From 6fdbe41963a7aecad80f27e9805c7e18cbd4ab48 Mon Sep 17 00:00:00 2001 From: Matt Turner Date: Thu, 26 Sep 2019 10:52:42 +0000 Subject: [PATCH] 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 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 --- gcc/ChangeLog | 8 ++++++++ gcc/config/aarch64/aarch64.opt | 6 +++--- 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 + + 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 * config/arm/arm.md (arm_): 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 -- 2.7.4