[WebAssembly] Lower to target-independent saturating add

Summary: Goes along with D53721.

Reviewers: aheejin, dschuff

Subscribers: sbc100, jgravelle-google, sunfish, cfe-commits

Differential Revision: https://reviews.llvm.org/D53722

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@345300 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/CGBuiltin.cpp b/lib/CodeGen/CGBuiltin.cpp
index 9ae2df2dd798ceb3a609d353796bde4495d0bb79..3d1cf75952c279dd6a4cbc8aa1f55e2e35d44719 100644 (file)
--- a/lib/CodeGen/CGBuiltin.cpp
+++ b/lib/CodeGen/CGBuiltin.cpp
@@ -12614,11 +12614,11 @@ Value *CodeGenFunction::EmitWebAssemblyBuiltinExpr(unsigned BuiltinID,
     switch (BuiltinID) {
     case WebAssembly::BI__builtin_wasm_add_saturate_s_i8x16:
     case WebAssembly::BI__builtin_wasm_add_saturate_s_i16x8:
-      IntNo = Intrinsic::wasm_add_saturate_signed;
+      IntNo = Intrinsic::sadd_sat;
       break;
     case WebAssembly::BI__builtin_wasm_add_saturate_u_i8x16:
     case WebAssembly::BI__builtin_wasm_add_saturate_u_i16x8:
-      IntNo = Intrinsic::wasm_add_saturate_unsigned;
+      IntNo = Intrinsic::uadd_sat;
       break;
     case WebAssembly::BI__builtin_wasm_sub_saturate_s_i8x16:
     case WebAssembly::BI__builtin_wasm_sub_saturate_s_i16x8:

diff --git a/test/CodeGen/builtins-wasm.c b/test/CodeGen/builtins-wasm.c
index 1e94a8d8184df585328f4d34b6513297477e072c..56b5d32f3eb94b1b4e6b650d1f507d3202a5aa62 100644 (file)
--- a/test/CodeGen/builtins-wasm.c
+++ b/test/CodeGen/builtins-wasm.c
@@ -223,28 +223,28 @@ f64x2 replace_lane_f64x2(f64x2 v, double x) {
 
 i8x16 add_saturate_s_i8x16(i8x16 x, i8x16 y) {
   return __builtin_wasm_add_saturate_s_i8x16(x, y);
-  // WEBASSEMBLY: call <16 x i8> @llvm.wasm.add.saturate.signed.v16i8(
+  // WEBASSEMBLY: call <16 x i8> @llvm.sadd.sat.v16i8(
   // WEBASSEMBLY-SAME: <16 x i8> %x, <16 x i8> %y)
   // WEBASSEMBLY-NEXT: ret
 }
 
 i8x16 add_saturate_u_i8x16(i8x16 x, i8x16 y) {
   return __builtin_wasm_add_saturate_u_i8x16(x, y);
-  // WEBASSEMBLY: call <16 x i8> @llvm.wasm.add.saturate.unsigned.v16i8(
+  // WEBASSEMBLY: call <16 x i8> @llvm.uadd.sat.v16i8(
   // WEBASSEMBLY-SAME: <16 x i8> %x, <16 x i8> %y)
   // WEBASSEMBLY-NEXT: ret
 }
 
 i16x8 add_saturate_s_i16x8(i16x8 x, i16x8 y) {
   return __builtin_wasm_add_saturate_s_i16x8(x, y);
-  // WEBASSEMBLY: call <8 x i16> @llvm.wasm.add.saturate.signed.v8i16(
+  // WEBASSEMBLY: call <8 x i16> @llvm.sadd.sat.v8i16(
   // WEBASSEMBLY-SAME: <8 x i16> %x, <8 x i16> %y)
   // WEBASSEMBLY-NEXT: ret
 }
 
 i16x8 add_saturate_u_i16x8(i16x8 x, i16x8 y) {
   return __builtin_wasm_add_saturate_u_i16x8(x, y);
-  // WEBASSEMBLY: call <8 x i16> @llvm.wasm.add.saturate.unsigned.v8i16(
+  // WEBASSEMBLY: call <8 x i16> @llvm.uadd.sat.v8i16(
   // WEBASSEMBLY-SAME: <8 x i16> %x, <8 x i16> %y)
   // WEBASSEMBLY-NEXT: ret
 }