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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=constraint-elimination -S %s | FileCheck %s
declare void @may_unwind()
define i1 @test_switch_in_block_with_assume(i32 %x) {
; CHECK-LABEL: @test_switch_in_block_with_assume(
; CHECK-NEXT: entry:
; CHECK-NEXT: call void @may_unwind()
; CHECK-NEXT: [[C_1:%.*]] = icmp ult i32 [[X:%.*]], 10
; CHECK-NEXT: call void @llvm.assume(i1 [[C_1]])
; CHECK-NEXT: switch i32 0, label [[EXIT_1:%.*]] [
; CHECK-NEXT: i32 1, label [[EXIT_2:%.*]]
; CHECK-NEXT: ]
; CHECK: exit.1:
; CHECK-NEXT: [[T_1:%.*]] = icmp ult i32 [[X]], 10
; CHECK-NEXT: [[C_2:%.*]] = icmp ult i32 [[X]], 9
; CHECK-NEXT: [[RES_1:%.*]] = xor i1 true, [[C_2]]
; CHECK-NEXT: ret i1 [[RES_1]]
; CHECK: exit.2:
; CHECK-NEXT: [[T_2:%.*]] = icmp ult i32 [[X]], 10
; CHECK-NEXT: [[C_3:%.*]] = icmp ult i32 [[X]], 9
; CHECK-NEXT: [[RES_2:%.*]] = xor i1 true, [[C_3]]
; CHECK-NEXT: ret i1 [[RES_2]]
;
entry:
call void @may_unwind()
%c.1 = icmp ult i32 %x, 10
call void @llvm.assume(i1 %c.1)
switch i32 0, label %exit.1 [
i32 1, label %exit.2
]
exit.1:
%t.1 = icmp ult i32 %x, 10
%c.2 = icmp ult i32 %x, 9
%res.1 = xor i1 %t.1, %c.2
ret i1 %res.1
exit.2:
%t.2 = icmp ult i32 %x, 10
%c.3 = icmp ult i32 %x, 9
%res.2 = xor i1 %t.2, %c.3
ret i1 %res.2
}
declare void @llvm.assume(i1)
|
