; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; Without list-burr scheduling we may not see the difference in codegen here. ; Use a subtarget that has post-RA scheduling enabled because the anti-dependency ; breaker requires liveness information to be kept. ; 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 ; RUN: llc < %s -mtriple=x86_64-- -mcpu=atom -post-RA-scheduler -break-anti-dependencies=critical | FileCheck %s --check-prefix=critical define void @goo(double* %r, double* %p, double* %q) nounwind { ; none-LABEL: goo: ; none: # %bb.0: # %entry ; none-NEXT: movsd {{.*#+}} xmm0 = mem[0],zero ; none-NEXT: addsd {{.*}}(%rip), %xmm0 ; none-NEXT: mulsd {{.*}}(%rip), %xmm0 ; none-NEXT: addsd {{.*}}(%rip), %xmm0 ; none-NEXT: mulsd {{.*}}(%rip), %xmm0 ; none-NEXT: addsd {{.*}}(%rip), %xmm0 ; none-NEXT: cvttsd2si %xmm0, %eax ; none-NEXT: movsd {{.*#+}} xmm0 = mem[0],zero ; none-NEXT: addsd {{.*}}(%rip), %xmm0 ; none-NEXT: mulsd {{.*}}(%rip), %xmm0 ; none-NEXT: addsd {{.*}}(%rip), %xmm0 ; none-NEXT: mulsd {{.*}}(%rip), %xmm0 ; none-NEXT: addsd {{.*}}(%rip), %xmm0 ; none-NEXT: cvttsd2si %xmm0, %ecx ; none-NEXT: cmpl %eax, %ecx ; none-NEXT: jge .LBB0_2 ; none-NEXT: # %bb.1: # %bb ; none-NEXT: movabsq $4621425052621576602, %rax # imm = 0x402299999999999A ; none-NEXT: movq %rax, (%rdx) ; none-NEXT: .LBB0_2: # %return ; none-NEXT: retq ; ; critical-LABEL: goo: ; critical: # %bb.0: # %entry ; critical-NEXT: movsd {{.*#+}} xmm0 = mem[0],zero ; critical-NEXT: movsd {{.*#+}} xmm1 = mem[0],zero ; critical-NEXT: addsd {{.*}}(%rip), %xmm0 ; critical-NEXT: addsd {{.*}}(%rip), %xmm1 ; critical-NEXT: mulsd {{.*}}(%rip), %xmm0 ; critical-NEXT: mulsd {{.*}}(%rip), %xmm1 ; critical-NEXT: addsd {{.*}}(%rip), %xmm0 ; critical-NEXT: addsd {{.*}}(%rip), %xmm1 ; critical-NEXT: mulsd {{.*}}(%rip), %xmm0 ; critical-NEXT: mulsd {{.*}}(%rip), %xmm1 ; critical-NEXT: addsd {{.*}}(%rip), %xmm0 ; critical-NEXT: addsd {{.*}}(%rip), %xmm1 ; critical-NEXT: cvttsd2si %xmm0, %eax ; critical-NEXT: cvttsd2si %xmm1, %ecx ; critical-NEXT: cmpl %ecx, %eax ; critical-NEXT: jge .LBB0_2 ; critical-NEXT: # %bb.1: # %bb ; critical-NEXT: movabsq $4621425052621576602, %rax # imm = 0x402299999999999A ; critical-NEXT: movq %rax, (%rdx) ; critical-NEXT: .LBB0_2: # %return ; critical-NEXT: retq entry: %0 = load double, double* %p, align 8 %1 = fadd double %0, 1.100000e+00 %2 = fmul double %1, 1.200000e+00 %3 = fadd double %2, 1.300000e+00 %4 = fmul double %3, 1.400000e+00 %5 = fadd double %4, 1.500000e+00 %6 = fptosi double %5 to i32 %7 = load double, double* %r, align 8 %8 = fadd double %7, 7.100000e+00 %9 = fmul double %8, 7.200000e+00 %10 = fadd double %9, 7.300000e+00 %11 = fmul double %10, 7.400000e+00 %12 = fadd double %11, 7.500000e+00 %13 = fptosi double %12 to i32 %14 = icmp slt i32 %6, %13 br i1 %14, label %bb, label %return bb: store double 9.300000e+00, double* %q, align 8 ret void return: ret void }