*,\[\\t \]*%\[re\]?sp" { target { ! ia32 } } } } */
 /* { dg-final { scan-assembler-times "iret" 1 { target ia32 } } } */
diff --git a/gcc/testsuite/gcc.target/i386/interrupt-13.c b/gcc/testsuite/gcc.target/i386/interrupt-13.c
index 378145e..77ee3a5 100644
--- a/gcc/testsuite/gcc.target/i386/interrupt-13.c
+++ b/gcc/testsuite/gcc.target/i386/interrupt-13.c
@@ -17,12 +17,12 @@ fn1 (void *frame, uword_t error)
 /* { dg-final { scan-assembler-not "(push|pop)l\[\\t \]*%edi" { target ia32 } } } */
 /* { dg-final { scan-assembler-not "(push|pop)q\[\\t \]*%rax" { target { { ! ia32 } && nonpic } } } } */
 /* { dg-final { scan-assembler-not "(push|pop)q\[\\t \]*%r\[0-9\]+" { target { ! ia32 } } } } */
-/* { dg-final { scan-assembler-times "push(?:l|q)\[\\t \]*%(?:r|e)bp" 1 } } */
-/* { dg-final { scan-assembler-times "leave" 1 { target nonpic } } } */
+/* { dg-final { scan-assembler-times "pushl\[\\t \]*%ebp" 1 { target ia32 } } } */
+/* { dg-final { scan-assembler-times "leave" 1 { target { ia32 && nonpic } } } } */
 /* { dg-final { scan-assembler-times "pushl\[\\t \]*%eax" 1 { target ia32 } } } */
 /* { dg-final { scan-assembler-times "movl\[\\t \]*-4\\(%ebp\\),\[\\t \]*%eax" 1 { target ia32 } } } */
 /* { dg-final { scan-assembler-times "pushq\[\\t \]*%rdi" 1 { target { ! ia32 } } } } */
-/* { dg-final { scan-assembler-times "movq\[\\t \]*-8\\(%(?:r|e)bp\\),\[\\t \]*%rdi" 1 { target { { ! ia32 } && nonpic } } } } */
+/* { dg-final { scan-assembler-times "popq\[\\t \]*%rdi" 1 { target { ! ia32 } } } } */
 /* { dg-final { scan-assembler "(addl|leal).*4.*%esp" { target ia32 } } } */
 /* { dg-final { scan-assembler "(add|lea)(?:l|q)\[\\t \]*\\\$?8.*,\[\\t \]*%\[re\]?sp" { target { ! ia32 } } } } */
 /* { dg-final { scan-assembler-times "iret" 1 { target ia32 } } } */
diff --git a/gcc/testsuite/gcc.target/i386/interrupt-14.c b/gcc/testsuite/gcc.target/i386/interrupt-14.c
index f574f4f..92b3cb0 100644
--- a/gcc/testsuite/gcc.target/i386/interrupt-14.c
+++ b/gcc/testsuite/gcc.target/i386/interrupt-14.c
@@ -23,10 +23,10 @@ fn2 (void *frame)
 /* { dg-final { scan-assembler-not "(push|pop)(l|q)\[\\t \]*%(r|e)si" } } */
 /* { dg-final { scan-assembler-not "(push|pop)q\[\\t \]*%r\[8-9\]+" { target { ! ia32 } } } } */
 /* { dg-final { scan-assembler-not "(push|pop)q\[\\t \]*%r1\[0-5\]+" { target { ! ia32 } } } } */
-/* { dg-final { scan-assembler-times "push(?:l|q)\[\\t \]*%(?:r|e)bp" 2 } } */
+/* { dg-final { scan-assembler-times "pushl\[\\t \]*%ebp" 2 { target ia32 } } } */
 /* { dg-final { scan-assembler-times "leave" 2 { target ia32 } } } */
 /* { dg-final { scan-assembler-times "pushq\[\\t \]*%rdi" 2 { target { ! ia32 } } } } */
-/* { dg-final { scan-assembler-times "movq\[\\t \]*-8\\(%(?:r|e)bp\\),\[\\t \]*%rdi" 2 { target { { ! ia32 } && nonpic } } } } */
+/* { dg-final { scan-assembler-times "popq\[\\t \]*%rdi" 2 { target { ! ia32 } } } } */
 /* { dg-final { scan-assembler-times "iret" 2 { target ia32 } } } */
 /* { dg-final { scan-assembler-times "iretq" 2 { target { ! ia32 } } } } */
 /* { dg-final { scan-assembler-times "\tcld" 2 } } */
diff --git a/gcc/testsuite/gcc.target/i386/interrupt-15.c b/gcc/testsuite/gcc.target/i386/interrupt-15.c
index 701ab2f..2a0d260 100644
--- a/gcc/testsuite/gcc.target/i386/interrupt-15.c
+++ b/gcc/testsuite/gcc.target/i386/interrupt-15.c
@@ -24,12 +24,12 @@ fn2 (void *frame, uword_t error)
 /* { dg-final { scan-assembler-not "(push|pop)l\[\\t \]*%edi" { target ia32 } } } */
 /* { dg-final { scan-assembler-not "(push|pop)q\[\\t \]*%rax" { target { { ! ia32 } && nonpic } } } } */
 /* { dg-final { scan-assembler-not "(push|pop)q\[\\t \]*%r\[0-9\]+" { target { ! ia32 } } } } */
-/* { dg-final { scan-assembler-times "push(?:l|q)\[\\t \]*%(?:r|e)bp" 2 } } */
-/* { dg-final { scan-assembler-times "leave" 2 { target nonpic } } } */
+/* { dg-final { scan-assembler-times "pushl\[\\t \]*%ebp" 2 { target ia32 } } } */
+/* { dg-final { scan-assembler-times "leave" 2 { target { ia32 && nonpic } } } } */
 /* { dg-final { scan-assembler-times "pushl\[\\t \]*%eax" 2 { target ia32 } } } */
 /* { dg-final { scan-assembler-times "movl\[\\t \]*-4\\(%ebp\\),\[\\t \]*%eax" 2 { target ia32 } } } */
 /* { dg-final { scan-assembler-times "pushq\[\\t \]*%rdi" 2 { target { ! ia32 } } } } */
-/* { dg-final { scan-assembler-times "movq\[\\t \]*-8\\(%(?:r|e)bp\\),\[\\t \]*%rdi" 2 { target { { ! ia32 } && nonpic } } } } */
+/* { dg-final { scan-assembler-times "popq\[\\t \]*%rdi" 2 { target { ! ia32 } } } } */
 /* { dg-final { scan-assembler "(addl|leal).*4.*%esp" { target ia32 } } } */
 /* { dg-final { scan-assembler "(add|lea)(?:l|q)\[\\t \]*\\\$?8.*,\[\\t \]*%\[re\]?sp" { target { ! ia32 } } } } */
 /* { dg-final { scan-assembler-times "iret" 2 { target ia32 } } } */