1 files changed, 128 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/AArch64/f16-convert.ll b/llvm/test/CodeGen/AArch64/f16-convert.ll
new file mode 100644
index 00000000000..5d70fc2bbd1
--- /dev/null
+++ b/llvm/test/CodeGen/AArch64/f16-convert.ll
@@ -0,0 +1,128 @@
+; RUN: llc < %s -mtriple=arm64-apple-ios -asm-verbose=false | FileCheck %s
+
+define float @load0(i16* nocapture readonly %a) nounwind {
+; CHECK-LABEL: load0:
+; CHECK-NEXT: ldr [[HREG:h[0-9]+]], [x0]
+; CHECK-NEXT: fcvt s0, [[HREG]]
+; CHECK-NEXT: ret
+
+  %tmp = load i16* %a, align 2
+  %tmp1 = tail call float @llvm.convert.from.fp16(i16 %tmp)
+  ret float %tmp1
+}
+
+define double @load1(i16* nocapture readonly %a) nounwind {
+; CHECK-LABEL: load1:
+; CHECK-NEXT: ldr [[HREG:h[0-9]+]], [x0]
+; CHECK-NEXT: fcvt d0, [[HREG]]
+; CHECK-NEXT: ret
+
+  %tmp = load i16* %a, align 2
+  %tmp1 = tail call float @llvm.convert.from.fp16(i16 %tmp)
+  %conv = fpext float %tmp1 to double
+  ret double %conv
+}
+
+define float @load2(i16* nocapture readonly %a, i32 %i) nounwind {
+; CHECK-LABEL: load2:
+; CHECK-NEXT: ldr [[HREG:h[0-9]+]], [x0, w1, sxtw #1]
+; CHECK-NEXT: fcvt s0, [[HREG]]
+; CHECK-NEXT: ret
+
+  %idxprom = sext i32 %i to i64
+  %arrayidx = getelementptr inbounds i16* %a, i64 %idxprom
+  %tmp = load i16* %arrayidx, align 2
+  %tmp1 = tail call float @llvm.convert.from.fp16(i16 %tmp)
+  ret float %tmp1
+}
+
+define double @load3(i16* nocapture readonly %a, i32 %i) nounwind {
+; CHECK-LABEL: load3:
+; CHECK-NEXT: ldr [[HREG:h[0-9]+]], [x0, w1, sxtw #1]
+; CHECK-NEXT: fcvt d0, [[HREG]]
+; CHECK-NEXT: ret
+
+  %idxprom = sext i32 %i to i64
+  %arrayidx = getelementptr inbounds i16* %a, i64 %idxprom
+  %tmp = load i16* %arrayidx, align 2
+  %tmp1 = tail call float @llvm.convert.from.fp16(i16 %tmp)
+  %conv = fpext float %tmp1 to double
+  ret double %conv
+}
+
+define float @load4(i16* nocapture readonly %a, i64 %i) nounwind {
+; CHECK-LABEL: load4:
+; CHECK-NEXT: ldr [[HREG:h[0-9]+]], [x0, x1, lsl #1]
+; CHECK-NEXT: fcvt s0, [[HREG]]
+; CHECK-NEXT: ret
+
+  %arrayidx = getelementptr inbounds i16* %a, i64 %i
+  %tmp = load i16* %arrayidx, align 2
+  %tmp1 = tail call float @llvm.convert.from.fp16(i16 %tmp)
+  ret float %tmp1
+}
+
+define double @load5(i16* nocapture readonly %a, i64 %i) nounwind {
+; CHECK-LABEL: load5:
+; CHECK-NEXT: ldr [[HREG:h[0-9]+]], [x0, x1, lsl #1]
+; CHECK-NEXT: fcvt d0, [[HREG]]
+; CHECK-NEXT: ret
+
+  %arrayidx = getelementptr inbounds i16* %a, i64 %i
+  %tmp = load i16* %arrayidx, align 2
+  %tmp1 = tail call float @llvm.convert.from.fp16(i16 %tmp)
+  %conv = fpext float %tmp1 to double
+  ret double %conv
+}
+
+define float @load6(i16* nocapture readonly %a) nounwind {
+; CHECK-LABEL: load6:
+; CHECK-NEXT: ldr [[HREG:h[0-9]+]], [x0, #20]
+; CHECK-NEXT: fcvt s0, [[HREG]]
+; CHECK-NEXT: ret
+
+  %arrayidx = getelementptr inbounds i16* %a, i64 10
+  %tmp = load i16* %arrayidx, align 2
+  %tmp1 = tail call float @llvm.convert.from.fp16(i16 %tmp)
+  ret float %tmp1
+}
+
+define double @load7(i16* nocapture readonly %a) nounwind {
+; CHECK-LABEL: load7:
+; CHECK-NEXT: ldr [[HREG:h[0-9]+]], [x0, #20]
+; CHECK-NEXT: fcvt d0, [[HREG]]
+; CHECK-NEXT: ret
+
+  %arrayidx = getelementptr inbounds i16* %a, i64 10
+  %tmp = load i16* %arrayidx, align 2
+  %tmp1 = tail call float @llvm.convert.from.fp16(i16 %tmp)
+  %conv = fpext float %tmp1 to double
+  ret double %conv
+}
+
+define float @load8(i16* nocapture readonly %a) nounwind {
+; CHECK-LABEL: load8:
+; CHECK-NEXT: ldur [[HREG:h[0-9]+]], [x0, #-20]
+; CHECK-NEXT: fcvt s0, [[HREG]]
+; CHECK-NEXT: ret
+
+  %arrayidx = getelementptr inbounds i16* %a, i64 -10
+  %tmp = load i16* %arrayidx, align 2
+  %tmp1 = tail call float @llvm.convert.from.fp16(i16 %tmp)
+  ret float %tmp1
+}
+
+define double @load9(i16* nocapture readonly %a) nounwind {
+; CHECK-LABEL: load9:
+; CHECK-NEXT: ldur [[HREG:h[0-9]+]], [x0, #-20]
+; CHECK-NEXT: fcvt d0, [[HREG]]
+; CHECK-NEXT: ret
+
+  %arrayidx = getelementptr inbounds i16* %a, i64 -10
+  %tmp = load i16* %arrayidx, align 2
+  %tmp1 = tail call float @llvm.convert.from.fp16(i16 %tmp)
+  %conv = fpext float %tmp1 to double
+  ret double %conv
+}
+
+declare float @llvm.convert.from.fp16(i16) nounwind readnone