xref: /aosp_15_r20/external/llvm/test/Transforms/InstCombine/pr23809.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58) 
1*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -instcombine -S | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Worker; InstCombine should preserve the call to @llvm.assume.
4*9880d681SAndroid Build Coastguard Workerdefine i32 @icmp(i32 %a, i32 %b) {
5*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @icmp(
6*9880d681SAndroid Build Coastguard Worker  %sum = add i32 %a, %b
7*9880d681SAndroid Build Coastguard Worker  %1 = icmp sge i32 %sum, 0
8*9880d681SAndroid Build Coastguard Worker  call void @llvm.assume(i1 %1)
9*9880d681SAndroid Build Coastguard Worker; CHECK: call void @llvm.assume
10*9880d681SAndroid Build Coastguard Worker  ret i32 %sum
11*9880d681SAndroid Build Coastguard Worker}
12*9880d681SAndroid Build Coastguard Worker
13*9880d681SAndroid Build Coastguard Workerdefine float @fcmp(float %a, float %b) {
14*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @fcmp(
15*9880d681SAndroid Build Coastguard Worker  %sum = fadd float %a, %b
16*9880d681SAndroid Build Coastguard Worker  %1 = fcmp oge float %sum, 0.0
17*9880d681SAndroid Build Coastguard Worker  call void @llvm.assume(i1 %1)
18*9880d681SAndroid Build Coastguard Worker; CHECK: call void @llvm.assume
19*9880d681SAndroid Build Coastguard Worker  ret float %sum
20*9880d681SAndroid Build Coastguard Worker}
21*9880d681SAndroid Build Coastguard Worker
22*9880d681SAndroid Build Coastguard Workerdeclare void @llvm.assume(i1)
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