55a51e1c79
An empty string literal in an asm label does not make a whole lot of sense. GCC does not diagnose such a construct, but it also generates code that cannot be assembled by gas should two symbols have an empty asm label within the same TU. This does not affect an asm statement with an empty string literal, which is still a useful construct.
20 lines
576 B
C
20 lines
576 B
C
// RUN: %clang_cc1 -triple=i686-pc-linux-gnu -emit-llvm %s -o - | FileCheck %s --check-prefix=LINUX
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// RUN: %clang_cc1 -triple=i686-apple-darwin9 -emit-llvm %s -o - | FileCheck %s --check-prefix=DARWIN
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char *strerror(int) asm("alias");
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int x __asm("foo");
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int *test(void) {
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static int y __asm("bar");
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strerror(-1);
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return &y;
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}
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// LINUX: @bar = internal global i32 0
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// LINUX: @foo = common global i32 0
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// LINUX: declare i8* @alias(i32)
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// DARWIN: @"\01bar" = internal global i32 0
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// DARWIN: @"\01foo" = common global i32 0
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// DARWIN: declare i8* @"\01alias"(i32)
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