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[PATCH, PR target/68416, i386, MPX] Add bounds registers to ALL_REGS set
- From: Ilya Enkovich <enkovich dot gnu at gmail dot com>
- To: gcc-patches at gcc dot gnu dot org
- Date: Thu, 26 Nov 2015 13:01:30 +0300
- Subject: [PATCH, PR target/68416, i386, MPX] Add bounds registers to ALL_REGS set
- Authentication-results: sourceware.org; auth=none
Hi,
This patch fixes redundant bndmov problem by adding bounds registers to
ALL_REGS set. This patch was bootstrapped and regtested on
x86_64-unknown-linux-gnu. OK for trunk and gcc-5-branch?
Thanks,
Ilya
--
gcc/
2015-11-26 Vladimir Makarov <vmakarov@redhat.com>
PR target/68416
* config/i386/i386.h (enum reg_class): Add
bounds registers to ALL_REGS.
gcc/testsuite/
2015-11-26 Ilya Enkovich <enkovich.gnu@gmail.com>
PR target/68416
* gcc.target/i386/mpx/pr68416.c: New test.
diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h
index ceda472..e69c9cc 100644
--- a/gcc/config/i386/i386.h
+++ b/gcc/config/i386/i386.h
@@ -1457,7 +1457,7 @@ enum reg_class
{ 0x1ff1ffff,0xffffffe0, 0x1f }, /* FLOAT_INT_SSE_REGS */ \
{ 0x0, 0x0, 0x1fc0 }, /* MASK_EVEX_REGS */ \
{ 0x0, 0x0, 0x1fe0 }, /* MASK_REGS */ \
-{ 0xffffffff,0xffffffff, 0x1fff } \
+{ 0xffffffff,0xffffffff,0x1ffff } \
}
/* The same information, inverted:
diff --git a/gcc/testsuite/gcc.target/i386/mpx/pr68416.c b/gcc/testsuite/gcc.target/i386/mpx/pr68416.c
new file mode 100644
index 0000000..10587ed
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/mpx/pr68416.c
@@ -0,0 +1,9 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -mmpx -fcheck-pointer-bounds" } */
+/* { dg-final { scan-assembler-not "bndmov" } } */
+
+int
+foo(int **arr, int i)
+{
+ return (*arr)[i];
+}