diff options
Diffstat (limited to 'test/CodeGen/Thumb/thumb-memcpy-ldm-stm.ll')
| -rw-r--r-- | test/CodeGen/Thumb/thumb-memcpy-ldm-stm.ll | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/test/CodeGen/Thumb/thumb-memcpy-ldm-stm.ll b/test/CodeGen/Thumb/thumb-memcpy-ldm-stm.ll new file mode 100644 index 0000000000..06cfd9bbef --- /dev/null +++ b/test/CodeGen/Thumb/thumb-memcpy-ldm-stm.ll @@ -0,0 +1,37 @@ +; RUN: llc -mtriple=thumbv6m-eabi %s -o - | FileCheck %s + +@d = external global [64 x i32] +@s = external global [64 x i32] + +; Function Attrs: nounwind +define void @t1() #0 { +entry: +; CHECK: ldr [[REG0:r[0-9]]], +; CHECK: ldm [[REG0]]!, +; CHECK: ldr [[REG1:r[0-9]]], +; CHECK: stm [[REG1]]!, +; CHECK: subs [[REG0]], #32 +; CHECK-NEXT: ldrb +; CHECK: subs [[REG1]], #32 +; CHECK-NEXT: strb + tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* bitcast ([64 x i32]* @s to i8*), i8* bitcast ([64 x i32]* @d to i8*), i32 33, i32 4, i1 false) + ret void +} + +; Function Attrs: nounwind +define void @t2() #0 { +entry: +; CHECK: ldr [[REG0:r[0-9]]], +; CHECK: ldm [[REG0]]!, +; CHECK: ldr [[REG1:r[0-9]]], +; CHECK: stm [[REG1]]!, +; CHECK: ldrh +; CHECK: ldrb +; CHECK: strb +; CHECK: strh + tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* bitcast ([64 x i32]* @s to i8*), i8* bitcast ([64 x i32]* @d to i8*), i32 15, i32 4, i1 false) + ret void +} + +; Function Attrs: nounwind +declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture readonly, i32, i32, i1) #1 |