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-rw-r--r--test/CodeGen/x86_64-longdouble.c135
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diff --git a/test/CodeGen/x86_64-longdouble.c b/test/CodeGen/x86_64-longdouble.c
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+// RUN: %clang_cc1 -triple x86_64-linux-android -emit-llvm -O -o - %s \
+// RUN: | FileCheck %s --check-prefix=ANDROID --check-prefix=CHECK
+// RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -O -o - %s \
+// RUN: | FileCheck %s --check-prefix=GNU --check-prefix=CHECK
+// RUN: %clang_cc1 -triple x86_64 -emit-llvm -O -o - %s \
+// RUN: | FileCheck %s --check-prefix=GNU --check-prefix=CHECK
+// NaCl is an example of a target for which long double is the same as double.
+// RUN: %clang_cc1 -triple x86_64-nacl -emit-llvm -O -o - %s \
+// RUN: | FileCheck %s --check-prefix=NACL --check-prefix=CHECK
+
+// Android uses fp128 for long double but other x86_64 targets use x86_fp80.
+
+long double dataLD = 1.0L;
+// ANDROID: @dataLD = global fp128 0xL00000000000000003FFF000000000000, align 16
+// GNU: @dataLD = global x86_fp80 0xK3FFF8000000000000000, align 16
+
+long double _Complex dataLDC = {1.0L, 1.0L};
+// ANDROID: @dataLDC = global { fp128, fp128 } { fp128 0xL00000000000000003FFF000000000000, fp128 0xL00000000000000003FFF000000000000 }, align 16
+// GNU: @dataLDC = global { x86_fp80, x86_fp80 } { x86_fp80 0xK3FFF8000000000000000, x86_fp80 0xK3FFF8000000000000000 }, align 16
+
+long double TestLD(long double x) {
+ return x * x;
+// ANDROID: define fp128 @TestLD(fp128 %x)
+// GNU: define x86_fp80 @TestLD(x86_fp80 %x)
+// NACL: define double @TestLD(double %x)
+}
+
+long double _Complex TestLDC(long double _Complex x) {
+ return x * x;
+// ANDROID: define void @TestLDC({ fp128, fp128 }* {{.*}}, { fp128, fp128 }* {{.*}} %x)
+// GNU: define { x86_fp80, x86_fp80 } @TestLDC({ x86_fp80, x86_fp80 }* {{.*}} %x)
+// NACL: define { double, double } @TestLDC(double %x{{.*}}, double %x{{.*}})
+}
+
+typedef __builtin_va_list va_list;
+
+int TestGetVarInt(va_list ap) {
+ return __builtin_va_arg(ap, int);
+// Since int can be passed in memory or register there are two branches.
+// CHECK: define i32 @TestGetVarInt(
+// CHECK: br label
+// CHECK: br label
+// CHECK: = phi
+// CHECK: ret i32
+}
+
+double TestGetVarDouble(va_list ap) {
+ return __builtin_va_arg(ap, double);
+// Since double can be passed in memory or register there are two branches.
+// CHECK: define double @TestGetVarDouble(
+// CHECK: br label
+// CHECK: br label
+// CHECK: = phi
+// CHECK: ret double
+}
+
+long double TestGetVarLD(va_list ap) {
+ return __builtin_va_arg(ap, long double);
+// fp128 and double can be passed in memory or in register, but x86_fp80 is in
+// memory.
+// ANDROID: define fp128 @TestGetVarLD(
+// GNU: define x86_fp80 @TestGetVarLD(
+// NACL: define double @TestGetVarLD(
+// ANDROID: br label
+// ANDROID: br label
+// NACL: br
+// ANDROID: = phi
+// GNU-NOT: br
+// GNU-NOT: = phi
+// NACL: = phi
+// ANDROID: ret fp128
+// GNU: ret x86_fp80
+}
+
+long double _Complex TestGetVarLDC(va_list ap) {
+ return __builtin_va_arg(ap, long double _Complex);
+// Pair of fp128 or x86_fp80 are passed as struct in memory.
+// ANDROID: define void @TestGetVarLDC({ fp128, fp128 }* {{.*}}, %struct.__va_list_tag*
+// GNU: define { x86_fp80, x86_fp80 } @TestGetVarLDC(
+// Pair of double can go in SSE registers or memory
+// NACL: define { double, double } @TestGetVarLDC(
+// ANDROID-NOT: br
+// GNU-NOT: br
+// NACL: br
+// ANDROID-NOT: phi
+// GNU-NOT: phi
+// NACL: phi
+// ANDROID: ret void
+// GNU: ret { x86_fp80, x86_fp80 }
+// NACL: ret { double, double }
+}
+
+void TestVarArg(const char *s, ...);
+
+void TestPassVarInt(int x) {
+ TestVarArg("A", x);
+// CHECK: define void @TestPassVarInt(i32 %x)
+// CHECK: call {{.*}} @TestVarArg(i8* {{.*}}, i32 %x)
+}
+
+void TestPassVarFloat(float x) {
+ TestVarArg("A", x);
+// CHECK: define void @TestPassVarFloat(float %x)
+// CHECK: call {{.*}} @TestVarArg(i8* {{.*}}, double %
+}
+
+void TestPassVarDouble(double x) {
+ TestVarArg("A", x);
+// CHECK: define void @TestPassVarDouble(double %x)
+// CHECK: call {{.*}} @TestVarArg(i8* {{.*}}, double %x
+}
+
+void TestPassVarLD(long double x) {
+ TestVarArg("A", x);
+// ANDROID: define void @TestPassVarLD(fp128 %x)
+// ANDROID: call {{.*}} @TestVarArg(i8* {{.*}}, fp128 %x
+// GNU: define void @TestPassVarLD(x86_fp80 %x)
+// GNU: call {{.*}} @TestVarArg(i8* {{.*}}, x86_fp80 %x
+// NACL: define void @TestPassVarLD(double %x)
+// NACL: call {{.*}} @TestVarArg(i8* {{.*}}, double %x
+}
+
+void TestPassVarLDC(long double _Complex x) {
+ TestVarArg("A", x);
+// ANDROID: define void @TestPassVarLDC({ fp128, fp128 }* {{.*}} %x)
+// ANDROID: store fp128 %{{.*}}, fp128* %
+// ANDROID-NEXT: store fp128 %{{.*}}, fp128* %
+// ANDROID-NEXT: call {{.*}} @TestVarArg(i8* {{.*}}, { fp128, fp128 }* {{.*}} %
+// GNU: define void @TestPassVarLDC({ x86_fp80, x86_fp80 }* {{.*}} %x)
+// GNU: store x86_fp80 %{{.*}}, x86_fp80* %
+// GNU-NEXT: store x86_fp80 %{{.*}}, x86_fp80* %
+// GNU-NEXT: call {{.*}} @TestVarArg(i8* {{.*}}, { x86_fp80, x86_fp80 }* {{.*}} %
+// NACL: define void @TestPassVarLDC(double %x{{.*}}, double %x{{.*}})
+// NACL: call {{.*}} @TestVarArg(i8* {{.*}}, double %x{{.*}}, double %x{{.*}})
+}