31 lines
1015 B
C
31 lines
1015 B
C
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm -o - %s \
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// RUN: -fsanitize=signed-integer-overflow \
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// RUN: | FileCheck %s
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// Verify we emit constants for "immediate" inline assembly arguments.
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// Emitting a scalar expression can make the immediate be generated as
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// overflow intrinsics, if the overflow sanitizer is enabled.
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// Check both 'i' and 'I':
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// - 'i' accepts symbolic constants.
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// - 'I' doesn't, and is really an immediate-required constraint.
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// See also PR23517.
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// CHECK-LABEL: @test_inlineasm_i
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// CHECK: call void asm sideeffect "int $0", "i{{.*}}"(i32 2)
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void test_inlineasm_i() {
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__asm__ __volatile__("int %0" :: "i"(1 + 1));
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}
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// CHECK-LABEL: @test_inlineasm_I
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// CHECK: call void asm sideeffect "int $0", "I{{.*}}"(i32 2)
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// CHECK: call void asm sideeffect "int $0", "I{{.*}}"(i32 3)
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void test_inlineasm_I() {
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__asm__ __volatile__("int %0" :: "I"(1 + 1));
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// Also check a C non-ICE.
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static const int N = 1;
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__asm__ __volatile__("int %0" :: "I"(N + 2));
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}
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