35 lines
1.8 KiB
C
35 lines
1.8 KiB
C
// REQUIRES: x86-registered-target
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// Play around with backend reporting:
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// _REGULAR_: Regular behavior, no warning switch enabled.
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// _PROMOTE_: Promote warning to error.
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// _IGNORE_: Drop backend warning.
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//
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// RUN: not %clang_cc1 %s -mllvm -warn-stack-size=0 -no-integrated-as -S -o - -triple=i386-apple-darwin 2> %t.err
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// RUN: FileCheck < %t.err %s --check-prefix=REGULAR --check-prefix=ASM
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// RUN: not %clang_cc1 %s -mllvm -warn-stack-size=0 -no-integrated-as -S -o - -triple=i386-apple-darwin -Werror=frame-larger-than 2> %t.err
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// RUN: FileCheck < %t.err %s --check-prefix=PROMOTE --check-prefix=ASM
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// RUN: not %clang_cc1 %s -mllvm -warn-stack-size=0 -no-integrated-as -S -o - -triple=i386-apple-darwin -Wno-frame-larger-than 2> %t.err
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// RUN: FileCheck < %t.err %s --check-prefix=IGNORE --check-prefix=ASM
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//
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// Currently the stack size reporting cannot be checked with -verify because
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// no source location is attached to the diagnostic. Therefore do not emit
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// them for the -verify test for now.
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// RUN: %clang_cc1 %s -S -o - -triple=i386-apple-darwin -verify -no-integrated-as
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extern void doIt(char *);
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// REGULAR: warning: stack size exceeded ({{[0-9]+}}) in stackSizeWarning
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// PROMOTE: error: stack size exceeded ({{[0-9]+}}) in stackSizeWarning
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// IGNORE-NOT: stack size exceeded ({{[0-9]+}}) in stackSizeWarning
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void stackSizeWarning() {
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char buffer[80];
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doIt(buffer);
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}
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// ASM: inline assembly requires more registers than available
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void inlineAsmError(int x0, int x1, int x2, int x3, int x4,
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int x5, int x6, int x7, int x8, int x9) {
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__asm__("hello world": : "r" (x0),"r" (x1),"r" (x2),"r" (x3), // expected-error + {{inline assembly requires more registers than available}}
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"r" (x4),"r" (x5),"r" (x6),"r" (x7),"r" (x8),"r" (x9));
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}
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