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