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 `{{.*}} `.
44 lines
1.0 KiB
C
44 lines
1.0 KiB
C
// RUN: %clang_cc1 -triple nvptx-unknown-unknown -S -o - %s -emit-llvm | FileCheck %s
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// RUN: %clang_cc1 -triple nvptx64-unknown-unknown -S -o - %s -emit-llvm | FileCheck %s
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typedef struct float4_s {
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float x, y, z, w;
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} float4_t;
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float4_t my_function(void) {
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// CHECK-LABEL: define{{.*}} %struct.float4_s @my_function
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float4_t t;
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return t;
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};
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float bar(void) {
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float4_t ret;
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// CHECK-LABEL: @bar
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// CHECK: call %struct.float4_s @my_function
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ret = my_function();
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return ret.x;
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}
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void foo(float4_t x) {
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// CHECK-LABEL: @foo
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// CHECK: %struct.float4_s* byval(%struct.float4_s) align 4 %x
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}
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void fooN(float4_t x, float4_t y, float4_t z) {
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// CHECK-LABEL: @fooN
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// CHECK: %struct.float4_s* byval(%struct.float4_s) align 4 %x
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// CHECK: %struct.float4_s* byval(%struct.float4_s) align 4 %y
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// CHECK: %struct.float4_s* byval(%struct.float4_s) align 4 %z
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}
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typedef struct nested_s {
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unsigned long long x;
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float z[64];
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float4_t t;
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} nested_t;
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void baz(nested_t x) {
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// CHECK-LABEL: @baz
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// CHECK: %struct.nested_s* byval(%struct.nested_s) align 8 %x)
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}
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