Update aosp/master LLVM with patches for fp16

Cherry-pick LLVM revisions r235191, r235215, r235220, r235341, r235363,
r235530, r235609, r235610, r237004

r235191 has a required bug-fix and the rest are all related to fp16.

Change-Id: I7fe8da5ffd8f2c06150885a54769abd18c3a04c6
(cherry picked from commit a18e6af1712fd41c4a705a19ad71f6e9ac7a4e68)

1 files changed, 89 insertions, 0 deletions

diff --git a/test/CodeGen/AArch64/fp16-vector-nvcast.ll b/test/CodeGen/AArch64/fp16-vector-nvcast.ll
new file mode 100644
index 0000000..83e0df7
--- /dev/null
+++ b/test/CodeGen/AArch64/fp16-vector-nvcast.ll
@@ -0,0 +1,89 @@
+; RUN: llc < %s -asm-verbose=false -mtriple=aarch64-none-eabi | FileCheck %s
+
+; Test pattern (v4f16 (AArch64NvCast (v2i32 FPR64:$src)))
+define void @nvcast_v2i32(<4 x half>* %a) #0 {
+; CHECK-LABEL: nvcast_v2i32:
+; CHECK-NEXT: movi v[[REG:[0-9]+]].2s, #0xab, lsl #16
+; CHECK-NEXT: str d[[REG]], [x0]
+; CHECK-NEXT: ret
+  store volatile <4 x half> <half 0xH0000, half 0xH00AB, half 0xH0000, half 0xH00AB>, <4 x half>* %a
+  ret void
+}
+
+
+; Test pattern (v4f16 (AArch64NvCast (v4i16 FPR64:$src)))
+define void @nvcast_v4i16(<4 x half>* %a) #0 {
+; CHECK-LABEL: nvcast_v4i16:
+; CHECK-NEXT: movi v[[REG:[0-9]+]].4h, #0xab
+; CHECK-NEXT: str d[[REG]], [x0]
+; CHECK-NEXT: ret
+  store volatile <4 x half> <half 0xH00AB, half 0xH00AB, half 0xH00AB, half 0xH00AB>, <4 x half>* %a
+  ret void
+}
+
+
+; Test pattern (v4f16 (AArch64NvCast (v8i8 FPR64:$src)))
+define void @nvcast_v8i8(<4 x half>* %a) #0 {
+; CHECK-LABEL: nvcast_v8i8:
+; CHECK-NEXT: movi v[[REG:[0-9]+]].8b, #0xab
+; CHECK-NEXT: str d[[REG]], [x0]
+; CHECK-NEXT: ret
+  store volatile <4 x half> <half 0xHABAB, half 0xHABAB, half 0xHABAB, half 0xHABAB>, <4 x half>* %a
+  ret void
+}
+
+
+; Test pattern (v4f16 (AArch64NvCast (f64 FPR64:$src)))
+define void @nvcast_f64(<4 x half>* %a) #0 {
+; CHECK-LABEL: nvcast_f64:
+; CHECK-NEXT: movi d[[REG:[0-9]+]], #0000000000000000
+; CHECK-NEXT: str d[[REG]], [x0]
+; CHECK-NEXT: ret
+  store volatile <4 x half> zeroinitializer, <4 x half>* %a
+  ret void
+}
+
+; Test pattern (v8f16 (AArch64NvCast (v4i32 FPR128:$src)))
+define void @nvcast_v4i32(<8 x half>* %a) #0 {
+; CHECK-LABEL: nvcast_v4i32:
+; CHECK-NEXT: movi v[[REG:[0-9]+]].4s, #0xab, lsl #16
+; CHECK-NEXT: str q[[REG]], [x0]
+; CHECK-NEXT: ret
+  store volatile <8 x half> <half 0xH0000, half 0xH00AB, half 0xH0000, half 0xH00AB, half 0xH0000, half 0xH00AB, half 0xH0000, half 0xH00AB>, <8 x half>* %a
+  ret void
+}
+
+
+; Test pattern (v8f16 (AArch64NvCast (v8i16 FPR128:$src)))
+define void @nvcast_v8i16(<8 x half>* %a) #0 {
+; CHECK-LABEL: nvcast_v8i16:
+; CHECK-NEXT: movi v[[REG:[0-9]+]].8h, #0xab
+; CHECK-NEXT: str q[[REG]], [x0]
+; CHECK-NEXT: ret
+  store volatile <8 x half> <half 0xH00AB, half 0xH00AB, half 0xH00AB, half 0xH00AB, half 0xH00AB, half 0xH00AB, half 0xH00AB, half 0xH00AB>, <8 x half>* %a
+  ret void
+}
+
+
+; Test pattern (v8f16 (AArch64NvCast (v16i8 FPR128:$src)))
+define void @nvcast_v16i8(<8 x half>* %a) #0 {
+; CHECK-LABEL: nvcast_v16i8:
+; CHECK-NEXT: movi v[[REG:[0-9]+]].16b, #0xab
+; CHECK-NEXT: str q[[REG]], [x0]
+; CHECK-NEXT: ret
+  store volatile <8 x half> <half 0xHABAB, half 0xHABAB, half 0xHABAB, half 0xHABAB, half 0xHABAB, half 0xHABAB, half 0xHABAB, half 0xHABAB>, <8 x half>* %a
+  ret void
+}
+
+
+; Test pattern (v8f16 (AArch64NvCast (v2i64 FPR128:$src)))
+define void @nvcast_v2i64(<8 x half>* %a) #0 {
+; CHECK-LABEL: nvcast_v2i64:
+; CHECK-NEXT: movi v[[REG:[0-9]+]].2d, #0000000000000000
+; CHECK-NEXT: str q[[REG]], [x0]
+; CHECK-NEXT: ret
+  store volatile <8 x half> zeroinitializer, <8 x half>* %a
+  ret void
+}
+
+attributes #0 = { nounwind }