forked from OSchip/llvm-project
34 lines
1.8 KiB
C
34 lines
1.8 KiB
C
// RUN: %clang -target i386-unknown-linux -fstack-clash-protection -### %s 2>&1 | FileCheck %s -check-prefix=SCP-i386
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// RUN: %clang -target i386-unknown-linux -fnostack-clash-protection -fstack-clash-protection -### %s 2>&1 | FileCheck %s -check-prefix=SCP-i386
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// RUN: %clang -target i386-unknown-linux -fstack-clash-protection -fnostack-clash-protection -### %s 2>&1 | FileCheck %s -check-prefix=SCP-i386-NO
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// SCP-i386: "-fstack-clash-protection"
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// SCP-i386-NO-NOT: "-fstack-clash-protection"
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// RUN: %clang -target x86_64-scei-linux -fstack-clash-protection -### %s 2>&1 | FileCheck %s -check-prefix=SCP-x86
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// SCP-x86: "-fstack-clash-protection"
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// RUN: %clang -target armv7k-apple-linux -fstack-clash-protection -### %s 2>&1 | FileCheck %s -check-prefix=SCP-armv7
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// SCP-armv7-NOT: "-fstack-clash-protection"
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// SCP-armv7: argument unused during compilation: '-fstack-clash-protection'
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// RUN: %clang -target x86_64-unknown-linux -fstack-clash-protection -S -emit-llvm -o %t.ll %s 2>&1 | FileCheck %s -check-prefix=SCP-warn
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// SCP-warn: warning: Unable to protect inline asm that clobbers stack pointer against stack clash
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// RUN: %clang -target x86_64-pc-unknown-linux -fstack-clash-protection -S -emit-llvm -o- %s | FileCheck %s -check-prefix=SCP-ll-linux64
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// SCP-ll-linux64: attributes {{.*}} "probe-stack"="inline-asm"
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// RUN: %clang -target x86_64-pc-windows-msvc -fstack-clash-protection -S -emit-llvm -o- %s 2>&1 | FileCheck %s -check-prefix=SCP-ll-win64
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// SCP-ll-win64-NOT: attributes {{.*}} "probe-stack"="inline-asm"
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// SCP-ll-win64: argument unused during compilation: '-fstack-clash-protection'
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int foo(int c) {
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int r;
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__asm__("sub %0, %%rsp"
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:
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: "rm"(c)
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: "rsp");
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__asm__("mov %%rsp, %0"
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: "=rm"(r)::);
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return r;
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}
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