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282 lines
5.8 KiB
LLVM
282 lines
5.8 KiB
LLVM
; RUN: llc -march=x86-64 -print-machineinstrs=expand-isel-pseudos %s -o /dev/null 2>&1 | FileCheck %s
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declare void @foo(i32)
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; CHECK-LABEL: test
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define void @test(i32 %x) nounwind {
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entry:
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switch i32 %x, label %sw.default [
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i32 1, label %sw.bb
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i32 155, label %sw.bb
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i32 156, label %sw.bb
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i32 157, label %sw.bb
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i32 158, label %sw.bb
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i32 159, label %sw.bb
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i32 1134, label %sw.bb
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i32 1140, label %sw.bb
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], !prof !1
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sw.bb:
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call void @foo(i32 0)
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br label %sw.epilog
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sw.default:
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call void @foo(i32 1)
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br label %sw.epilog
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sw.epilog:
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ret void
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; Check if weights are correctly assigned to edges generated from switch
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; statement.
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;
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; CHECK: BB#0:
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; BB#0 to BB#4: [0, 1133] (65 = 60 + 5)
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; BB#0 to BB#5: [1134, UINT32_MAX] (25 = 20 + 5)
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; CHECK: Successors according to CFG: BB#4(65) BB#5(25)
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;
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; CHECK: BB#4:
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; BB#4 to BB#1: [155, 159] (50)
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; BB#4 to BB#5: [0, 1133] - [155, 159] (15 = 10 + 5)
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; CHECK: Successors according to CFG: BB#1(50) BB#7(15)
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;
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; CHECK: BB#5:
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; BB#5 to BB#1: {1140} (10)
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; BB#5 to BB#6: [1134, UINT32_MAX] - {1140} (15 = 10 + 5)
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; CHECK: Successors according to CFG: BB#1(10) BB#6(15)
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;
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; CHECK: BB#6:
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; BB#6 to BB#1: {1134} (10)
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; BB#6 to BB#2: [1134, UINT32_MAX] - {1134, 1140} (5)
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; CHECK: Successors according to CFG: BB#1(10) BB#2(5)
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}
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; CHECK-LABEL: test2
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define void @test2(i32 %x) nounwind {
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entry:
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; In this switch statement, there is an edge from jump table to default
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; statement.
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switch i32 %x, label %sw.default [
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i32 1, label %sw.bb
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i32 10, label %sw.bb2
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i32 11, label %sw.bb3
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i32 12, label %sw.bb4
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i32 13, label %sw.bb5
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i32 14, label %sw.bb5
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], !prof !3
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sw.bb:
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call void @foo(i32 0)
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br label %sw.epilog
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sw.bb2:
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call void @foo(i32 2)
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br label %sw.epilog
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sw.bb3:
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call void @foo(i32 3)
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br label %sw.epilog
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sw.bb4:
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call void @foo(i32 4)
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br label %sw.epilog
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sw.bb5:
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call void @foo(i32 5)
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br label %sw.epilog
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sw.default:
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call void @foo(i32 1)
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br label %sw.epilog
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sw.epilog:
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ret void
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; Check if weights are correctly assigned to edges generated from switch
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; statement.
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;
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; CHECK: BB#0:
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; BB#0 to BB#6: {0} + [15, UINT32_MAX] (5)
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; BB#0 to BB#8: [1, 14] (jump table) (65 = 60 + 5)
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; CHECK: Successors according to CFG: BB#6(5) BB#8(65)
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;
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; CHECK: BB#8:
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; BB#8 to BB#1: {1} (10)
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; BB#8 to BB#6: [2, 9] (5)
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; BB#8 to BB#2: {10} (10)
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; BB#8 to BB#3: {11} (10)
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; BB#8 to BB#4: {12} (10)
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; BB#8 to BB#5: {13, 14} (20)
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; CHECK: Successors according to CFG: BB#1(10) BB#6(5) BB#2(10) BB#3(10) BB#4(10) BB#5(20)
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}
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; CHECK-LABEL: test3
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define void @test3(i32 %x) nounwind {
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entry:
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; In this switch statement, there is no edge from jump table to default
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; statement.
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switch i32 %x, label %sw.default [
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i32 10, label %sw.bb
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i32 11, label %sw.bb2
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i32 12, label %sw.bb3
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i32 13, label %sw.bb4
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i32 14, label %sw.bb5
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], !prof !2
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sw.bb:
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call void @foo(i32 0)
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br label %sw.epilog
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sw.bb2:
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call void @foo(i32 2)
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br label %sw.epilog
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sw.bb3:
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call void @foo(i32 3)
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br label %sw.epilog
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sw.bb4:
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call void @foo(i32 4)
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br label %sw.epilog
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sw.bb5:
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call void @foo(i32 5)
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br label %sw.epilog
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sw.default:
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call void @foo(i32 1)
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br label %sw.epilog
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sw.epilog:
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ret void
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; Check if weights are correctly assigned to edges generated from switch
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; statement.
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;
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; CHECK: BB#0:
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; BB#0 to BB#6: [0, 9] + [15, UINT32_MAX] {10}
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; BB#0 to BB#8: [10, 14] (jump table) (50)
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; CHECK: Successors according to CFG: BB#6(10) BB#8(50)
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;
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; CHECK: BB#8:
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; BB#8 to BB#1: {10} (10)
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; BB#8 to BB#2: {11} (10)
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; BB#8 to BB#3: {12} (10)
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; BB#8 to BB#4: {13} (10)
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; BB#8 to BB#5: {14} (10)
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; CHECK: Successors according to CFG: BB#1(10) BB#2(10) BB#3(10) BB#4(10) BB#5(10)
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}
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; CHECK-LABEL: test4
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define void @test4(i32 %x) nounwind {
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entry:
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; In this switch statement, there is no edge from bit test to default basic
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; block.
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switch i32 %x, label %sw.default [
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i32 1, label %sw.bb
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i32 111, label %sw.bb2
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i32 112, label %sw.bb3
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i32 113, label %sw.bb3
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i32 114, label %sw.bb2
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i32 115, label %sw.bb2
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], !prof !3
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sw.bb:
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call void @foo(i32 0)
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br label %sw.epilog
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sw.bb2:
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call void @foo(i32 2)
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br label %sw.epilog
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sw.bb3:
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call void @foo(i32 3)
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br label %sw.epilog
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sw.default:
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call void @foo(i32 1)
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br label %sw.epilog
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sw.epilog:
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ret void
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; Check if weights are correctly assigned to edges generated from switch
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; statement.
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;
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; CHECK: BB#0:
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; BB#0 to BB#6: [0, 110] + [116, UINT32_MAX] (20)
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; BB#0 to BB#7: [111, 115] (bit test) (50)
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; CHECK: Successors according to CFG: BB#6(20) BB#7(50)
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;
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; CHECK: BB#7:
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; BB#7 to BB#2: {111, 114, 115} (30)
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; BB#7 to BB#3: {112, 113} (20)
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; CHECK: Successors according to CFG: BB#2(30) BB#3(20)
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}
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; CHECK-LABEL: test5
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define void @test5(i32 %x) nounwind {
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entry:
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; In this switch statement, there is an edge from jump table to default basic
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; block.
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switch i32 %x, label %sw.default [
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i32 1, label %sw.bb
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i32 5, label %sw.bb2
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i32 7, label %sw.bb3
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i32 9, label %sw.bb4
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i32 31, label %sw.bb5
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], !prof !2
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sw.bb:
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call void @foo(i32 0)
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br label %sw.epilog
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sw.bb2:
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call void @foo(i32 1)
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br label %sw.epilog
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sw.bb3:
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call void @foo(i32 2)
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br label %sw.epilog
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sw.bb4:
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call void @foo(i32 3)
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br label %sw.epilog
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sw.bb5:
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call void @foo(i32 4)
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br label %sw.epilog
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sw.default:
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call void @foo(i32 5)
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br label %sw.epilog
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sw.epilog:
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ret void
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; Check if weights are correctly assigned to edges generated from switch
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; statement.
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;
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; CHECK: BB#0:
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; BB#0 to BB#6: [10, UINT32_MAX] (15)
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; BB#0 to BB#8: [1, 5, 7, 9] (jump table) (45)
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; CHECK: Successors according to CFG: BB#8(15) BB#9(45)
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}
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!1 = !{!"branch_weights", i32 10, i32 10, i32 10, i32 10, i32 10, i32 10, i32 10, i32 10, i32 10}
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!2 = !{!"branch_weights", i32 10, i32 10, i32 10, i32 10, i32 10, i32 10}
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!3 = !{!"branch_weights", i32 10, i32 10, i32 10, i32 10, i32 10, i32 10, i32 10}
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