1 files changed, 36 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/krait-cpu-div-attribute.ll b/test/CodeGen/ARM/krait-cpu-div-attribute.ll
new file mode 100644
index 0000000..b7a1dcc
--- /dev/null
+++ b/test/CodeGen/ARM/krait-cpu-div-attribute.ll
@@ -0,0 +1,36 @@
+; Tests the genration of ".arch_extension" attribute for hardware
+; division on krait CPU. For now, krait is recognized as "cortex-a9" + hwdiv
+; Also, tests for the hwdiv instruction on krait CPU
+
+; check for arch_extension/cpu directive
+; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=krait | FileCheck %s --check-prefix=DIV_EXTENSION
+; RUN: llc < %s -mtriple=thumbv7-linux-gnueabi -mcpu=krait | FileCheck %s --check-prefix=DIV_EXTENSION
+; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a9 | FileCheck %s --check-prefix=NODIV_KRAIT
+; RUN: llc < %s -mtriple=thumbv7-linux-gnueabi -mcpu=cortex-a9 | FileCheck %s --check-prefix=NODIV_KRAIT
+; RUN: llc < %s -mcpu=krait -mattr=-hwdiv,-hwdiv-arm | FileCheck %s --check-prefix=NODIV_KRAIT
+
+; check if correct instruction is emitted by integrated assembler
+; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=krait -filetype=obj | llvm-objdump -mcpu=krait -triple armv7-linux-gnueabi -d - | FileCheck %s --check-prefix=HWDIV
+; RUN: llc < %s -mtriple=thumbv7-linux-gnueabi -mcpu=krait -filetype=obj | llvm-objdump -mcpu=krait -triple thumbv7-linux-gnueabi -d - | FileCheck %s --check-prefix=HWDIV
+
+; arch_extension attribute
+; DIV_EXTENSION:  .cpu cortex-a9
+; DIV_EXTENSION:  .arch_extension idiv
+; NODIV_KRAIT-NOT:  .arch_extension idiv
+; HWDIV: sdiv
+
+define i32 @main() #0 {
+entry:
+  %retval = alloca i32, align 4
+  %a = alloca i32, align 4
+  %b = alloca i32, align 4
+  %c = alloca i32, align 4
+  store i32 0, i32* %retval
+  store volatile i32 100, i32* %b, align 4
+  store volatile i32 32, i32* %c, align 4
+  %0 = load volatile i32* %b, align 4
+  %1 = load volatile i32* %c, align 4
+  %div = sdiv i32 %0, %1
+  store volatile i32 %div, i32* %a, align 4
+  ret i32 0
+}