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 `{{.*}} `.
38 lines
953 B
C
38 lines
953 B
C
// RUN: %clang_cc1 -triple i386-pc-elfiamcu -emit-llvm -o - %s | FileCheck %s
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// CHECK: target datalayout = "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-i64:32-f64:32-f128:32-n8:16:32-a:0:32-S32"
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// CHECK: target triple = "i386-pc-elfiamcu"
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void food(double *d);
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void fooll(long long *ll);
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void fooull(unsigned long long *ull);
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void foold(long double *ld);
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// CHECK-LABEL: define{{.*}} void @testdouble()
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// CHECK: alloca double, align 4
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void testdouble() {
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double d = 2.0;
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food(&d);
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}
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// CHECK-LABEL: define{{.*}} void @testlonglong()
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// CHECK: alloca i64, align 4
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void testlonglong() {
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long long ll = 2;
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fooll(&ll);
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}
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// CHECK-LABEL: define{{.*}} void @testunsignedlonglong()
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// CHECK: alloca i64, align 4
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void testunsignedlonglong() {
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unsigned long long ull = 2;
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fooull(&ull);
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}
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// CHECK-LABEL: define{{.*}} void @testlongdouble()
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// CHECK: alloca double, align 4
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void testlongdouble() {
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long double ld = 2.0;
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foold(&ld);
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}
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