1 files changed, 274 insertions, 0 deletions
diff --git a/test/CodeGen/ARM64/fp128.ll b/test/CodeGen/ARM64/fp128.ll
new file mode 100644
index 0000000000..21eb8930cb
--- /dev/null
+++ b/test/CodeGen/ARM64/fp128.ll
@@ -0,0 +1,274 @@
+; RUN: llc -mtriple=arm64-linux-gnu -verify-machineinstrs < %s | FileCheck %s
+
+@lhs = global fp128 zeroinitializer, align 16
+@rhs = global fp128 zeroinitializer, align 16
+
+define fp128 @test_add() {
+; CHECK-LABEL: test_add:
+
+  %lhs = load fp128* @lhs, align 16
+  %rhs = load fp128* @rhs, align 16
+; CHECK: ldr q0, [{{x[0-9]+}}, :lo12:lhs]
+; CHECK: ldr q1, [{{x[0-9]+}}, :lo12:rhs]
+
+  %val = fadd fp128 %lhs, %rhs
+; CHECK: bl __addtf3
+  ret fp128 %val
+}
+
+define fp128 @test_sub() {
+; CHECK-LABEL: test_sub:
+
+  %lhs = load fp128* @lhs, align 16
+  %rhs = load fp128* @rhs, align 16
+; CHECK: ldr q0, [{{x[0-9]+}}, :lo12:lhs]
+; CHECK: ldr q1, [{{x[0-9]+}}, :lo12:rhs]
+
+  %val = fsub fp128 %lhs, %rhs
+; CHECK: bl __subtf3
+  ret fp128 %val
+}
+
+define fp128 @test_mul() {
+; CHECK-LABEL: test_mul:
+
+  %lhs = load fp128* @lhs, align 16
+  %rhs = load fp128* @rhs, align 16
+; CHECK: ldr q0, [{{x[0-9]+}}, :lo12:lhs]
+; CHECK: ldr q1, [{{x[0-9]+}}, :lo12:rhs]
+
+  %val = fmul fp128 %lhs, %rhs
+; CHECK: bl __multf3
+  ret fp128 %val
+}
+
+define fp128 @test_div() {
+; CHECK-LABEL: test_div:
+
+  %lhs = load fp128* @lhs, align 16
+  %rhs = load fp128* @rhs, align 16
+; CHECK: ldr q0, [{{x[0-9]+}}, :lo12:lhs]
+; CHECK: ldr q1, [{{x[0-9]+}}, :lo12:rhs]
+
+  %val = fdiv fp128 %lhs, %rhs
+; CHECK: bl __divtf3
+  ret fp128 %val
+}
+
+@var32 = global i32 0
+@var64 = global i64 0
+
+define void @test_fptosi() {
+; CHECK-LABEL: test_fptosi:
+  %val = load fp128* @lhs, align 16
+
+  %val32 = fptosi fp128 %val to i32
+  store i32 %val32, i32* @var32
+; CHECK: bl __fixtfsi
+
+  %val64 = fptosi fp128 %val to i64
+  store i64 %val64, i64* @var64
+; CHECK: bl __fixtfdi
+
+  ret void
+}
+
+define void @test_fptoui() {
+; CHECK-LABEL: test_fptoui:
+  %val = load fp128* @lhs, align 16
+
+  %val32 = fptoui fp128 %val to i32
+  store i32 %val32, i32* @var32
+; CHECK: bl __fixunstfsi
+
+  %val64 = fptoui fp128 %val to i64
+  store i64 %val64, i64* @var64
+; CHECK: bl __fixunstfdi
+
+  ret void
+}
+
+define void @test_sitofp() {
+; CHECK-LABEL: test_sitofp:
+
+  %src32 = load i32* @var32
+  %val32 = sitofp i32 %src32 to fp128
+  store volatile fp128 %val32, fp128* @lhs
+; CHECK: bl __floatsitf
+
+  %src64 = load i64* @var64
+  %val64 = sitofp i64 %src64 to fp128
+  store volatile fp128 %val64, fp128* @lhs
+; CHECK: bl __floatditf
+
+  ret void
+}
+
+define void @test_uitofp() {
+; CHECK-LABEL: test_uitofp:
+
+  %src32 = load i32* @var32
+  %val32 = uitofp i32 %src32 to fp128
+  store volatile fp128 %val32, fp128* @lhs
+; CHECK: bl __floatunsitf
+
+  %src64 = load i64* @var64
+  %val64 = uitofp i64 %src64 to fp128
+  store volatile fp128 %val64, fp128* @lhs
+; CHECK: bl __floatunditf
+
+  ret void
+}
+
+define i1 @test_setcc1() {
+; CHECK-LABEL: test_setcc1:
+
+  %lhs = load fp128* @lhs, align 16
+  %rhs = load fp128* @rhs, align 16
+; CHECK: ldr q0, [{{x[0-9]+}}, :lo12:lhs]
+; CHECK: ldr q1, [{{x[0-9]+}}, :lo12:rhs]
+
+; Technically, everything after the call to __letf2 is redundant, but we'll let
+; LLVM have its fun for now.
+  %val = fcmp ole fp128 %lhs, %rhs
+; CHECK: bl __letf2
+; CHECK: cmp w0, #0
+; CHECK: csinc w0, wzr, wzr, gt
+
+  ret i1 %val
+; CHECK: ret
+}
+
+define i1 @test_setcc2() {
+; CHECK-LABEL: test_setcc2:
+
+  %lhs = load fp128* @lhs, align 16
+  %rhs = load fp128* @rhs, align 16
+; CHECK: ldr q0, [{{x[0-9]+}}, :lo12:lhs]
+; CHECK: ldr q1, [{{x[0-9]+}}, :lo12:rhs]
+
+  %val = fcmp ugt fp128 %lhs, %rhs
+; CHECK: bl      __gttf2
+; CHECK: cmp     w0, #0
+; CHECK: csinc   [[GT:w[0-9]+]], wzr, wzr, le
+
+; CHECK: bl      __unordtf2
+; CHECK: cmp     w0, #0
+; CHECK: csinc   [[UNORDERED:w[0-9]+]], wzr, wzr, eq
+; CHECK: orr     w0, [[UNORDERED]], [[GT]]
+
+  ret i1 %val
+; CHECK: ret
+}
+
+define i32 @test_br_cc() {
+; CHECK-LABEL: test_br_cc:
+
+  %lhs = load fp128* @lhs, align 16
+  %rhs = load fp128* @rhs, align 16
+; CHECK: ldr q0, [{{x[0-9]+}}, :lo12:lhs]
+; CHECK: ldr q1, [{{x[0-9]+}}, :lo12:rhs]
+
+  ; olt == !uge, which LLVM unfortunately "optimizes" this to.
+  %cond = fcmp olt fp128 %lhs, %rhs
+; CHECK: bl      __getf2
+; CHECK: cmp     w0, #0
+; CHECK: csinc   [[OGE:w[0-9]+]], wzr, wzr, lt
+
+; CHECK: bl      __unordtf2
+; CHECK: cmp     w0, #0
+; CHECK: csinc   [[UNORDERED:w[0-9]+]], wzr, wzr, eq
+
+; CHECK: orr     [[UGE:w[0-9]+]], [[UNORDERED]], [[OGE]]
+; CHECK: cbnz [[UGE]], [[RET29:.LBB[0-9]+_[0-9]+]]
+  br i1 %cond, label %iftrue, label %iffalse
+
+iftrue:
+  ret i32 42
+; CHECK-NEXT: BB#
+; CHECK-NEXT: movz w0, #42
+; CHECK-NEXT: b [[REALRET:.LBB[0-9]+_[0-9]+]]
+
+iffalse:
+  ret i32 29
+; CHECK: [[RET29]]:
+; CHECK-NEXT: movz w0, #29
+; CHECK-NEXT: [[REALRET]]:
+; CHECK: ret
+}
+
+define void @test_select(i1 %cond, fp128 %lhs, fp128 %rhs) {
+; CHECK-LABEL: test_select:
+
+  %val = select i1 %cond, fp128 %lhs, fp128 %rhs
+  store fp128 %val, fp128* @lhs, align 16
+; CHECK: and [[BIT:w[0-9]+]], w0, #0x1
+; CHECK: cmp [[BIT]], #0
+; CHECK-NEXT: b.eq [[IFFALSE:.LBB[0-9]+_[0-9]+]]
+; CHECK-NEXT: BB#
+; CHECK-NEXT: orr v[[VAL:[0-9]+]].16b, v0.16b, v0.16b
+; CHECK-NEXT: [[IFFALSE]]:
+; CHECK: str q[[VAL]], [{{x[0-9]+}}, :lo12:lhs]
+  ret void
+; CHECK: ret
+}
+
+@varfloat = global float 0.0, align 4
+@vardouble = global double 0.0, align 8
+
+define void @test_round() {
+; CHECK-LABEL: test_round:
+
+  %val = load fp128* @lhs, align 16
+
+  %float = fptrunc fp128 %val to float
+  store float %float, float* @varfloat, align 4
+; CHECK: bl __trunctfsf2
+; CHECK: str s0, [{{x[0-9]+}}, :lo12:varfloat]
+
+  %double = fptrunc fp128 %val to double
+  store double %double, double* @vardouble, align 8
+; CHECK: bl __trunctfdf2
+; CHECK: str d0, [{{x[0-9]+}}, :lo12:vardouble]
+
+  ret void
+}
+
+define void @test_extend() {
+; CHECK-LABEL: test_extend:
+
+  %val = load fp128* @lhs, align 16
+
+  %float = load float* @varfloat
+  %fromfloat = fpext float %float to fp128
+  store volatile fp128 %fromfloat, fp128* @lhs, align 16
+; CHECK: bl __extendsftf2
+; CHECK: str q0, [{{x[0-9]+}}, :lo12:lhs]
+
+  %double = load double* @vardouble
+  %fromdouble = fpext double %double to fp128
+  store volatile fp128 %fromdouble, fp128* @lhs, align 16
+; CHECK: bl __extenddftf2
+; CHECK: str q0, [{{x[0-9]+}}, :lo12:lhs]
+
+  ret void
+; CHECK: ret
+}
+
+define fp128 @test_neg(fp128 %in) {
+; CHECK: [[MINUS0:.LCPI[0-9]+_0]]:
+; Make sure the weird hex constant below *is* -0.0
+; CHECK-NEXT: fp128 -0
+
+; CHECK-LABEL: test_neg:
+
+  ; Could in principle be optimized to fneg which we can't select, this makes
+  ; sure that doesn't happen.
+  %ret = fsub fp128 0xL00000000000000008000000000000000, %in
+; CHECK: orr v1.16b, v0.16b, v0.16b
+; CHECK: ldr q0, [{{x[0-9]+}}, :lo12:[[MINUS0]]]
+; CHECK: bl __subtf3
+
+  ret fp128 %ret
+; CHECK: ret
+}