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| author | Matt Turner <mattst88@gmail.com> | 2019-09-26 10:52:42 +0000 |
|---|---|---|
| committer | Kyrylo Tkachov <ktkachov@gcc.gnu.org> | 2019-09-26 10:52:42 +0000 |
| commit | 6fdbe41963a7aecad80f27e9805c7e18cbd4ab48 (patch) | |
| tree | f1555196e11cd3694bc1f495ac51ceb461758f69 | |
| parent | 2b5b5e24149160e38ff3cd98c6a911f0eba4acc5 (diff) | |
| download | gcc-6fdbe41963a7aecad80f27e9805c7e18cbd4ab48.zip gcc-6fdbe41963a7aecad80f27e9805c7e18cbd4ab48.tar.gz gcc-6fdbe41963a7aecad80f27e9805c7e18cbd4ab48.tar.bz2 | |
driver: Also prune joined switches with negation
When -march=native is passed to host_detect_local_cpu to the backend,
it overrides all command lines after it. That means
$ gcc -march=native -march=armv8-a
is treated as
$ gcc -march=armv8-a -march=native
Prune joined switches with Negative and RejectNegative to allow
-march=armv8-a to override previous -march=native on command-line.
This is the same fix as was applied for i386 in SVN revision 269164 but for
aarch64 and arm.
2019-09-26 Matt Turner <mattst88@gmail.com>
PR driver/69471
* config/aarch64/aarch64.opt (march=): Add Negative(march=).
(mtune=): Add Negative(mtune=).
(mcpu=): Add Negative(mcpu=).
* config/arm/arm.opt: Likewise.
From-SVN: r276148
| -rw-r--r-- | gcc/ChangeLog | 8 | ||||
| -rw-r--r-- | gcc/config/aarch64/aarch64.opt | 6 | ||||
| -rw-r--r-- | gcc/config/arm/arm.opt | 6 |
3 files changed, 14 insertions, 6 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index ac39c2f..98fa0ff 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,11 @@ +2019-09-26 Matt Turner <mattst88@gmail.com> + + PR driver/69471 + * config/aarch64/aarch64.opt (march=): Add Negative(march=). + (mtune=): Add Negative(mtune=). + (mcpu=): Add Negative(mcpu=). + * config/arm/arm.opt: Likewise. + 2019-09-26 Kyrylo Tkachov <kyrylo.tkachov@arm.com> * config/arm/arm.md (arm_<simd32_op>): New define_insn. diff --git a/gcc/config/aarch64/aarch64.opt b/gcc/config/aarch64/aarch64.opt index 865b6a6..fc43428 100644 --- a/gcc/config/aarch64/aarch64.opt +++ b/gcc/config/aarch64/aarch64.opt @@ -119,15 +119,15 @@ EnumValue Enum(aarch64_tls_size) String(48) Value(48) march= -Target RejectNegative ToLower Joined Var(aarch64_arch_string) +Target RejectNegative Negative(march=) ToLower Joined Var(aarch64_arch_string) Use features of architecture ARCH. mcpu= -Target RejectNegative ToLower Joined Var(aarch64_cpu_string) +Target RejectNegative Negative(mcpu=) ToLower Joined Var(aarch64_cpu_string) Use features of and optimize for CPU. mtune= -Target RejectNegative ToLower Joined Var(aarch64_tune_string) +Target RejectNegative Negative(mtune=) ToLower Joined Var(aarch64_tune_string) Optimize for CPU. mabi= diff --git a/gcc/config/arm/arm.opt b/gcc/config/arm/arm.opt index 452f0cf..76c10ab 100644 --- a/gcc/config/arm/arm.opt +++ b/gcc/config/arm/arm.opt @@ -82,7 +82,7 @@ mapcs-stack-check Target Report Mask(APCS_STACK) Undocumented march= -Target RejectNegative ToLower Joined Var(arm_arch_string) +Target RejectNegative Negative(march=) ToLower Joined Var(arm_arch_string) Specify the name of the target architecture. ; Other arm_arch values are loaded from arm-tables.opt @@ -107,7 +107,7 @@ Target Report Mask(CALLER_INTERWORKING) Thumb: Assume function pointers may go to non-Thumb aware code. mcpu= -Target RejectNegative ToLower Joined Var(arm_cpu_string) +Target RejectNegative Negative(mcpu=) ToLower Joined Var(arm_cpu_string) Specify the name of the target CPU. mfloat-abi= @@ -232,7 +232,7 @@ Target Report Mask(TPCS_LEAF_FRAME) Thumb: Generate (leaf) stack frames even if not needed. mtune= -Target RejectNegative ToLower Joined Var(arm_tune_string) +Target RejectNegative Negative(mtune=) ToLower Joined Var(arm_tune_string) Tune code for the given processor. mprint-tune-info |