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 `{{.*}} `.
72 lines
2.9 KiB
C
72 lines
2.9 KiB
C
// RUN: %clang_cc1 -triple mipsel-unknown-linux -O3 -S -o - -emit-llvm %s | FileCheck %s -check-prefix=O32
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// RUN: %clang_cc1 -triple mips64el-unknown-linux -O3 -S -target-abi n64 -o - -emit-llvm %s | FileCheck %s -check-prefix=N64
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// RUN: %clang_cc1 -triple mipsel-unknown-linux -target-feature "+fp64" -O3 -S -o - -emit-llvm %s | FileCheck %s -check-prefix=O32
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typedef struct {
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double d;
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long double ld;
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} S0;
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// Insert padding to ensure arguments of type S0 are aligned to 16-byte boundaries.
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// N64-LABEL: define{{.*}} void @foo1(i32 signext %a0, i64 %0, double inreg %a1.coerce0, i64 inreg %a1.coerce1, i64 inreg %a1.coerce2, i64 inreg %a1.coerce3, double inreg %a2.coerce0, i64 inreg %a2.coerce1, i64 inreg %a2.coerce2, i64 inreg %a2.coerce3, i32 signext %b, i64 %1, double inreg %a3.coerce0, i64 inreg %a3.coerce1, i64 inreg %a3.coerce2, i64 inreg %a3.coerce3)
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// N64: tail call void @foo2(i32 signext 1, i32 signext 2, i32 signext %a0, i64 undef, double inreg %a1.coerce0, i64 inreg %a1.coerce1, i64 inreg %a1.coerce2, i64 inreg %a1.coerce3, double inreg %a2.coerce0, i64 inreg %a2.coerce1, i64 inreg %a2.coerce2, i64 inreg %a2.coerce3, i32 signext 3, i64 undef, double inreg %a3.coerce0, i64 inreg %a3.coerce1, i64 inreg %a3.coerce2, i64 inreg %a3.coerce3)
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// N64: declare void @foo2(i32 signext, i32 signext, i32 signext, i64, double inreg, i64 inreg, i64 inreg, i64 inreg, double inreg, i64 inreg, i64 inreg, i64 inreg, i32 signext, i64, double inreg, i64 inreg, i64 inreg, i64 inreg)
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extern void foo2(int, int, int, S0, S0, int, S0);
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void foo1(int a0, S0 a1, S0 a2, int b, S0 a3) {
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foo2(1, 2, a0, a1, a2, 3, a3);
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}
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// Insert padding before long double argument.
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//
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// N64-LABEL: define{{.*}} void @foo3(i32 signext %a0, i64 %0, fp128 %a1)
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// N64: tail call void @foo4(i32 signext 1, i32 signext 2, i32 signext %a0, i64 undef, fp128 %a1)
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// N64: declare void @foo4(i32 signext, i32 signext, i32 signext, i64, fp128)
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extern void foo4(int, int, int, long double);
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void foo3(int a0, long double a1) {
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foo4(1, 2, a0, a1);
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}
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// Insert padding after hidden argument.
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//
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// N64-LABEL: define{{.*}} void @foo5(%struct.S0* noalias sret(%struct.S0) align 16 %agg.result, i64 %0, fp128 %a0)
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// N64: call void @foo6(%struct.S0* sret(%struct.S0) align 16 %agg.result, i32 signext 1, i32 signext 2, i64 undef, fp128 %a0)
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// N64: declare void @foo6(%struct.S0* sret(%struct.S0) align 16, i32 signext, i32 signext, i64, fp128)
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extern S0 foo6(int, int, long double);
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S0 foo5(long double a0) {
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return foo6(1, 2, a0);
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}
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// Do not insert padding if ABI is O32.
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//
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// O32-LABEL: define{{.*}} void @foo7(float %a0, double %a1)
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// O32: declare void @foo8(float, double)
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extern void foo8(float, double);
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void foo7(float a0, double a1) {
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foo8(a0 + 1.0f, a1 + 2.0);
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}
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// O32-LABEL: define{{.*}} void @foo9()
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// O32: declare void @foo10(i32 signext, i32
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typedef struct __attribute__((aligned(16))) {
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int a;
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} S16;
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S16 s16;
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void foo10(int, S16);
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void foo9(void) {
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foo10(1, s16);
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}
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