81 lines
3.1 KiB
LLVM
81 lines
3.1 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; 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 -mtriple=x86_64-- -mcpu=atom -enable-misched=false -post-RA-scheduler -pre-RA-sched=list-burr -break-anti-dependencies=none | FileCheck %s --check-prefix=none
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; RUN: llc < %s -mtriple=x86_64-- -mcpu=atom -post-RA-scheduler -break-anti-dependencies=critical | FileCheck %s --check-prefix=critical
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define void @goo(double* %r, double* %p, double* %q) nounwind {
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; none-LABEL: goo:
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; none: # %bb.0: # %entry
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; none-NEXT: movsd {{.*#+}} xmm0 = mem[0],zero
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; none-NEXT: addsd {{.*}}(%rip), %xmm0
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; none-NEXT: mulsd {{.*}}(%rip), %xmm0
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; none-NEXT: addsd {{.*}}(%rip), %xmm0
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; none-NEXT: mulsd {{.*}}(%rip), %xmm0
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; none-NEXT: addsd {{.*}}(%rip), %xmm0
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; none-NEXT: cvttsd2si %xmm0, %eax
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; none-NEXT: movsd {{.*#+}} xmm0 = mem[0],zero
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; none-NEXT: addsd {{.*}}(%rip), %xmm0
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; none-NEXT: mulsd {{.*}}(%rip), %xmm0
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; none-NEXT: addsd {{.*}}(%rip), %xmm0
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; none-NEXT: mulsd {{.*}}(%rip), %xmm0
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; none-NEXT: addsd {{.*}}(%rip), %xmm0
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; none-NEXT: cvttsd2si %xmm0, %ecx
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; none-NEXT: cmpl %eax, %ecx
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; none-NEXT: jge .LBB0_2
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; none-NEXT: # %bb.1: # %bb
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; none-NEXT: movabsq $4621425052621576602, %rax # imm = 0x402299999999999A
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; none-NEXT: movq %rax, (%rdx)
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; none-NEXT: .LBB0_2: # %return
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; none-NEXT: retq
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;
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; critical-LABEL: goo:
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; critical: # %bb.0: # %entry
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; critical-NEXT: movsd {{.*#+}} xmm0 = mem[0],zero
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; critical-NEXT: movsd {{.*#+}} xmm1 = mem[0],zero
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; critical-NEXT: addsd {{.*}}(%rip), %xmm0
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; critical-NEXT: addsd {{.*}}(%rip), %xmm1
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; critical-NEXT: mulsd {{.*}}(%rip), %xmm0
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; critical-NEXT: mulsd {{.*}}(%rip), %xmm1
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; critical-NEXT: addsd {{.*}}(%rip), %xmm0
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; critical-NEXT: addsd {{.*}}(%rip), %xmm1
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; critical-NEXT: mulsd {{.*}}(%rip), %xmm0
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; critical-NEXT: mulsd {{.*}}(%rip), %xmm1
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; critical-NEXT: addsd {{.*}}(%rip), %xmm0
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; critical-NEXT: addsd {{.*}}(%rip), %xmm1
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; critical-NEXT: cvttsd2si %xmm0, %eax
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; critical-NEXT: cvttsd2si %xmm1, %ecx
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; critical-NEXT: cmpl %ecx, %eax
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; critical-NEXT: jge .LBB0_2
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; critical-NEXT: # %bb.1: # %bb
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; critical-NEXT: movabsq $4621425052621576602, %rax # imm = 0x402299999999999A
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; critical-NEXT: movq %rax, (%rdx)
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; critical-NEXT: .LBB0_2: # %return
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; critical-NEXT: retq
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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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