5a68c4b287
This is a simpler rule, broadly in line with previous Darwin (which chose between "soft" and "softfp") but probably safer. In practice the only real reason for "softfp" is ABI compatibility, not usually an issue on limited chips like these, so anyone who wanted hard-float should already be saying so. That's my story and I'm sticking to it. rdar://problem/15887493 llvm-svn: 199896
61 lines
2.3 KiB
C
61 lines
2.3 KiB
C
// RUN: %clang -target x86_64-apple-darwin -arch armv6m -resource-dir=%S/Inputs/resource_dir %s -### 2> %t
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// RUN: %clang -target x86_64-apple-darwin -arch armv7em -resource-dir=%S/Inputs/resource_dir %s -### 2>> %t
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// RUN: %clang -target x86_64-apple-darwin -arch armv7em -mhard-float -resource-dir=%S/Inputs/resource_dir %s -### 2>> %t
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// RUN: %clang -target x86_64-apple-darwin -arch armv7m -fPIC -resource-dir=%S/Inputs/resource_dir %s -### 2>> %t
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// RUN: %clang -target x86_64-apple-darwin -arch armv7em -fPIC -mfloat-abi=hard -resource-dir=%S/Inputs/resource_dir %s -### 2>> %t
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// RUN: %clang -target x86_64-apple-darwin -arch armv7em -fPIC -mfloat-abi=softfp -resource-dir=%S/Inputs/resource_dir %s -### 2>> %t
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// RUN: %clang -target x86_64-apple-none-macho -arch armv7 -mhard-float -resource-dir=%S/Inputs/resource_dir %s -### 2>> %t
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// RUN: %clang -target x86_64-apple-none-macho -arch armv7 -msoft-float -fPIC -resource-dir=%S/Inputs/resource_dir %s -### 2>> %t
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// RUN: FileCheck %s < %t
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// ARMv6m has no float
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// CHECK-LABEL: Target:
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// CHECK-NOT: warning: unknown platform
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// CHECK: "-mfloat-abi" "soft"
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// CHECK: libclang_rt.soft_static.a
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// ARMv7em does, but defaults to soft
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// CHECK-LABEL: Target:
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// CHECK-NOT: warning: unknown platform
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// CHECK: "-mfloat-abi" "soft"
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// CHECK: libclang_rt.soft_static.a
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// Which can be overridden
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// CHECK-LABEL: Target:
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// CHECK-NOT: warning: unknown platform
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// CHECK: "-mfloat-abi" "hard"
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// CHECK: libclang_rt.hard_static.a
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// ARMv7m has no float either
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// CHECK-LABEL: Target:
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// CHECK-NOT: warning: unknown platform
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// CHECK: "-mfloat-abi" "soft"
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// CHECK: libclang_rt.soft_pic.a
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// But it can be enabled on ARMv7em
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// CHECK-LABEL: Target:
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// CHECK-NOT: warning: unknown platform
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// CHECK: "-mfloat-abi" "hard"
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// CHECK: libclang_rt.hard_pic.a
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// "softfp" must link against a soft-float library since that's what the
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// callers we're compiling will expect.
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// CHECK-LABEL: Target:
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// CHECK-NOT: warning: unknown platform
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// CHECK: "-mfloat-abi" "soft"
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// CHECK: libclang_rt.soft_pic.a
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// -arch "armv7" (== embedded v7a) can be used in a couple of variants:
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// CHECK-LABEL: Target:
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// CHECK-NOT: warning: unknown platform
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// CHECK: "-mfloat-abi" "hard"
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// CHECK: libclang_rt.hard_static.a
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// CHECK-LABEL: Target:
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// CHECK-NOT: warning: unknown platform
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// CHECK: "-mfloat-abi" "soft"
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// CHECK: libclang_rt.soft_pic.a
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