1 ; RUN: llc < %s -mtriple=x86_64-linux-gnu -o - | FileCheck %s 2 3 ; This test checks that only a single jae gets generated in the final code 4 ; for lowering the CMOV pseudos that get created for this IR. The tricky part 5 ; of this test is that it tests the special PHI operand rewriting code in 6 ; X86TargetLowering::EmitLoweredSelect. 7 ; 8 ; CHECK-LABEL: foo1: 9 ; CHECK: jae 10 ; CHECK-NOT: jae 11 define double @foo1(float %p1, double %p2, double %p3) nounwind { 12 entry: 13 %c1 = fcmp oge float %p1, 0.000000e+00 14 %d0 = fadd double %p2, 1.25e0 15 %d1 = fadd double %p3, 1.25e0 16 %d2 = select i1 %c1, double %d0, double %d1 17 %d3 = select i1 %c1, double %d2, double %p2 18 %d4 = select i1 %c1, double %d3, double %p3 19 %d5 = fsub double %d2, %d3 20 %d6 = fadd double %d5, %d4 21 ret double %d6 22 } 23 24 ; This test checks that only a single jae gets generated in the final code 25 ; for lowering the CMOV pseudos that get created for this IR. The tricky part 26 ; of this test is that it tests the special PHI operand rewriting code in 27 ; X86TargetLowering::EmitLoweredSelect. 28 ; 29 ; CHECK-LABEL: foo2: 30 ; CHECK: jae 31 ; CHECK-NOT: jae 32 define double @foo2(float %p1, double %p2, double %p3) nounwind { 33 entry: 34 %c1 = fcmp oge float %p1, 0.000000e+00 35 %d0 = fadd double %p2, 1.25e0 36 %d1 = fadd double %p3, 1.25e0 37 %d2 = select i1 %c1, double %d0, double %d1 38 %d3 = select i1 %c1, double %p2, double %d2 39 %d4 = select i1 %c1, double %p3, double %d3 40 %d5 = fsub double %d2, %d3 41 %d6 = fadd double %d5, %d4 42 ret double %d6 43 } 44 45 ; This test checks that only a single js gets generated in the final code 46 ; for lowering the CMOV pseudos that get created for this IR. The tricky part 47 ; of this test is that it tests the special PHI operand rewriting code in 48 ; X86TargetLowering::EmitLoweredSelect. It also tests to make sure all 49 ; the operands of the resulting instructions are from the proper places. 50 ; 51 ; CHECK-LABEL: foo3: 52 ; CHECK: js 53 ; CHECK-NOT: js 54 ; CHECK-LABEL: # BB#1: 55 ; CHECK-DAG: movapd %xmm2, %xmm1 56 ; CHECK-DAG: movapd %xmm2, %xmm0 57 ; CHECK-LABEL:.LBB2_2: 58 ; CHECK: divsd %xmm1, %xmm0 59 ; CHECK: ret 60 define double @foo3(i32 %p1, double %p2, double %p3, 61 double %p4, double %p5) nounwind { 62 entry: 63 %c1 = icmp slt i32 %p1, 0 64 %d2 = select i1 %c1, double %p2, double %p3 65 %d3 = select i1 %c1, double %p3, double %p4 66 %d4 = select i1 %c1, double %d2, double %d3 67 %d5 = fdiv double %d4, %d3 68 ret double %d5 69 } 70 71 ; This test checks that only a single js gets generated in the final code 72 ; for lowering the CMOV pseudos that get created for this IR. The tricky part 73 ; of this test is that it tests the special PHI operand rewriting code in 74 ; X86TargetLowering::EmitLoweredSelect. It also tests to make sure all 75 ; the operands of the resulting instructions are from the proper places 76 ; when the "opposite condition" handling code in the compiler is used. 77 ; This should be the same code as foo3 above, because we use the opposite 78 ; condition code in the second two selects, but we also swap the operands 79 ; of the selects to give the same actual computation. 80 ; 81 ; CHECK-LABEL: foo4: 82 ; CHECK: js 83 ; CHECK-NOT: js 84 ; CHECK-LABEL: # BB#1: 85 ; CHECK-DAG: movapd %xmm2, %xmm1 86 ; CHECK-DAG: movapd %xmm2, %xmm0 87 ; CHECK-LABEL:.LBB3_2: 88 ; CHECK: divsd %xmm1, %xmm0 89 ; CHECK: ret 90 define double @foo4(i32 %p1, double %p2, double %p3, 91 double %p4, double %p5) nounwind { 92 entry: 93 %c1 = icmp slt i32 %p1, 0 94 %d2 = select i1 %c1, double %p2, double %p3 95 %c2 = icmp sge i32 %p1, 0 96 %d3 = select i1 %c2, double %p4, double %p3 97 %d4 = select i1 %c2, double %d3, double %d2 98 %d5 = fdiv double %d4, %d3 99 ret double %d5 100 } 101
