2 ; RUN: llc < %s -verify-machineinstrs -mtriple=i686-- -mcpu=core2 -pre-RA-sched=source -enable-misched -verify-misched -debug-only=machine-scheduler -o - 2>&1 > /dev/null | FileCheck %s
4 ; Test scheduling of copy instructions.
6 ; Argument copies should be hoisted to the top of the block.
7 ; Return copies should be sunk to the end.
8 ; MUL_HiLo PhysReg use copies should be just above the mul.
9 ; MUL_HiLo PhysReg def copies should be just below the mul.
11 ; CHECK: *** Final schedule for %bb.1 ***
13 ; CHECK-NEXT: MUL32r %{{[0-9]+}}:gr32, implicit-def $eax, implicit-def $edx, implicit-def dead $eflags, implicit $eax
14 ; CHECK-NEXT: COPY $e{{[ad]}}x
15 ; CHECK-NEXT: COPY $e{{[ad]}}x
17 define i64 @mulhoist(i32 %a, i32 %b) #0 {
22 %convb = sitofp i32 %b to float
23 ; Generates an iMUL64r to legalize types.
24 %aa = zext i32 %a to i64
25 %mul = mul i64 %aa, 74383
26 ; Do some dependent long latency stuff.
27 %trunc = trunc i64 %mul to i32
28 %convm = sitofp i32 %trunc to float
29 %divm = fdiv float %convm, 0.75
30 ;%addmb = fadd float %divm, %convb
31 ;%divmb = fdiv float %addmb, 0.125
32 ; Do some independent long latency stuff.
33 %conva = sitofp i32 %a to float
34 %diva = fdiv float %conva, 0.75
35 %addab = fadd float %diva, %convb
36 %divab = fdiv float %addab, 0.125
40 %val = fptosi float %divab to i64
41 %add = add i64 %mul, %val
45 attributes #0 = { nounwind ssp uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
48 !1 = !{!"omnipotent char", !2}
49 !2 = !{!"Simple C/C++ TBAA"}