fd739804e0
For a default visibility external linkage definition, dso_local is set for ELF
-fno-pic/-fpie and COFF and Mach-O. Since default clang -cc1 for ELF is similar
to -fpic ("PIC Level" is not set), this nuance causes unneeded binary format differences.
To make emitted IR similar, ELF -cc1 -fpic will default to -fno-semantic-interposition,
which sets dso_local for default visibility external linkage definitions.
To make this flip smooth and enable future (dso_local as definition default),
this patch replaces (function) `define ` with `define{{.*}} `,
(variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} `.
22 lines
637 B
C
22 lines
637 B
C
// RUN: %clang_cc1 -triple x86_64-linux-gnu -fsanitize=unsigned-integer-overflow -fsanitize-minimal-runtime %s -emit-llvm -o - | FileCheck %s
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unsigned long li, lj, lk;
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// CHECK-LABEL: define{{.*}} void @testlongadd()
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void testlongadd() {
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// CHECK: call void @__ubsan_handle_add_overflow_minimal_abort()
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li = lj + lk;
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}
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// CHECK-LABEL: define{{.*}} void @testlongsub()
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void testlongsub() {
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// CHECK: call void @__ubsan_handle_sub_overflow_minimal_abort()
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li = lj - lk;
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}
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// CHECK-LABEL: define{{.*}} void @testlongmul()
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void testlongmul() {
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// CHECK: call void @__ubsan_handle_mul_overflow_minimal_abort()
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li = lj * lk;
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}
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