| ; RUN: llc < %s -O3 -mtriple=x86_64-- |FileCheck %s | |
| define i64 @foo(i64 %data1, i64 %data2, i64 %data3) | |
| { | |
| ; If constant 4294967295 is hoisted to a variable, then we won't be able to | |
| ; use a shift right by 32 to optimize the compare. | |
| entry: | |
| %val1 = add i64 %data3, 1 | |
| %x = icmp ugt i64 %data1, 4294967295 | |
| br i1 %x, label %End, label %L_val2 | |
| ; CHECK: shrq $32, {{.*}} | |
| ; CHECK: shrq $32, {{.*}} | |
| L_val2: | |
| %val2 = add i64 %data3, 2 | |
| %y = icmp ugt i64 %data2, 4294967295 | |
| br i1 %y, label %End, label %L_val3 | |
| L_val3: | |
| %val3 = add i64 %data3, 3 | |
| br label %End | |
| End: | |
| %p1 = phi i64 [%val1,%entry], [%val2,%L_val2], [%val3,%L_val3] | |
| ret i64 %p1 | |
| } |