1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2 ; RUN: llc -mtriple=x86_64-unknown-unknown -x86-early-ifcvt -debug-only=early-ifcvt < %s 2>&1 | FileCheck %s
5 ; This test case ensures that machine trace metrics properly calculates
6 ; instructions heights and the trace's critical path for the entry block when
7 ; MinInstr strategy is used. The behavior is demonstrated on early if conversion
10 ; CHECK: TBB: MinInstr trace %bb.0 --> %bb.0 --> %bb.2: 8 instrs. 30 cycles.
14 ; CHECK: FBB: MinInstr trace %bb.0 --> %bb.1 --> %bb.2: 10 instrs. 32 cycles.
15 ; CHECK: %bb.1 <- %bb.0
18 ; CHECK: Resource length 10, minimal critical path 30
19 ; CHECK: If-converting
21 define i32 @_Z3fooiidd(i32 %a, i32 %b, double %d, double %e) #0 {
22 ; CHECK-LABEL: _Z3fooiidd:
23 ; CHECK: # %bb.0: # %entry
24 ; CHECK-NEXT: # kill: def $esi killed $esi def $rsi
25 ; CHECK-NEXT: # kill: def $edi killed $edi def $rdi
26 ; CHECK-NEXT: leal (%rsi,%rdi), %ecx
27 ; CHECK-NEXT: cvttsd2si %xmm0, %eax
28 ; CHECK-NEXT: addl %ecx, %eax
29 ; CHECK-NEXT: cmpl $3, %edi
30 ; CHECK-NEXT: cmovll %ecx, %eax
31 ; CHECK-NEXT: cvttsd2si %xmm1, %ecx
33 ; CHECK-NEXT: idivl %ecx
36 %add = add nsw i32 %b, %a
37 %cmp = icmp sgt i32 %a, 2
38 br i1 %cmp, label %if.then, label %if.end
41 %conv = fptosi double %d to i32
42 %add1 = add nsw i32 %add, %conv
46 %tmp.0 = phi i32 [ %add1, %if.then ], [ %add, %entry ]
47 %conv2 = fptosi double %e to i32
48 %div = sdiv i32 %tmp.0, %conv2
52 attributes #0 = { "tune-cpu"="generic" }