1 files changed, 81 insertions, 0 deletions
diff --git a/test/CodeGen/X86/function-subtarget-features.ll b/test/CodeGen/X86/function-subtarget-features.ll
new file mode 100644
index 0000000..b1e2585
--- /dev/null
+++ b/test/CodeGen/X86/function-subtarget-features.ll
@@ -0,0 +1,81 @@
+; RUN: llc < %s -march=x86-64 -o - | FileCheck %s
+
+; This test verifies that we produce different code for different architectures
+; based on target-cpu and target-features attributes.
+; In this case avx has a vmovss instruction and otherwise we should be using movss
+; to materialize constants.
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+
+define float @_Z3barv() #0 {
+entry:
+  ret float 4.000000e+00
+}
+
+; CHECK: barv
+; CHECK: vmovss
+
+define float @_Z4testv() #1 {
+entry:
+  ret float 1.000000e+00
+}
+
+; CHECK: testv
+; CHECK: movss
+
+define float @_Z3foov() #2 {
+entry:
+  ret float 4.000000e+00
+}
+
+; CHECK: foov
+; CHECK: movss
+
+define float @_Z3bazv() #0 {
+entry:
+  ret float 4.000000e+00
+}
+
+; CHECK: bazv
+; CHECK: vmovss
+
+define <2 x i64> @foo(<2 x i64> %a) #3 {
+entry:
+  %a.addr = alloca <2 x i64>, align 16
+  store <2 x i64> %a, <2 x i64>* %a.addr, align 16
+  %0 = load <2 x i64>, <2 x i64>* %a.addr, align 16
+  %1 = call <2 x i64> @llvm.x86.aesni.aeskeygenassist(<2 x i64> %0, i8 4)
+  ret <2 x i64> %1
+}
+
+; Function Attrs: nounwind readnone
+declare <2 x i64> @llvm.x86.aesni.aeskeygenassist(<2 x i64>, i8)
+
+; CHECK: foo
+; CHECK: aeskeygenassist
+
+; Function Attrs: nounwind uwtable
+define i32 @bar(i32 %crc, i8* %a) #3 {
+entry:
+  %crc.addr = alloca i32, align 4
+  %a.addr = alloca i8*, align 8
+  store i32 %crc, i32* %crc.addr, align 4
+  store i8* %a, i8** %a.addr, align 8
+  %0 = load i32, i32* %crc.addr, align 4
+  %1 = load i8*, i8** %a.addr, align 8
+  %incdec.ptr = getelementptr inbounds i8, i8* %1, i32 1
+  store i8* %incdec.ptr, i8** %a.addr, align 8
+  %2 = load i8, i8* %1, align 1
+  %3 = call i32 @llvm.x86.sse42.crc32.32.8(i32 %0, i8 %2)
+  ret i32 %3
+}
+
+; Function Attrs: nounwind readnone
+declare i32 @llvm.x86.sse42.crc32.32.8(i32, i8)
+
+; CHECK: bar
+; CHECK: crc32b
+
+attributes #0 = { "target-cpu"="x86-64" "target-features"="+avx2" }
+attributes #1 = { "target-cpu"="x86-64" }
+attributes #2 = { "target-cpu"="corei7" "target-features"="+sse4.2" }
+attributes #3 = { "target-cpu"="x86-64" "target-features"="+avx2,+aes" }