derek.holloway
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39 lines
1.8 KiB
C
39 lines
1.8 KiB
C
/// This test checks that the warning includes the location in the C source
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/// file that contains the inline asm. Although this warning is emitted in llvm
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/// it cannot be tested from IR as it does not have that location information at
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/// that stage.
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// REQUIRES: powerpc-registered-target
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// RUN: %clang --target=powerpc-unknown-unknown -mcpu=pwr7 \
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// RUN: -c %s -o /dev/null 2>&1 | FileCheck %s
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// RUN: %clang --target=powerpc64-unknown-unknown -mcpu=pwr7 \
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// RUN: -c %s -o /dev/null 2>&1 | FileCheck %s
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void test_r1_clobber() {
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__asm__("nop":::"r1");
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}
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// CHECK: ppc-inline-asm-clobber-warning.c:14:11: warning: inline asm clobber list contains reserved registers: R1 [-Winline-asm]
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// CHECK-NEXT: __asm__("nop":::"r1");
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// CHECK-NEXT: ^
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// CHECK-NEXT: ppc-inline-asm-clobber-warning.c:14:11: 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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void test_1_clobber() {
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__asm__("nop":::"1");
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}
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// CHECK: ppc-inline-asm-clobber-warning.c:23:11: warning: inline asm clobber list contains reserved registers: R1 [-Winline-asm]
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// CHECK-NEXT: __asm__("nop":::"1");
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// CHECK-NEXT: ^
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// CHECK-NEXT: ppc-inline-asm-clobber-warning.c:23:11: 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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void test_sp_clobber() {
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__asm__("nop":::"sp");
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}
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// CHECK: ppc-inline-asm-clobber-warning.c:32:11: warning: inline asm clobber list contains reserved registers: R1 [-Winline-asm]
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// CHECK-NEXT: __asm__("nop":::"sp");
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// CHECK-NEXT: ^
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// CHECK-NEXT: ppc-inline-asm-clobber-warning.c:32:11: 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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