37 lines
1.3 KiB
LLVM
37 lines
1.3 KiB
LLVM
; Without list-burr scheduling we may not see the difference in codegen here.
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; Use a subtarget that has post-RA scheduling enabled because the anti-dependency
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; breaker requires liveness information to be kept.
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; RUN: llc < %s -march=x86-64 -mcpu=atom -enable-misched=false -post-RA-scheduler -pre-RA-sched=list-burr -break-anti-dependencies=none > %t
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; RUN: grep "%xmm0" %t | count 14
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; RUN: not grep "%xmm1" %t
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; RUN: llc < %s -march=x86-64 -mcpu=atom -post-RA-scheduler -break-anti-dependencies=critical > %t
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; RUN: grep "%xmm0" %t | count 7
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; RUN: grep "%xmm1" %t | count 7
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define void @goo(double* %r, double* %p, double* %q) nounwind {
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entry:
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%0 = load double, double* %p, align 8
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%1 = fadd double %0, 1.100000e+00
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%2 = fmul double %1, 1.200000e+00
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%3 = fadd double %2, 1.300000e+00
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%4 = fmul double %3, 1.400000e+00
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%5 = fadd double %4, 1.500000e+00
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%6 = fptosi double %5 to i32
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%7 = load double, double* %r, align 8
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%8 = fadd double %7, 7.100000e+00
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%9 = fmul double %8, 7.200000e+00
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%10 = fadd double %9, 7.300000e+00
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%11 = fmul double %10, 7.400000e+00
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%12 = fadd double %11, 7.500000e+00
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%13 = fptosi double %12 to i32
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%14 = icmp slt i32 %6, %13
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br i1 %14, label %bb, label %return
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bb:
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store double 9.300000e+00, double* %q, align 8
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ret void
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return:
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ret void
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}
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