diff options
Diffstat (limited to 'test/CodeGen/AArch64/tbz-tbnz.ll')
-rw-r--r-- | test/CodeGen/AArch64/tbz-tbnz.ll | 258 |
1 files changed, 258 insertions, 0 deletions
diff --git a/test/CodeGen/AArch64/tbz-tbnz.ll b/test/CodeGen/AArch64/tbz-tbnz.ll new file mode 100644 index 0000000..c77043c --- /dev/null +++ b/test/CodeGen/AArch64/tbz-tbnz.ll @@ -0,0 +1,258 @@ +; RUN: llc -O1 -march=aarch64 < %s | FileCheck %s + +declare void @t() + +define void @test1(i32 %a) { +; CHECK-LABEL: @test1 +entry: + %sub = add nsw i32 %a, -12 + %cmp = icmp slt i32 %sub, 0 + br i1 %cmp, label %if.then, label %if.end + +; CHECK: sub [[CMP:w[0-9]+]], w0, #12 +; CHECK: tbz [[CMP]], #31 + +if.then: + call void @t() + br label %if.end + +if.end: + ret void +} + +define void @test2(i64 %a) { +; CHECK-LABEL: @test2 +entry: + %sub = add nsw i64 %a, -12 + %cmp = icmp slt i64 %sub, 0 + br i1 %cmp, label %if.then, label %if.end + +; CHECK: sub [[CMP:x[0-9]+]], x0, #12 +; CHECK: tbz [[CMP]], #63 + +if.then: + call void @t() + br label %if.end + +if.end: + ret void +} + +define void @test3(i32 %a) { +; CHECK-LABEL: @test3 +entry: + %sub = add nsw i32 %a, -12 + %cmp = icmp sgt i32 %sub, -1 + br i1 %cmp, label %if.then, label %if.end + +; CHECK: sub [[CMP:w[0-9]+]], w0, #12 +; CHECK: tbnz [[CMP]], #31 + +if.then: + call void @t() + br label %if.end + +if.end: + ret void +} + +define void @test4(i64 %a) { +; CHECK-LABEL: @test4 +entry: + %sub = add nsw i64 %a, -12 + %cmp = icmp sgt i64 %sub, -1 + br i1 %cmp, label %if.then, label %if.end + +; CHECK: sub [[CMP:x[0-9]+]], x0, #12 +; CHECK: tbnz [[CMP]], #63 + +if.then: + call void @t() + br label %if.end + +if.end: + ret void +} + +define void @test5(i32 %a) { +; CHECK-LABEL: @test5 +entry: + %sub = add nsw i32 %a, -12 + %cmp = icmp sge i32 %sub, 0 + br i1 %cmp, label %if.then, label %if.end + +; CHECK: sub [[CMP:w[0-9]+]], w0, #12 +; CHECK: tbnz [[CMP]], #31 + +if.then: + call void @t() + br label %if.end + +if.end: + ret void +} + +define void @test6(i64 %a) { +; CHECK-LABEL: @test6 +entry: + %sub = add nsw i64 %a, -12 + %cmp = icmp sge i64 %sub, 0 + br i1 %cmp, label %if.then, label %if.end + +; CHECK: sub [[CMP:x[0-9]+]], x0, #12 +; CHECK: tbnz [[CMP]], #63 + +if.then: + call void @t() + br label %if.end + +if.end: + ret void +} + +define void @test7(i32 %a) { +; CHECK-LABEL: @test7 +entry: + %sub = sub nsw i32 %a, 12 + %cmp = icmp slt i32 %sub, 0 + br i1 %cmp, label %if.then, label %if.end + +; CHECK: sub [[CMP:w[0-9]+]], w0, #12 +; CHECK: tbz [[CMP]], #31 + +if.then: + call void @t() + br label %if.end + +if.end: + ret void +} + +define void @test8(i64 %val1, i64 %val2, i64 %val3) { +; CHECK-LABEL: @test8 + %and1 = and i64 %val1, %val2 + %tst1 = icmp slt i64 %and1, 0 + br i1 %tst1, label %if.then1, label %if.end + +; CHECK: tst x0, x1 +; CHECK-NEXT: b.ge + +if.then1: + %and2 = and i64 %val2, %val3 + %tst2 = icmp sge i64 %and2, 0 + br i1 %tst2, label %if.then2, label %if.end + +; CHECK: and [[CMP:x[0-9]+]], x1, x2 +; CHECK-NOT: cmp +; CHECK: tbnz [[CMP]], #63 + +if.then2: + %shifted_op1 = shl i64 %val2, 63 + %shifted_and1 = and i64 %val1, %shifted_op1 + %tst3 = icmp slt i64 %shifted_and1, 0 + br i1 %tst3, label %if.then3, label %if.end + +; CHECK: tst x0, x1, lsl #63 +; CHECK: b.ge + +if.then3: + %shifted_op2 = shl i64 %val2, 62 + %shifted_and2 = and i64 %val1, %shifted_op2 + %tst4 = icmp sge i64 %shifted_and2, 0 + br i1 %tst4, label %if.then4, label %if.end + +; CHECK: tst x0, x1, lsl #62 +; CHECK: b.lt + +if.then4: + call void @t() + br label %if.end + +if.end: + ret void +} + +define void @test9(i64 %val1) { +; CHECK-LABEL: @test9 + %tst = icmp slt i64 %val1, 0 + br i1 %tst, label %if.then, label %if.end + +; CHECK-NOT: cmp +; CHECK: tbz x0, #63 + +if.then: + call void @t() + br label %if.end + +if.end: + ret void +} + +define void @test10(i64 %val1) { +; CHECK-LABEL: @test10 + %tst = icmp slt i64 %val1, 0 + br i1 %tst, label %if.then, label %if.end + +; CHECK-NOT: cmp +; CHECK: tbz x0, #63 + +if.then: + call void @t() + br label %if.end + +if.end: + ret void +} + +define void @test11(i64 %val1, i64* %ptr) { +; CHECK-LABEL: @test11 + +; CHECK: ldr [[CMP:x[0-9]+]], [x1] +; CHECK-NOT: cmp +; CHECK: tbz [[CMP]], #63 + + %val = load i64* %ptr + %tst = icmp slt i64 %val, 0 + br i1 %tst, label %if.then, label %if.end + +if.then: + call void @t() + br label %if.end + +if.end: + ret void +} + +define void @test12(i64 %val1) { +; CHECK-LABEL: @test12 + %tst = icmp slt i64 %val1, 0 + br i1 %tst, label %if.then, label %if.end + +; CHECK-NOT: cmp +; CHECK: tbz x0, #63 + +if.then: + call void @t() + br label %if.end + +if.end: + ret void +} + +define void @test13(i64 %val1, i64 %val2) { +; CHECK-LABEL: @test13 + %or = or i64 %val1, %val2 + %tst = icmp slt i64 %or, 0 + br i1 %tst, label %if.then, label %if.end + +; CHECK: orr [[CMP:x[0-9]+]], x0, x1 +; CHECK-NOT: cmp +; CHECK: tbz [[CMP]], #63 + +if.then: + call void @t() + br label %if.end + +if.end: + ret void +} |