166 lines
3.8 KiB
LLVM
166 lines
3.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -ipsccp < %s | FileCheck %s
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; Make sure we always consider the default edge executable for a switch
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; with no cases.
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declare void @foo()
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define void @test1() {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: switch i32 undef, label [[D:%.*]] [
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; CHECK-NEXT: ]
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; CHECK: d:
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; CHECK-NEXT: call void @foo()
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; CHECK-NEXT: ret void
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;
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switch i32 undef, label %d []
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d:
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call void @foo()
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ret void
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}
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define i32 @test_local_range(i32 %x) {
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; CHECK-LABEL: @test_local_range(
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; CHECK-NEXT: [[C:%.*]] = icmp ult i32 [[X:%.*]], 3
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; CHECK-NEXT: call void @llvm.assume(i1 [[C]])
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; CHECK-NEXT: switch i32 [[X]], label [[SWITCH_DEFAULT:%.*]] [
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; CHECK-NEXT: i32 0, label [[SWITCH_0:%.*]]
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; CHECK-NEXT: i32 1, label [[SWITCH_1:%.*]]
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; CHECK-NEXT: i32 2, label [[SWITCH_2:%.*]]
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; CHECK-NEXT: i32 3, label [[SWITCH_3:%.*]]
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; CHECK-NEXT: ]
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; CHECK: switch.default:
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; CHECK-NEXT: ret i32 -1
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; CHECK: switch.0:
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; CHECK-NEXT: ret i32 0
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; CHECK: switch.1:
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; CHECK-NEXT: ret i32 1
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; CHECK: switch.2:
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; CHECK-NEXT: ret i32 2
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; CHECK: switch.3:
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; CHECK-NEXT: ret i32 3
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;
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%c = icmp ult i32 %x, 3
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call void @llvm.assume(i1 %c)
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switch i32 %x, label %switch.default [
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i32 0, label %switch.0
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i32 1, label %switch.1
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i32 2, label %switch.2
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i32 3, label %switch.3
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]
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switch.default:
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ret i32 -1
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switch.0:
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ret i32 0
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switch.1:
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ret i32 1
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switch.2:
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ret i32 2
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switch.3:
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ret i32 3
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}
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define i32 @test_duplicate_successors(i32 %x) {
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; CHECK-LABEL: @test_duplicate_successors(
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; CHECK-NEXT: [[C:%.*]] = icmp ult i32 [[X:%.*]], 3
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; CHECK-NEXT: call void @llvm.assume(i1 [[C]])
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; CHECK-NEXT: switch i32 [[X]], label [[SWITCH_DEFAULT:%.*]] [
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; CHECK-NEXT: i32 0, label [[SWITCH_0:%.*]]
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; CHECK-NEXT: i32 1, label [[SWITCH_0]]
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; CHECK-NEXT: i32 2, label [[SWITCH_1:%.*]]
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; CHECK-NEXT: i32 3, label [[SWITCH_1]]
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; CHECK-NEXT: i32 4, label [[SWITCH_2:%.*]]
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; CHECK-NEXT: i32 5, label [[SWITCH_2]]
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; CHECK-NEXT: ]
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; CHECK: switch.default:
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; CHECK-NEXT: ret i32 -1
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; CHECK: switch.0:
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; CHECK-NEXT: ret i32 0
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; CHECK: switch.1:
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; CHECK-NEXT: ret i32 1
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; CHECK: switch.2:
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; CHECK-NEXT: ret i32 2
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;
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%c = icmp ult i32 %x, 3
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call void @llvm.assume(i1 %c)
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switch i32 %x, label %switch.default [
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i32 0, label %switch.0
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i32 1, label %switch.0
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i32 2, label %switch.1
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i32 3, label %switch.1
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i32 4, label %switch.2
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i32 5, label %switch.2
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]
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switch.default:
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ret i32 -1
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switch.0:
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ret i32 0
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switch.1:
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ret i32 1
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switch.2:
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ret i32 2
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}
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define internal i32 @test_ip_range(i32 %x) {
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; CHECK-LABEL: @test_ip_range(
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; CHECK-NEXT: switch i32 [[X:%.*]], label [[SWITCH_DEFAULT:%.*]] [
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; CHECK-NEXT: i32 0, label [[SWITCH_0:%.*]]
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; CHECK-NEXT: i32 1, label [[SWITCH_1:%.*]]
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; CHECK-NEXT: i32 2, label [[SWITCH_2:%.*]]
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; CHECK-NEXT: i32 3, label [[SWITCH_3:%.*]]
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; CHECK-NEXT: ]
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; CHECK: switch.default:
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; CHECK-NEXT: ret i32 -1
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; CHECK: switch.0:
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; CHECK-NEXT: ret i32 0
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; CHECK: switch.1:
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; CHECK-NEXT: ret i32 1
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; CHECK: switch.2:
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; CHECK-NEXT: ret i32 2
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; CHECK: switch.3:
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; CHECK-NEXT: ret i32 3
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;
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switch i32 %x, label %switch.default [
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i32 0, label %switch.0
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i32 1, label %switch.1
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i32 2, label %switch.2
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i32 3, label %switch.3
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]
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switch.default:
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ret i32 -1
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switch.0:
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ret i32 0
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switch.1:
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ret i32 1
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switch.2:
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ret i32 2
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switch.3:
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ret i32 3
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}
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define void @call_test_ip_range() {
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; CHECK-LABEL: @call_test_ip_range(
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; CHECK-NEXT: [[TMP1:%.*]] = call i32 @test_ip_range(i32 1)
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; CHECK-NEXT: [[TMP2:%.*]] = call i32 @test_ip_range(i32 3)
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; CHECK-NEXT: ret void
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;
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call i32 @test_ip_range(i32 1)
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call i32 @test_ip_range(i32 3)
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ret void
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}
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declare void @llvm.assume(i1)
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