c4fc3a2ba5
If the ASM statement is dereferencing an incomplete pointer type, issue an error instead of crashing. <rdar://problem/12700799> llvm-svn: 177915
25 lines
755 B
C
25 lines
755 B
C
// RUN: %clang_cc1 -triple i386-apple-darwin9 -verify %s
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// <rdar://problem/12415959>
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typedef unsigned int u_int32_t;
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typedef u_int32_t uint32_t;
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typedef unsigned long long u_int64_t;
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typedef u_int64_t uint64_t;
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int func1() {
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// Error out if size is > 32-bits.
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uint32_t msr = 0x8b;
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uint64_t val = 0;
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__asm__ volatile("wrmsr"
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:
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: "c" (msr),
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"a" ((val & 0xFFFFFFFFUL)), // expected-error {{invalid input size for constraint 'a'}}
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"d" (((val >> 32) & 0xFFFFFFFFUL)));
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// Don't error out if the size of the destination is <= 32 bits.
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unsigned char data;
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unsigned int port;
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__asm__ volatile("outb %0, %w1" : : "a" (data), "Nd" (port)); // No error expected.
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}
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