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2db090a2eb
Since 5de2d189e6ad466a1f0616195e8c524a4eb3cbc0 this particular warning hasn't had the location of the source file containing the inline assembly. Fix this by reporting via LLVMContext. Which means that we no longer have the "instantiated into assembly here" lines but they were going to point to the start of the inline asm string anyway. This message is already tested via IR in llvm. However we won't have the required location info there so I've added a C file test in clang to cover it. (though strictly, this is testing llvm code) Reviewed By: ychen Differential Revision: https://reviews.llvm.org/D102244
22 lines
985 B
C
22 lines
985 B
C
/// This test checks that the warning includes the location in the C source
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/// file that contains the inline asm. Instead of saying <inline asm> for both.
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/// Although this warning is emitted in llvm it cannot be tested from IR as
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/// it does not have that location information at that stage.
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// RUN: %clang -target arm-arm-none-eabi -march=armv7-m -c %s -o /dev/null \
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// RUN: 2>&1 | FileCheck %s
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// REQUIRES: arm-registered-target
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void bar(void) {
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__asm__ __volatile__("nop"
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:
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:
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: "sp");
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}
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// CHECK: inline-asm-clobber-warning.c:12:24: warning: inline asm clobber list contains reserved registers: SP [-Winline-asm]
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// CHECK-NEXT: __asm__ __volatile__("nop"
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// CHECK-NEXT: ^
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// CHECK-NEXT: inline-asm-clobber-warning.c:12:24: note: Reserved registers on the clobber list may not be preserved across the asm statement, and clobbering them may lead to undefined behaviour.
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