WebAssembly: add basic floating-point tests

Summary: I somehow forgot to add these when I added the basic floating-point opcodes. Also remove ceil/floor/trunc/nearestint for now, and add them only when properly tested.

Subscribers: llvm-commits, sunfish, jfb

Differential Revision: http://reviews.llvm.org/D11927

llvm-svn: 244562

1 files changed, 69 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/WebAssembly/fp64.ll b/llvm/test/CodeGen/WebAssembly/fp64.ll
new file mode 100644
index 00000000000..7a7365964f5
--- /dev/null
+++ b/llvm/test/CodeGen/WebAssembly/fp64.ll
@@ -0,0 +1,69 @@
+; RUN: llc < %s -asm-verbose=false | FileCheck %s
+
+; Test that basic 64-bit floating-point operations assemble as expected.
+
+target datalayout = "e-p:32:32-i64:64-v128:8:128-n32:64-S128"
+target triple = "wasm32-unknown-unknown"
+
+declare double @llvm.fabs.f64(double)
+declare double @llvm.copysign.f64(double, double)
+declare double @llvm.sqrt.f64(double)
+
+; CHECK-LABEL: fadd64:
+; CHECK-NEXT: (setlocal @0 (argument 1))
+; CHECK-NEXT: (setlocal @1 (argument 0))
+; CHECK-NEXT: (setlocal @2 (fadd @1 @0))
+; CHECK-NEXT: (return @2)
+define double @fadd64(double %x, double %y) {
+  %a = fadd double %x, %y
+  ret double %a
+}
+
+; CHECK-LABEL: fsub64:
+; CHECK: (setlocal @2 (fsub @1 @0))
+define double @fsub64(double %x, double %y) {
+  %a = fsub double %x, %y
+  ret double %a
+}
+
+; CHECK-LABEL: fmul64:
+; CHECK: (setlocal @2 (fmul @1 @0))
+define double @fmul64(double %x, double %y) {
+  %a = fmul double %x, %y
+  ret double %a
+}
+
+; CHECK-LABEL: fdiv64:
+; CHECK: (setlocal @2 (fdiv @1 @0))
+define double @fdiv64(double %x, double %y) {
+  %a = fdiv double %x, %y
+  ret double %a
+}
+
+; CHECK-LABEL: fabs64:
+; CHECK: (setlocal @1 (fabs @0))
+define double @fabs64(double %x) {
+  %a = call double @llvm.fabs.f64(double %x)
+  ret double %a
+}
+
+; CHECK-LABEL: fneg64:
+; CHECK: (setlocal @1 (fneg @0))
+define double @fneg64(double %x) {
+  %a = fsub double -0., %x
+  ret double %a
+}
+
+; CHECK-LABEL: copysign64:
+; CHECK: (setlocal @2 (copysign @1 @0))
+define double @copysign64(double %x, double %y) {
+  %a = call double @llvm.copysign.f64(double %x, double %y)
+  ret double %a
+}
+
+; CHECK-LABEL: sqrt64:
+; CHECK: (setlocal @1 (sqrt @0))
+define double @sqrt64(double %x) {
+  %a = call double @llvm.sqrt.f64(double %x)
+  ret double %a
+}