247 lines
9.2 KiB
LLVM
247 lines
9.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=x86_64-linux-gnu -o - | FileCheck %s
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; This test checks that only a single jae gets generated in the final code
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; for lowering the CMOV pseudos that get created for this IR. The tricky part
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; of this test is that it tests the special PHI operand rewriting code in
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; X86TargetLowering::EmitLoweredSelect.
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;
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define double @foo1(float %p1, double %p2, double %p3) nounwind {
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entry:
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%c1 = fcmp oge float %p1, 0.000000e+00
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%d0 = fadd double %p2, 1.25e0
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%d1 = fadd double %p3, 1.25e0
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%d2 = select i1 %c1, double %d0, double %d1
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%d3 = select i1 %c1, double %d2, double %p2
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%d4 = select i1 %c1, double %d3, double %p3
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%d5 = fsub double %d2, %d3
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%d6 = fadd double %d5, %d4
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ret double %d6
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}
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; This test checks that only a single jae gets generated in the final code
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; for lowering the CMOV pseudos that get created for this IR. The tricky part
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; of this test is that it tests the special PHI operand rewriting code in
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; X86TargetLowering::EmitLoweredSelect.
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;
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define double @foo2(float %p1, double %p2, double %p3) nounwind {
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; CHECK-LABEL: foo2:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: xorps %xmm3, %xmm3
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; CHECK-NEXT: ucomiss %xmm3, %xmm0
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; CHECK-NEXT: movsd {{.*#+}} xmm0 = mem[0],zero
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; CHECK-NEXT: jae .LBB1_1
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; CHECK-NEXT: # %bb.2: # %entry
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; CHECK-NEXT: addsd %xmm0, %xmm2
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; CHECK-NEXT: movapd %xmm2, %xmm0
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; CHECK-NEXT: movapd %xmm2, %xmm1
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; CHECK-NEXT: jmp .LBB1_3
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; CHECK-NEXT: .LBB1_1:
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; CHECK-NEXT: addsd %xmm1, %xmm0
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; CHECK-NEXT: .LBB1_3: # %entry
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; CHECK-NEXT: subsd %xmm1, %xmm0
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; CHECK-NEXT: addsd %xmm2, %xmm0
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; CHECK-NEXT: retq
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entry:
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%c1 = fcmp oge float %p1, 0.000000e+00
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%d0 = fadd double %p2, 1.25e0
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%d1 = fadd double %p3, 1.25e0
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%d2 = select i1 %c1, double %d0, double %d1
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%d3 = select i1 %c1, double %p2, double %d2
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%d4 = select i1 %c1, double %p3, double %d3
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%d5 = fsub double %d2, %d3
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%d6 = fadd double %d5, %d4
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ret double %d6
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}
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; This test checks that only a single js gets generated in the final code
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; for lowering the CMOV pseudos that get created for this IR. The tricky part
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; of this test is that it tests the special PHI operand rewriting code in
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; X86TargetLowering::EmitLoweredSelect. It also tests to make sure all
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; the operands of the resulting instructions are from the proper places.
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;
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define double @foo3(i32 %p1, double %p2, double %p3,
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; CHECK-LABEL: foo3:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: testl %edi, %edi
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; CHECK-NEXT: js .LBB2_2
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; CHECK-NEXT: # %bb.1: # %entry
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; CHECK-NEXT: movapd %xmm2, %xmm1
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; CHECK-NEXT: movapd %xmm2, %xmm0
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; CHECK-NEXT: .LBB2_2: # %entry
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; CHECK-NEXT: divsd %xmm1, %xmm0
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; CHECK-NEXT: retq
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double %p4, double %p5) nounwind {
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entry:
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%c1 = icmp slt i32 %p1, 0
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%d2 = select i1 %c1, double %p2, double %p3
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%d3 = select i1 %c1, double %p3, double %p4
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%d4 = select i1 %c1, double %d2, double %d3
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%d5 = fdiv double %d4, %d3
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ret double %d5
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}
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; This test checks that only a single js gets generated in the final code
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; for lowering the CMOV pseudos that get created for this IR. The tricky part
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; of this test is that it tests the special PHI operand rewriting code in
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; X86TargetLowering::EmitLoweredSelect. It also tests to make sure all
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; the operands of the resulting instructions are from the proper places
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; when the "opposite condition" handling code in the compiler is used.
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; This should be the same code as foo3 above, because we use the opposite
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; condition code in the second two selects, but we also swap the operands
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; of the selects to give the same actual computation.
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;
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define double @foo4(i32 %p1, double %p2, double %p3,
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; CHECK-LABEL: foo4:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: testl %edi, %edi
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; CHECK-NEXT: js .LBB3_2
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; CHECK-NEXT: # %bb.1: # %entry
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; CHECK-NEXT: movapd %xmm2, %xmm1
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; CHECK-NEXT: movapd %xmm2, %xmm0
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; CHECK-NEXT: .LBB3_2: # %entry
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; CHECK-NEXT: divsd %xmm1, %xmm0
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; CHECK-NEXT: retq
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double %p4, double %p5) nounwind {
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entry:
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%c1 = icmp slt i32 %p1, 0
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%d2 = select i1 %c1, double %p2, double %p3
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%c2 = icmp sge i32 %p1, 0
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%d3 = select i1 %c2, double %p4, double %p3
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%d4 = select i1 %c2, double %d3, double %d2
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%d5 = fdiv double %d4, %d3
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ret double %d5
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}
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; This test checks that only a single jae gets generated in the final code
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; for lowering the CMOV pseudos that get created for this IR. The tricky part
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; of this test is that it tests the special code in CodeGenPrepare.
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;
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define double @foo5(float %p1, double %p2, double %p3) nounwind {
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; CHECK-LABEL: foo5:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: xorps %xmm3, %xmm3
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; CHECK-NEXT: ucomiss %xmm3, %xmm0
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; CHECK-NEXT: movsd {{.*#+}} xmm0 = mem[0],zero
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; CHECK-NEXT: jae .LBB4_1
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; CHECK-NEXT: # %bb.2: # %select.false
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; CHECK-NEXT: addsd %xmm2, %xmm0
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; CHECK-NEXT: .LBB4_3: # %select.end
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; CHECK-NEXT: subsd %xmm1, %xmm0
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; CHECK-NEXT: addsd %xmm2, %xmm0
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; CHECK-NEXT: retq
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; CHECK-NEXT: .LBB4_1:
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; CHECK-NEXT: addsd %xmm0, %xmm1
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; CHECK-NEXT: movapd %xmm1, %xmm0
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; CHECK-NEXT: movapd %xmm1, %xmm2
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; CHECK-NEXT: jmp .LBB4_3
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entry:
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%c1 = fcmp oge float %p1, 0.000000e+00
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%d0 = fadd double %p2, 1.25e0
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%d1 = fadd double %p3, 1.25e0
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%d2 = select i1 %c1, double %d0, double %d1, !prof !0
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%d3 = select i1 %c1, double %d2, double %p2, !prof !0
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%d4 = select i1 %c1, double %d3, double %p3, !prof !0
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%d5 = fsub double %d2, %d3
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%d6 = fadd double %d5, %d4
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ret double %d6
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}
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; We should expand select instructions into 3 conditional branches as their
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; condtions are different.
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;
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define double @foo6(float %p1, double %p2, double %p3) nounwind {
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; CHECK-LABEL: foo6:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: movaps %xmm0, %xmm3
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; CHECK-NEXT: xorps %xmm0, %xmm0
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; CHECK-NEXT: ucomiss %xmm0, %xmm3
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; CHECK-NEXT: movsd {{.*#+}} xmm0 = mem[0],zero
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; CHECK-NEXT: jae .LBB5_1
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; CHECK-NEXT: # %bb.2: # %select.false
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; CHECK-NEXT: addsd %xmm2, %xmm0
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; CHECK-NEXT: .LBB5_3: # %select.end
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; CHECK-NEXT: ucomiss {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm3
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; CHECK-NEXT: movapd %xmm0, %xmm4
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; CHECK-NEXT: jae .LBB5_5
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; CHECK-NEXT: # %bb.4: # %select.false2
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; CHECK-NEXT: movapd %xmm1, %xmm4
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; CHECK-NEXT: .LBB5_5: # %select.end1
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; CHECK-NEXT: ucomiss {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm3
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; CHECK-NEXT: movapd %xmm4, %xmm1
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; CHECK-NEXT: jae .LBB5_7
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; CHECK-NEXT: # %bb.6: # %select.false4
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; CHECK-NEXT: movapd %xmm2, %xmm1
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; CHECK-NEXT: .LBB5_7: # %select.end3
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; CHECK-NEXT: subsd %xmm4, %xmm0
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; CHECK-NEXT: addsd %xmm1, %xmm0
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; CHECK-NEXT: retq
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; CHECK-NEXT: .LBB5_1:
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; CHECK-NEXT: addsd %xmm1, %xmm0
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; CHECK-NEXT: jmp .LBB5_3
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entry:
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%c1 = fcmp oge float %p1, 0.000000e+00
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%c2 = fcmp oge float %p1, 1.000000e+00
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%c3 = fcmp oge float %p1, 2.000000e+00
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%d0 = fadd double %p2, 1.25e0
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%d1 = fadd double %p3, 1.25e0
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%d2 = select i1 %c1, double %d0, double %d1, !prof !0
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%d3 = select i1 %c2, double %d2, double %p2, !prof !0
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%d4 = select i1 %c3, double %d3, double %p3, !prof !0
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%d5 = fsub double %d2, %d3
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%d6 = fadd double %d5, %d4
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ret double %d6
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}
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declare void @llvm.dbg.value(metadata, metadata, metadata)
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; Like the test for @foo1, but check that the inserted dbg.value does not
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; affect codegen. The CHECK items below should always be identical to @foo1,
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; minus the DEBUG_VALUE line and changes in labels..
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define double @foo1_g(float %p1, double %p2, double %p3) nounwind !dbg !4 {
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; CHECK-LABEL: foo1_g:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: xorps %xmm3, %xmm3
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; CHECK-NEXT: ucomiss %xmm3, %xmm0
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; CHECK-NEXT: movsd {{.*#+}} xmm0 = mem[0],zero
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; CHECK-NEXT: jae .LBB6_1
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; CHECK-NEXT: # %bb.2: # %entry
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; CHECK-NEXT: addsd %xmm2, %xmm0
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; CHECK-NEXT: jmp .LBB6_3
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; CHECK-NEXT: .LBB6_1:
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; CHECK-NEXT: addsd %xmm0, %xmm1
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; CHECK-NEXT: movapd %xmm1, %xmm0
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; CHECK-NEXT: movapd %xmm1, %xmm2
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; CHECK-NEXT: .LBB6_3: # %entry
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; CHECK-NEXT: #DEBUG_VALUE: foobar:xyzzy <- undef
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; CHECK-NEXT: subsd %xmm1, %xmm0
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; CHECK-NEXT: addsd %xmm2, %xmm0
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; CHECK-NEXT: retq
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entry:
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%c1 = fcmp oge float %p1, 0.000000e+00
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%d0 = fadd double %p2, 1.25e0
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%d1 = fadd double %p3, 1.25e0
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%d2 = select i1 %c1, double %d0, double %d1
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call void @llvm.dbg.value(metadata float undef, metadata !5, metadata !DIExpression()), !dbg !6
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%d3 = select i1 %c1, double %d2, double %p2
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%d4 = select i1 %c1, double %d3, double %p3
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%d5 = fsub double %d2, %d3
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%d6 = fadd double %d5, %d4
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ret double %d6
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}
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!llvm.module.flags = !{!1}
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!llvm.dbg.cu = !{!2}
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!0 = !{!"branch_weights", i32 1, i32 2000}
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!1 = !{i32 2, !"Debug Info Version", i32 3}
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!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, nameTableKind: None)
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!3 = !DIFile(filename: "test.c", directory: ".")
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!4 = distinct !DISubprogram(name: "foobar", scope: !2, file: !3, line: 1, type: !9, scopeLine: 3, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !8)
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!5 = !DILocalVariable(name: "xyzzy", scope: !4, file: !3, line: 2, type: !7)
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!6 = !DILocation(line: 1, column: 1, scope: !4)
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!7 = !DIBasicType(name: "float", size: 32, encoding: DW_ATE_float)
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!8 = !{!5}
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!9 = !DISubroutineType(types: !10)
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!10 = !{!7}
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