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