Changes from V2:
* Remove the part that implicitly includes -mips16.
* Use isa_rev=2 instead of >=2.
MIPS16e2 ASE is a superset of MIPS16e ASE, which is again a superset
of MIPS16 ASE. Later, all of them are forbidden in Release 6.
Check if mips_isa_rev <= 5 when -mips16 is effective and >= 2
when -mmips16e2 is effective.
gcc/ChangeLog:
* config/mips/mips.cc(mips_option_override):Add conditions
for use of the -mmips16e2 and -mips16 option.
gcc/testsuite/ChangeLog:
* gcc.target/mips/mips16e2-cache.c: Use isa_rev=2 instead of
-mips32r2 option.
* gcc.target/mips/mips16e2-cmov.c: Add isa_rev=2 option.
* gcc.target/mips/mips16e2-gp.c: Same as above.
* gcc.target/mips/mips16e2.c: Same as above.
Co-developed-by: Rong Zhang <[email protected]>
Signed-off-by: Rong Zhang <[email protected]>
---
gcc/config/mips/mips.cc | 9 +++++++++
gcc/testsuite/gcc.target/mips/mips16e2-cache.c | 2 +-
gcc/testsuite/gcc.target/mips/mips16e2-cmov.c | 2 +-
gcc/testsuite/gcc.target/mips/mips16e2-gp.c | 2 +-
gcc/testsuite/gcc.target/mips/mips16e2.c | 2 +-
5 files changed, 13 insertions(+), 4 deletions(-)
diff --git a/gcc/config/mips/mips.cc b/gcc/config/mips/mips.cc
index 492fa285477..8b22fa06f2e 100644
--- a/gcc/config/mips/mips.cc
+++ b/gcc/config/mips/mips.cc
@@ -20654,6 +20654,15 @@ mips_option_override (void)
"-mcompact-branches=never");
}
+ /* MIPS16* ASE is forbidden in Release 6, so -mips16 is not available
+ for MIPS R6 onwards. */
+ if ((mips_base_compression_flags & MASK_MIPS16) && mips_isa_rev >= 6)
+ error ("MIPS16* ASE is forbidden in Release 6");
+
+ /* Make sure that the user use Release[2,5] when using -mmips16e2. */
+ if (TARGET_MIPS16E2 && mips_isa_rev < 2)
+ error ("%<-mmips16e2%> requires Release[2,5]");
+
/* Require explicit relocs for MIPS R6 onwards. This enables simplification
of the compact branch and jump support through the backend. */
if (!TARGET_EXPLICIT_RELOCS && mips_isa_rev >= 6)
diff --git a/gcc/testsuite/gcc.target/mips/mips16e2-cache.c
b/gcc/testsuite/gcc.target/mips/mips16e2-cache.c
index dcc39b580f5..1915ac47140 100644
--- a/gcc/testsuite/gcc.target/mips/mips16e2-cache.c
+++ b/gcc/testsuite/gcc.target/mips/mips16e2-cache.c
@@ -1,4 +1,4 @@
-/* { dg-options "-mno-abicalls -mgpopt -G8 -mabi=32 -mips32r2 -mips16
-mmips16e2" } */
+/* { dg-options "-mno-abicalls -mgpopt -G8 -mabi=32 isa_rev=2 -mips16
-mmips16e2" } */
/* { dg-skip-if "naming registers makes this a code quality test" { *-*-* } {
"-O0" } { "" } } */
/* Test cache. */
diff --git a/gcc/testsuite/gcc.target/mips/mips16e2-cmov.c
b/gcc/testsuite/gcc.target/mips/mips16e2-cmov.c
index 129ea23b65b..8d7d10da1d1 100644
--- a/gcc/testsuite/gcc.target/mips/mips16e2-cmov.c
+++ b/gcc/testsuite/gcc.target/mips/mips16e2-cmov.c
@@ -1,4 +1,4 @@
-/* { dg-options "-mno-abicalls -mgpopt -G8 -mabi=32 -mips16 -mmips16e2
-mbranch-cost=2" } */
+/* { dg-options "-mno-abicalls -mgpopt -G8 -mabi=32 isa_rev=2 -mips16
-mmips16e2 -mbranch-cost=2" } */
/* { dg-skip-if "code quality test" { *-*-* } { "-O0" } { "" } } */
/* Test MOVN. */
diff --git a/gcc/testsuite/gcc.target/mips/mips16e2-gp.c
b/gcc/testsuite/gcc.target/mips/mips16e2-gp.c
index 7955472bde3..fd6a4f6cc3e 100644
--- a/gcc/testsuite/gcc.target/mips/mips16e2-gp.c
+++ b/gcc/testsuite/gcc.target/mips/mips16e2-gp.c
@@ -1,4 +1,4 @@
-/* { dg-options "-mno-abicalls -mgpopt -G8 -mabi=32 -mips16 -mmips16e2" } */
+/* { dg-options "-mno-abicalls -mgpopt -G8 -mabi=32 isa_rev=2 -mips16
-mmips16e2" } */
/* { dg-skip-if "per-function expected output" { *-*-* } { "-flto" } { "" } }
*/
/* Generate GP-relative ADDIU. */
diff --git a/gcc/testsuite/gcc.target/mips/mips16e2.c
b/gcc/testsuite/gcc.target/mips/mips16e2.c
index 166aa742268..d23236c8ef5 100644
--- a/gcc/testsuite/gcc.target/mips/mips16e2.c
+++ b/gcc/testsuite/gcc.target/mips/mips16e2.c
@@ -1,4 +1,4 @@
-/* { dg-options "-mno-abicalls -mgpopt -G8 -mabi=32 -mips16 -mmips16e2" } */
+/* { dg-options "-mno-abicalls -mgpopt -G8 -mabi=32 isa_rev=2 -mips16
-mmips16e2" } */
/* { dg-skip-if "per-function expected output" { *-*-* } { "-flto" } { "" } }
*/
/* ANDI is a two operand instruction. Hence, it won't be generated if src and
--
2.51.0
