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authorBob Wilson <bob.wilson@apple.com>2010-12-15 23:36:44 +0000
committerBob Wilson <bob.wilson@apple.com>2010-12-15 23:36:44 +0000
commit46e392ae6d09979b087d7b1aca3b816ba4199b89 (patch)
treeef14e54611a216f591a08673b018a228d0f78409
parent7504966cc0d07eac26baabec80a7406695efb307 (diff)
Implement builtins for Neon half-precision float conversions.
Also tweak the VCVT_F32_F16 entry in arm_neon.td to be more consistent with the other floating-point conversion builtins. Radar 8068427. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121916 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r--include/clang/Basic/arm_neon.td2
-rw-r--r--lib/CodeGen/CGBuiltin.cpp11
2 files changed, 11 insertions, 2 deletions
diff --git a/include/clang/Basic/arm_neon.td b/include/clang/Basic/arm_neon.td
index d366d6938e..880a0da6bc 100644
--- a/include/clang/Basic/arm_neon.td
+++ b/include/clang/Basic/arm_neon.td
@@ -303,7 +303,7 @@ def VCVT_F16 : SInst<"vcvt_f16", "hk", "f">;
def VCVT_N_S32 : SInst<"vcvt_n_s32", "xdi", "fQf">;
def VCVT_N_U32 : SInst<"vcvt_n_u32", "udi", "fQf">;
def VCVT_F32 : SInst<"vcvt_f32", "fd", "iUiQiQUi">;
-def VCVT_F32_F16 : SInst<"vcvt_f32_f16", "kh", "f">;
+def VCVT_F32_F16 : SInst<"vcvt_f32_f16", "fd", "h">;
def VCVT_N_F32 : SInst<"vcvt_n_f32", "fdi", "iUiQiQUi">;
def VMOVN : IInst<"vmovn", "hk", "silUsUiUl">;
def VMOVL : SInst<"vmovl", "wd", "csiUcUsUi">;
diff --git a/lib/CodeGen/CGBuiltin.cpp b/lib/CodeGen/CGBuiltin.cpp
index 19c3fbb1fa..3fc5efd7f3 100644
--- a/lib/CodeGen/CGBuiltin.cpp
+++ b/lib/CodeGen/CGBuiltin.cpp
@@ -1226,7 +1226,16 @@ Value *CodeGenFunction::EmitARMBuiltinExpr(unsigned BuiltinID,
Function *F = CGM.getIntrinsic(Intrinsic::arm_neon_vcnt, &Ty, 1);
return EmitNeonCall(F, Ops, "vcnt");
}
- // FIXME: intrinsics for f16<->f32 convert missing from ARM target.
+ case ARM::BI__builtin_neon_vcvt_f16_v: {
+ assert((type & 0x7) == 7 && !quad && "unexpected vcvt_f16_v builtin");
+ Function *F = CGM.getIntrinsic(Intrinsic::arm_neon_vcvtfp2hf);
+ return EmitNeonCall(F, Ops, "vcvt");
+ }
+ case ARM::BI__builtin_neon_vcvt_f32_f16: {
+ assert((type & 0x7) == 7 && !quad && "unexpected vcvt_f32_f16 builtin");
+ Function *F = CGM.getIntrinsic(Intrinsic::arm_neon_vcvthf2fp);
+ return EmitNeonCall(F, Ops, "vcvt");
+ }
case ARM::BI__builtin_neon_vcvt_f32_v:
case ARM::BI__builtin_neon_vcvtq_f32_v: {
Ops[0] = Builder.CreateBitCast(Ops[0], Ty);