1*9880d681SAndroid Build Coastguard Worker; RUN: llc -march=x86 -asm-verbose=false < %s | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker 3*9880d681SAndroid Build Coastguard Worker; Check that merging switch cases that differ in one bit works. 4*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: test1 5*9880d681SAndroid Build Coastguard Worker; CHECK: orl $2 6*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: cmpl $6 7*9880d681SAndroid Build Coastguard Worker 8*9880d681SAndroid Build Coastguard Workerdefine void @test1(i32 %variable) nounwind { 9*9880d681SAndroid Build Coastguard Workerentry: 10*9880d681SAndroid Build Coastguard Worker switch i32 %variable, label %if.end [ 11*9880d681SAndroid Build Coastguard Worker i32 4, label %if.then 12*9880d681SAndroid Build Coastguard Worker i32 6, label %if.then 13*9880d681SAndroid Build Coastguard Worker ] 14*9880d681SAndroid Build Coastguard Worker 15*9880d681SAndroid Build Coastguard Workerif.then: 16*9880d681SAndroid Build Coastguard Worker %call = tail call i32 (...) @bar() nounwind 17*9880d681SAndroid Build Coastguard Worker ret void 18*9880d681SAndroid Build Coastguard Worker 19*9880d681SAndroid Build Coastguard Workerif.end: 20*9880d681SAndroid Build Coastguard Worker ret void 21*9880d681SAndroid Build Coastguard Worker} 22*9880d681SAndroid Build Coastguard Worker 23*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: test2 24*9880d681SAndroid Build Coastguard Worker; CHECK: orl $-2147483648 25*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: cmpl $-2147483648 26*9880d681SAndroid Build Coastguard Workerdefine void @test2(i32 %variable) nounwind { 27*9880d681SAndroid Build Coastguard Workerentry: 28*9880d681SAndroid Build Coastguard Worker switch i32 %variable, label %if.end [ 29*9880d681SAndroid Build Coastguard Worker i32 0, label %if.then 30*9880d681SAndroid Build Coastguard Worker i32 -2147483648, label %if.then 31*9880d681SAndroid Build Coastguard Worker ] 32*9880d681SAndroid Build Coastguard Worker 33*9880d681SAndroid Build Coastguard Workerif.then: 34*9880d681SAndroid Build Coastguard Worker %call = tail call i32 (...) @bar() nounwind 35*9880d681SAndroid Build Coastguard Worker ret void 36*9880d681SAndroid Build Coastguard Worker 37*9880d681SAndroid Build Coastguard Workerif.end: 38*9880d681SAndroid Build Coastguard Worker ret void 39*9880d681SAndroid Build Coastguard Worker} 40*9880d681SAndroid Build Coastguard Worker 41*9880d681SAndroid Build Coastguard Workerdeclare i32 @bar(...) nounwind 42