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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 `{{.*}} `.
66 lines
4.4 KiB
C
66 lines
4.4 KiB
C
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm %s -o - | FileCheck %s
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// Validate that volatile _Complex loads and stores are generated
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// properly, including their alignment (even when overaligned).
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//
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// This test assumes that floats are 32-bit aligned and doubles are
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// 64-bit aligned, and uses x86-64 as a target that should have this
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// property.
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volatile _Complex float cf;
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volatile _Complex double cd;
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volatile _Complex float cf32 __attribute__((aligned(32)));
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volatile _Complex double cd32 __attribute__((aligned(32)));
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// CHECK-LABEL: define{{.*}} void @test_cf()
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void test_cf() {
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// CHECK: load volatile float, float* getelementptr inbounds ({ float, float }, { float, float }* @cf, i32 0, i32 0), align 4
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// CHECK-NEXT: load volatile float, float* getelementptr inbounds ({ float, float }, { float, float }* @cf, i32 0, i32 1), align 4
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(void)(cf);
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// CHECK-NEXT: [[R:%.*]] = load volatile float, float* getelementptr inbounds ({ float, float }, { float, float }* @cf, i32 0, i32 0), align 4
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// CHECK-NEXT: [[I:%.*]] = load volatile float, float* getelementptr inbounds ({ float, float }, { float, float }* @cf, i32 0, i32 1), align 4
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// CHECK-NEXT: store volatile float [[R]], float* getelementptr inbounds ({ float, float }, { float, float }* @cf, i32 0, i32 0), align 4
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// CHECK-NEXT: store volatile float [[I]], float* getelementptr inbounds ({ float, float }, { float, float }* @cf, i32 0, i32 1), align 4
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(void)(cf=cf);
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// CHECK-NEXT: ret void
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}
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// CHECK-LABEL: define{{.*}} void @test_cd()
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void test_cd() {
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// CHECK: load volatile double, double* getelementptr inbounds ({ double, double }, { double, double }* @cd, i32 0, i32 0), align 8
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// CHECK-NEXT: load volatile double, double* getelementptr inbounds ({ double, double }, { double, double }* @cd, i32 0, i32 1), align 8
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(void)(cd);
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// CHECK-NEXT: [[R:%.*]] = load volatile double, double* getelementptr inbounds ({ double, double }, { double, double }* @cd, i32 0, i32 0), align 8
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// CHECK-NEXT: [[I:%.*]] = load volatile double, double* getelementptr inbounds ({ double, double }, { double, double }* @cd, i32 0, i32 1), align 8
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// CHECK-NEXT: store volatile double [[R]], double* getelementptr inbounds ({ double, double }, { double, double }* @cd, i32 0, i32 0), align 8
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// CHECK-NEXT: store volatile double [[I]], double* getelementptr inbounds ({ double, double }, { double, double }* @cd, i32 0, i32 1), align 8
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(void)(cd=cd);
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// CHECK-NEXT: ret void
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}
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// CHECK-LABEL: define{{.*}} void @test_cf32()
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void test_cf32() {
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// CHECK: load volatile float, float* getelementptr inbounds ({ float, float }, { float, float }* @cf32, i32 0, i32 0), align 32
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// CHECK-NEXT: load volatile float, float* getelementptr inbounds ({ float, float }, { float, float }* @cf32, i32 0, i32 1), align 4
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(void)(cf32);
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// CHECK-NEXT: [[R:%.*]] = load volatile float, float* getelementptr inbounds ({ float, float }, { float, float }* @cf32, i32 0, i32 0), align 32
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// CHECK-NEXT: [[I:%.*]] = load volatile float, float* getelementptr inbounds ({ float, float }, { float, float }* @cf32, i32 0, i32 1), align 4
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// CHECK-NEXT: store volatile float [[R]], float* getelementptr inbounds ({ float, float }, { float, float }* @cf32, i32 0, i32 0), align 32
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// CHECK-NEXT: store volatile float [[I]], float* getelementptr inbounds ({ float, float }, { float, float }* @cf32, i32 0, i32 1), align 4
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(void)(cf32=cf32);
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// CHECK-NEXT: ret void
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}
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// CHECK-LABEL: define{{.*}} void @test_cd32()
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void test_cd32() {
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// CHECK: load volatile double, double* getelementptr inbounds ({ double, double }, { double, double }* @cd32, i32 0, i32 0), align 32
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// CHECK-NEXT: load volatile double, double* getelementptr inbounds ({ double, double }, { double, double }* @cd32, i32 0, i32 1), align 8
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(void)(cd32);
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// CHECK-NEXT: [[R:%.*]] = load volatile double, double* getelementptr inbounds ({ double, double }, { double, double }* @cd32, i32 0, i32 0), align 32
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// CHECK-NEXT: [[I:%.*]] = load volatile double, double* getelementptr inbounds ({ double, double }, { double, double }* @cd32, i32 0, i32 1), align 8
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// CHECK-NEXT: store volatile double [[R]], double* getelementptr inbounds ({ double, double }, { double, double }* @cd32, i32 0, i32 0), align 32
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// CHECK-NEXT: store volatile double [[I]], double* getelementptr inbounds ({ double, double }, { double, double }* @cd32, i32 0, i32 1), align 8
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(void)(cd32=cd32);
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// CHECK-NEXT: ret void
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}
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