1 ; RUN: llc < %s -mcpu=generic -march=x86 -mattr=+sse | FileCheck %s 2 3 define float @chainfail1(i64* nocapture %a, i64* nocapture %b, i32 %x, i32 %y, float* nocapture %f) nounwind uwtable noinline ssp { 4 entry: 5 %tmp1 = load i64, i64* %a, align 8 6 ; Insure x87 ops are properly chained, order preserved. 7 ; CHECK: fildll 8 %conv = sitofp i64 %tmp1 to float 9 ; CHECK: fstps 10 store float %conv, float* %f, align 4 11 ; CHECK: idivl 12 %div = sdiv i32 %x, %y 13 %conv5 = sext i32 %div to i64 14 store i64 %conv5, i64* %b, align 8 15 ret float %conv 16 } 17 18 define float @chainfail2(i64* nocapture %a, i64* nocapture %b, i32 %x, i32 %y, float* nocapture %f) nounwind uwtable noinline ssp { 19 entry: 20 ; CHECK: movl $0, 21 store i64 0, i64* %b, align 8 22 %mul = mul nsw i32 %y, %x 23 %sub = add nsw i32 %mul, -1 24 %idxprom = sext i32 %sub to i64 25 %arrayidx = getelementptr inbounds i64, i64* %a, i64 %idxprom 26 %tmp4 = load i64, i64* %arrayidx, align 8 27 ; CHECK: fildll 28 %conv = sitofp i64 %tmp4 to float 29 store float %conv, float* %f, align 4 30 ret float %conv 31 } 32 33 define void @PR17495() { 34 entry: 35 br i1 undef, label %while.end, label %while.body 36 37 while.body: ; preds = %while.body, %entry 38 %x.1.copyload = load i24, i24* undef, align 1 39 %conv = sitofp i24 %x.1.copyload to float 40 %div = fmul float %conv, 0x3E80000000000000 41 store float %div, float* undef, align 4 42 br i1 false, label %while.end, label %while.body 43 44 while.end: ; preds = %while.body, %entry 45 ret void 46 47 ; CHECK-LABEL: @PR17495 48 ; CHECK-NOT: fildll 49 } 50
