diff options
Diffstat (limited to 'test/CodeGen/AArch64/sdivpow2.ll')
-rw-r--r-- | test/CodeGen/AArch64/sdivpow2.ll | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/test/CodeGen/AArch64/sdivpow2.ll b/test/CodeGen/AArch64/sdivpow2.ll new file mode 100644 index 0000000..6c02ea9 --- /dev/null +++ b/test/CodeGen/AArch64/sdivpow2.ll @@ -0,0 +1,74 @@ +; RUN: llc -mtriple=arm64-linux-gnu -fast-isel=0 -verify-machineinstrs < %s | FileCheck %s +; RUN: llc -mtriple=arm64-linux-gnu -fast-isel=1 -verify-machineinstrs < %s | FileCheck %s + +define i32 @test1(i32 %x) { +; CHECK-LABEL: test1 +; CHECK: add w8, w0, #7 +; CHECK: cmp w0, #0 +; CHECK: csel w8, w8, w0, lt +; CHECK: asr w0, w8, #3 + %div = sdiv i32 %x, 8 + ret i32 %div +} + +define i32 @test2(i32 %x) { +; CHECK-LABEL: test2 +; CHECK: add w8, w0, #7 +; CHECK: cmp w0, #0 +; CHECK: csel w8, w8, w0, lt +; CHECK: neg w0, w8, asr #3 + %div = sdiv i32 %x, -8 + ret i32 %div +} + +define i32 @test3(i32 %x) { +; CHECK-LABEL: test3 +; CHECK: add w8, w0, #31 +; CHECK: cmp w0, #0 +; CHECK: csel w8, w8, w0, lt +; CHECK: asr w0, w8, #5 + %div = sdiv i32 %x, 32 + ret i32 %div +} + +define i64 @test4(i64 %x) { +; CHECK-LABEL: test4 +; CHECK: add x8, x0, #7 +; CHECK: cmp x0, #0 +; CHECK: csel x8, x8, x0, lt +; CHECK: asr x0, x8, #3 + %div = sdiv i64 %x, 8 + ret i64 %div +} + +define i64 @test5(i64 %x) { +; CHECK-LABEL: test5 +; CHECK: add x8, x0, #7 +; CHECK: cmp x0, #0 +; CHECK: csel x8, x8, x0, lt +; CHECK: neg x0, x8, asr #3 + %div = sdiv i64 %x, -8 + ret i64 %div +} + +define i64 @test6(i64 %x) { +; CHECK-LABEL: test6 +; CHECK: add x8, x0, #63 +; CHECK: cmp x0, #0 +; CHECK: csel x8, x8, x0, lt +; CHECK: asr x0, x8, #6 + %div = sdiv i64 %x, 64 + ret i64 %div +} + +define i64 @test7(i64 %x) { +; CHECK-LABEL: test7 +; CHECK: orr [[REG:x[0-9]+]], xzr, #0xffffffffffff +; CHECK: add x8, x0, [[REG]] +; CHECK: cmp x0, #0 +; CHECK: csel x8, x8, x0, lt +; CHECK: asr x0, x8, #48 + %div = sdiv i64 %x, 281474976710656 + ret i64 %div +} + |