diff options
Diffstat (limited to 'test/CodeGen/XCore/unaligned_load.ll')
| -rw-r--r-- | test/CodeGen/XCore/unaligned_load.ll | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/test/CodeGen/XCore/unaligned_load.ll b/test/CodeGen/XCore/unaligned_load.ll new file mode 100644 index 000000000000..0ee8e1c32667 --- /dev/null +++ b/test/CodeGen/XCore/unaligned_load.ll @@ -0,0 +1,31 @@ +; RUN: llc < %s -march=xcore > %t1.s +; RUN: grep "bl __misaligned_load" %t1.s | count 1 +; RUN: grep ld16s %t1.s | count 2 +; RUN: grep ldw %t1.s | count 2 +; RUN: grep shl %t1.s | count 2 +; RUN: grep shr %t1.s | count 1 +; RUN: grep zext %t1.s | count 1 +; RUN: grep "or " %t1.s | count 2 + +; Byte aligned load. Expands to call to __misaligned_load. +define i32 @align1(i32* %p) nounwind { +entry: + %0 = load i32* %p, align 1 ; <i32> [#uses=1] + ret i32 %0 +} + +; Half word aligned load. Expands to two 16bit loads. +define i32 @align2(i32* %p) nounwind { +entry: + %0 = load i32* %p, align 2 ; <i32> [#uses=1] + ret i32 %0 +} + +@a = global [5 x i8] zeroinitializer, align 4 + +; Constant offset from word aligned base. Expands to two 32bit loads. +define i32 @align3() nounwind { +entry: + %0 = load i32* bitcast (i8* getelementptr ([5 x i8]* @a, i32 0, i32 1) to i32*), align 1 + ret i32 %0 +} |