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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 `{{.*}} `.
14 lines
554 B
C
14 lines
554 B
C
// RUN: %clang_cc1 %s -emit-llvm -o - -triple=avr-unknown-unknown -mdouble=64 | \
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// RUN: FileCheck --check-prefix=AVR-FP64 %s
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// RUN: %clang_cc1 %s -emit-llvm -o - -triple=avr-unknown-unknown -mdouble=32 | \
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// RUN: FileCheck --check-prefix=AVR-FP32 %s
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double x = 0;
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int size = sizeof(x);
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// FIXME: the double should have an alignment of 1 on AVR, not 4 or 8.
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// AVR-FP64: @x ={{.*}} global double {{.*}}, align 8
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// AVR-FP64: @size ={{.*}} global i16 8
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// AVR-FP32: @x ={{.*}} global float {{.*}}, align 4
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// AVR-FP32: @size ={{.*}} global i16 4
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