3 ; FIXME: The following line is a hack to remove any stray files which might have
4 ; been left dangling around by this test. It can be removed once the various
5 ; bots have cycled past this commit.
7 ; RUN: rm -f misched-copy.s %S/misched-copy.s
10 ; RUN: llc < %s -march=x86 -mcpu=core2 -pre-RA-sched=source -enable-misched -verify-misched -debug-only=misched -o - 2>&1 > /dev/null | FileCheck %s
12 ; Test scheduling of copy instructions.
14 ; Argument copies should be hoisted to the top of the block.
15 ; Return copies should be sunk to the end.
16 ; MUL_HiLo PhysReg use copies should be just above the mul.
17 ; MUL_HiLo PhysReg def copies should be just below the mul.
19 ; CHECK: *** Final schedule for BB#1 ***
20 ; CHECK-NEXT: %EAX<def> = COPY
21 ; CHECK: MUL32r %vreg{{[0-9]+}}, %EAX<imp-def>, %EDX<imp-def>, %EFLAGS<imp-def,dead>, %EAX<imp-use>;
22 ; CHECK-NEXT: COPY %E{{[AD]}}X;
23 ; CHECK-NEXT: COPY %E{{[AD]}}X;
25 define i64 @mulhoist(i32 %a, i32 %b) #0 {
30 %convb = sitofp i32 %b to float
31 ; Generates an iMUL64r to legalize types.
32 %aa = zext i32 %a to i64
33 %mul = mul i64 %aa, 74383
34 ; Do some dependent long latency stuff.
35 %trunc = trunc i64 %mul to i32
36 %convm = sitofp i32 %trunc to float
37 %divm = fdiv float %convm, 0.75
38 ;%addmb = fadd float %divm, %convb
39 ;%divmb = fdiv float %addmb, 0.125
40 ; Do some independent long latency stuff.
41 %conva = sitofp i32 %a to float
42 %diva = fdiv float %conva, 0.75
43 %addab = fadd float %diva, %convb
44 %divab = fdiv float %addab, 0.125
48 %val = fptosi float %divab to i64
49 %add = add i64 %mul, %val
53 attributes #0 = { nounwind ssp uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-frame-pointer-elim-non-leaf"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
55 !0 = metadata !{metadata !"float", metadata !1}
56 !1 = metadata !{metadata !"omnipotent char", metadata !2}
57 !2 = metadata !{metadata !"Simple C/C++ TBAA"}