; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc < %s -mtriple=arm64-eabi -verify-machineinstrs | FileCheck %s define i32 @ldp_int(i32* %p) nounwind { ; CHECK-LABEL: ldp_int: ; CHECK: // %bb.0: ; CHECK-NEXT: ldp w8, w9, [x0] ; CHECK-NEXT: add w0, w9, w8 ; CHECK-NEXT: ret %tmp = load i32, i32* %p, align 4 %add.ptr = getelementptr inbounds i32, i32* %p, i64 1 %tmp1 = load i32, i32* %add.ptr, align 4 %add = add nsw i32 %tmp1, %tmp ret i32 %add } define i64 @ldp_sext_int(i32* %p) nounwind { ; CHECK-LABEL: ldp_sext_int: ; CHECK: // %bb.0: ; CHECK-NEXT: ldpsw x8, x9, [x0] ; CHECK-NEXT: add x0, x9, x8 ; CHECK-NEXT: ret %tmp = load i32, i32* %p, align 4 %add.ptr = getelementptr inbounds i32, i32* %p, i64 1 %tmp1 = load i32, i32* %add.ptr, align 4 %sexttmp = sext i32 %tmp to i64 %sexttmp1 = sext i32 %tmp1 to i64 %add = add nsw i64 %sexttmp1, %sexttmp ret i64 %add } define i64 @ldp_half_sext_res0_int(i32* %p) nounwind { ; CHECK-LABEL: ldp_half_sext_res0_int: ; CHECK: // %bb.0: ; CHECK-NEXT: ldp w8, w9, [x0] ; CHECK-NEXT: // kill: def $w8 killed $w8 def $x8 ; CHECK-NEXT: sxtw x8, w8 ; CHECK-NEXT: add x0, x9, x8 ; CHECK-NEXT: ret %tmp = load i32, i32* %p, align 4 %add.ptr = getelementptr inbounds i32, i32* %p, i64 1 %tmp1 = load i32, i32* %add.ptr, align 4 %sexttmp = sext i32 %tmp to i64 %sexttmp1 = zext i32 %tmp1 to i64 %add = add nsw i64 %sexttmp1, %sexttmp ret i64 %add } define i64 @ldp_half_sext_res1_int(i32* %p) nounwind { ; CHECK-LABEL: ldp_half_sext_res1_int: ; CHECK: // %bb.0: ; CHECK-NEXT: ldp w8, w9, [x0] ; CHECK-NEXT: // kill: def $w9 killed $w9 def $x9 ; CHECK-NEXT: sxtw x9, w9 ; CHECK-NEXT: add x0, x9, x8 ; CHECK-NEXT: ret %tmp = load i32, i32* %p, align 4 %add.ptr = getelementptr inbounds i32, i32* %p, i64 1 %tmp1 = load i32, i32* %add.ptr, align 4 %sexttmp = zext i32 %tmp to i64 %sexttmp1 = sext i32 %tmp1 to i64 %add = add nsw i64 %sexttmp1, %sexttmp ret i64 %add } define i64 @ldp_long(i64* %p) nounwind { ; CHECK-LABEL: ldp_long: ; CHECK: // %bb.0: ; CHECK-NEXT: ldp x8, x9, [x0] ; CHECK-NEXT: add x0, x9, x8 ; CHECK-NEXT: ret %tmp = load i64, i64* %p, align 8 %add.ptr = getelementptr inbounds i64, i64* %p, i64 1 %tmp1 = load i64, i64* %add.ptr, align 8 %add = add nsw i64 %tmp1, %tmp ret i64 %add } define float @ldp_float(float* %p) nounwind { ; CHECK-LABEL: ldp_float: ; CHECK: // %bb.0: ; CHECK-NEXT: ldp s0, s1, [x0] ; CHECK-NEXT: fadd s0, s0, s1 ; CHECK-NEXT: ret %tmp = load float, float* %p, align 4 %add.ptr = getelementptr inbounds float, float* %p, i64 1 %tmp1 = load float, float* %add.ptr, align 4 %add = fadd float %tmp, %tmp1 ret float %add } define double @ldp_double(double* %p) nounwind { ; CHECK-LABEL: ldp_double: ; CHECK: // %bb.0: ; CHECK-NEXT: ldp d0, d1, [x0] ; CHECK-NEXT: fadd d0, d0, d1 ; CHECK-NEXT: ret %tmp = load double, double* %p, align 8 %add.ptr = getelementptr inbounds double, double* %p, i64 1 %tmp1 = load double, double* %add.ptr, align 8 %add = fadd double %tmp, %tmp1 ret double %add } define <2 x double> @ldp_doublex2(<2 x double>* %p) nounwind { ; CHECK-LABEL: ldp_doublex2: ; CHECK: // %bb.0: ; CHECK-NEXT: ldp q0, q1, [x0] ; CHECK-NEXT: fadd v0.2d, v0.2d, v1.2d ; CHECK-NEXT: ret %tmp = load <2 x double>, <2 x double>* %p, align 16 %add.ptr = getelementptr inbounds <2 x double>, <2 x double>* %p, i64 1 %tmp1 = load <2 x double>, <2 x double>* %add.ptr, align 16 %add = fadd <2 x double> %tmp, %tmp1 ret <2 x double> %add } ; Test the load/store optimizer---combine ldurs into a ldp, if appropriate define i32 @ldur_int(i32* %a) nounwind { ; CHECK-LABEL: ldur_int: ; CHECK: // %bb.0: ; CHECK-NEXT: ldp w9, w8, [x0, #-8] ; CHECK-NEXT: add w0, w8, w9 ; CHECK-NEXT: ret %p1 = getelementptr inbounds i32, i32* %a, i32 -1 %tmp1 = load i32, i32* %p1, align 2 %p2 = getelementptr inbounds i32, i32* %a, i32 -2 %tmp2 = load i32, i32* %p2, align 2 %tmp3 = add i32 %tmp1, %tmp2 ret i32 %tmp3 } define i64 @ldur_sext_int(i32* %a) nounwind { ; CHECK-LABEL: ldur_sext_int: ; CHECK: // %bb.0: ; CHECK-NEXT: ldpsw x9, x8, [x0, #-8] ; CHECK-NEXT: add x0, x8, x9 ; CHECK-NEXT: ret %p1 = getelementptr inbounds i32, i32* %a, i32 -1 %tmp1 = load i32, i32* %p1, align 2 %p2 = getelementptr inbounds i32, i32* %a, i32 -2 %tmp2 = load i32, i32* %p2, align 2 %sexttmp1 = sext i32 %tmp1 to i64 %sexttmp2 = sext i32 %tmp2 to i64 %tmp3 = add i64 %sexttmp1, %sexttmp2 ret i64 %tmp3 } define i64 @ldur_half_sext_int_res0(i32* %a) nounwind { ; CHECK-LABEL: ldur_half_sext_int_res0: ; CHECK: // %bb.0: ; CHECK-NEXT: ldp w9, w8, [x0, #-8] ; CHECK-NEXT: // kill: def $w9 killed $w9 def $x9 ; CHECK-NEXT: sxtw x9, w9 ; CHECK-NEXT: add x0, x8, x9 ; CHECK-NEXT: ret %p1 = getelementptr inbounds i32, i32* %a, i32 -1 %tmp1 = load i32, i32* %p1, align 2 %p2 = getelementptr inbounds i32, i32* %a, i32 -2 %tmp2 = load i32, i32* %p2, align 2 %sexttmp1 = zext i32 %tmp1 to i64 %sexttmp2 = sext i32 %tmp2 to i64 %tmp3 = add i64 %sexttmp1, %sexttmp2 ret i64 %tmp3 } define i64 @ldur_half_sext_int_res1(i32* %a) nounwind { ; CHECK-LABEL: ldur_half_sext_int_res1: ; CHECK: // %bb.0: ; CHECK-NEXT: ldp w9, w8, [x0, #-8] ; CHECK-NEXT: // kill: def $w8 killed $w8 def $x8 ; CHECK-NEXT: sxtw x8, w8 ; CHECK-NEXT: add x0, x8, x9 ; CHECK-NEXT: ret %p1 = getelementptr inbounds i32, i32* %a, i32 -1 %tmp1 = load i32, i32* %p1, align 2 %p2 = getelementptr inbounds i32, i32* %a, i32 -2 %tmp2 = load i32, i32* %p2, align 2 %sexttmp1 = sext i32 %tmp1 to i64 %sexttmp2 = zext i32 %tmp2 to i64 %tmp3 = add i64 %sexttmp1, %sexttmp2 ret i64 %tmp3 } define i64 @ldur_long(i64* %a) nounwind ssp { ; CHECK-LABEL: ldur_long: ; CHECK: // %bb.0: ; CHECK-NEXT: ldp x9, x8, [x0, #-16] ; CHECK-NEXT: add x0, x8, x9 ; CHECK-NEXT: ret %p1 = getelementptr inbounds i64, i64* %a, i64 -1 %tmp1 = load i64, i64* %p1, align 2 %p2 = getelementptr inbounds i64, i64* %a, i64 -2 %tmp2 = load i64, i64* %p2, align 2 %tmp3 = add i64 %tmp1, %tmp2 ret i64 %tmp3 } define float @ldur_float(float* %a) { ; CHECK-LABEL: ldur_float: ; CHECK: // %bb.0: ; CHECK-NEXT: ldp s1, s0, [x0, #-8] ; CHECK-NEXT: fadd s0, s0, s1 ; CHECK-NEXT: ret %p1 = getelementptr inbounds float, float* %a, i64 -1 %tmp1 = load float, float* %p1, align 2 %p2 = getelementptr inbounds float, float* %a, i64 -2 %tmp2 = load float, float* %p2, align 2 %tmp3 = fadd float %tmp1, %tmp2 ret float %tmp3 } define double @ldur_double(double* %a) { ; CHECK-LABEL: ldur_double: ; CHECK: // %bb.0: ; CHECK-NEXT: ldp d1, d0, [x0, #-16] ; CHECK-NEXT: fadd d0, d0, d1 ; CHECK-NEXT: ret %p1 = getelementptr inbounds double, double* %a, i64 -1 %tmp1 = load double, double* %p1, align 2 %p2 = getelementptr inbounds double, double* %a, i64 -2 %tmp2 = load double, double* %p2, align 2 %tmp3 = fadd double %tmp1, %tmp2 ret double %tmp3 } define <2 x double> @ldur_doublex2(<2 x double>* %a) { ; CHECK-LABEL: ldur_doublex2: ; CHECK: // %bb.0: ; CHECK-NEXT: ldp q1, q0, [x0, #-32] ; CHECK-NEXT: fadd v0.2d, v0.2d, v1.2d ; CHECK-NEXT: ret %p1 = getelementptr inbounds <2 x double>, <2 x double>* %a, i64 -1 %tmp1 = load <2 x double>, <2 x double>* %p1, align 2 %p2 = getelementptr inbounds <2 x double>, <2 x double>* %a, i64 -2 %tmp2 = load <2 x double>, <2 x double>* %p2, align 2 %tmp3 = fadd <2 x double> %tmp1, %tmp2 ret <2 x double> %tmp3 } ; Now check some boundary conditions define i64 @pairUpBarelyIn(i64* %a) nounwind ssp { ; CHECK-LABEL: pairUpBarelyIn: ; CHECK: // %bb.0: ; CHECK-NEXT: ldp x9, x8, [x0, #-256] ; CHECK-NEXT: add x0, x8, x9 ; CHECK-NEXT: ret %p1 = getelementptr inbounds i64, i64* %a, i64 -31 %tmp1 = load i64, i64* %p1, align 2 %p2 = getelementptr inbounds i64, i64* %a, i64 -32 %tmp2 = load i64, i64* %p2, align 2 %tmp3 = add i64 %tmp1, %tmp2 ret i64 %tmp3 } define i64 @pairUpBarelyInSext(i32* %a) nounwind ssp { ; CHECK-LABEL: pairUpBarelyInSext: ; CHECK: // %bb.0: ; CHECK-NEXT: ldpsw x9, x8, [x0, #-256] ; CHECK-NEXT: add x0, x8, x9 ; CHECK-NEXT: ret %p1 = getelementptr inbounds i32, i32* %a, i64 -63 %tmp1 = load i32, i32* %p1, align 2 %p2 = getelementptr inbounds i32, i32* %a, i64 -64 %tmp2 = load i32, i32* %p2, align 2 %sexttmp1 = sext i32 %tmp1 to i64 %sexttmp2 = sext i32 %tmp2 to i64 %tmp3 = add i64 %sexttmp1, %sexttmp2 ret i64 %tmp3 } define i64 @pairUpBarelyInHalfSextRes0(i32* %a) nounwind ssp { ; CHECK-LABEL: pairUpBarelyInHalfSextRes0: ; CHECK: // %bb.0: ; CHECK-NEXT: ldp w9, w8, [x0, #-256] ; CHECK-NEXT: // kill: def $w9 killed $w9 def $x9 ; CHECK-NEXT: sxtw x9, w9 ; CHECK-NEXT: add x0, x8, x9 ; CHECK-NEXT: ret %p1 = getelementptr inbounds i32, i32* %a, i64 -63 %tmp1 = load i32, i32* %p1, align 2 %p2 = getelementptr inbounds i32, i32* %a, i64 -64 %tmp2 = load i32, i32* %p2, align 2 %sexttmp1 = zext i32 %tmp1 to i64 %sexttmp2 = sext i32 %tmp2 to i64 %tmp3 = add i64 %sexttmp1, %sexttmp2 ret i64 %tmp3 } define i64 @pairUpBarelyInHalfSextRes1(i32* %a) nounwind ssp { ; CHECK-LABEL: pairUpBarelyInHalfSextRes1: ; CHECK: // %bb.0: ; CHECK-NEXT: ldp w9, w8, [x0, #-256] ; CHECK-NEXT: // kill: def $w8 killed $w8 def $x8 ; CHECK-NEXT: sxtw x8, w8 ; CHECK-NEXT: add x0, x8, x9 ; CHECK-NEXT: ret %p1 = getelementptr inbounds i32, i32* %a, i64 -63 %tmp1 = load i32, i32* %p1, align 2 %p2 = getelementptr inbounds i32, i32* %a, i64 -64 %tmp2 = load i32, i32* %p2, align 2 %sexttmp1 = sext i32 %tmp1 to i64 %sexttmp2 = zext i32 %tmp2 to i64 %tmp3 = add i64 %sexttmp1, %sexttmp2 ret i64 %tmp3 } define i64 @pairUpBarelyOut(i64* %a) nounwind ssp { ; Don't be fragile about which loads or manipulations of the base register ; are used---just check that there isn't an ldp before the add ; CHECK-LABEL: pairUpBarelyOut: ; CHECK: // %bb.0: ; CHECK-NEXT: sub x8, x0, #264 ; CHECK-NEXT: ldur x9, [x0, #-256] ; CHECK-NEXT: ldr x8, [x8] ; CHECK-NEXT: add x0, x9, x8 ; CHECK-NEXT: ret %p1 = getelementptr inbounds i64, i64* %a, i64 -32 %tmp1 = load i64, i64* %p1, align 2 %p2 = getelementptr inbounds i64, i64* %a, i64 -33 %tmp2 = load i64, i64* %p2, align 2 %tmp3 = add i64 %tmp1, %tmp2 ret i64 %tmp3 } define i64 @pairUpBarelyOutSext(i32* %a) nounwind ssp { ; Don't be fragile about which loads or manipulations of the base register ; are used---just check that there isn't an ldp before the add ; CHECK-LABEL: pairUpBarelyOutSext: ; CHECK: // %bb.0: ; CHECK-NEXT: sub x8, x0, #260 ; CHECK-NEXT: ldursw x9, [x0, #-256] ; CHECK-NEXT: ldrsw x8, [x8] ; CHECK-NEXT: add x0, x9, x8 ; CHECK-NEXT: ret %p1 = getelementptr inbounds i32, i32* %a, i64 -64 %tmp1 = load i32, i32* %p1, align 2 %p2 = getelementptr inbounds i32, i32* %a, i64 -65 %tmp2 = load i32, i32* %p2, align 2 %sexttmp1 = sext i32 %tmp1 to i64 %sexttmp2 = sext i32 %tmp2 to i64 %tmp3 = add i64 %sexttmp1, %sexttmp2 ret i64 %tmp3 } define i64 @pairUpNotAligned(i64* %a) nounwind ssp { ; CHECK-LABEL: pairUpNotAligned: ; CHECK: // %bb.0: ; CHECK-NEXT: ldur x8, [x0, #-143] ; CHECK-NEXT: ldur x9, [x0, #-135] ; CHECK-NEXT: add x0, x8, x9 ; CHECK-NEXT: ret %p1 = getelementptr inbounds i64, i64* %a, i64 -18 %bp1 = bitcast i64* %p1 to i8* %bp1p1 = getelementptr inbounds i8, i8* %bp1, i64 1 %dp1 = bitcast i8* %bp1p1 to i64* %tmp1 = load i64, i64* %dp1, align 1 %p2 = getelementptr inbounds i64, i64* %a, i64 -17 %bp2 = bitcast i64* %p2 to i8* %bp2p1 = getelementptr inbounds i8, i8* %bp2, i64 1 %dp2 = bitcast i8* %bp2p1 to i64* %tmp2 = load i64, i64* %dp2, align 1 %tmp3 = add i64 %tmp1, %tmp2 ret i64 %tmp3 } define i64 @pairUpNotAlignedSext(i32* %a) nounwind ssp { ; CHECK-LABEL: pairUpNotAlignedSext: ; CHECK: // %bb.0: ; CHECK-NEXT: ldursw x8, [x0, #-71] ; CHECK-NEXT: ldursw x9, [x0, #-67] ; CHECK-NEXT: add x0, x8, x9 ; CHECK-NEXT: ret %p1 = getelementptr inbounds i32, i32* %a, i64 -18 %bp1 = bitcast i32* %p1 to i8* %bp1p1 = getelementptr inbounds i8, i8* %bp1, i64 1 %dp1 = bitcast i8* %bp1p1 to i32* %tmp1 = load i32, i32* %dp1, align 1 %p2 = getelementptr inbounds i32, i32* %a, i64 -17 %bp2 = bitcast i32* %p2 to i8* %bp2p1 = getelementptr inbounds i8, i8* %bp2, i64 1 %dp2 = bitcast i8* %bp2p1 to i32* %tmp2 = load i32, i32* %dp2, align 1 %sexttmp1 = sext i32 %tmp1 to i64 %sexttmp2 = sext i32 %tmp2 to i64 %tmp3 = add i64 %sexttmp1, %sexttmp2 ret i64 %tmp3 } declare void @use-ptr(i32*) define i64 @ldp_sext_int_pre(i32* %p) nounwind { ; CHECK-LABEL: ldp_sext_int_pre: ; CHECK: // %bb.0: ; CHECK-NEXT: stp x30, x19, [sp, #-16]! // 16-byte Folded Spill ; CHECK-NEXT: mov x19, x0 ; CHECK-NEXT: add x0, x0, #8 ; CHECK-NEXT: bl "use-ptr" ; CHECK-NEXT: ldpsw x8, x9, [x19, #8] ; CHECK-NEXT: add x0, x9, x8 ; CHECK-NEXT: ldp x30, x19, [sp], #16 // 16-byte Folded Reload ; CHECK-NEXT: ret %ptr = getelementptr inbounds i32, i32* %p, i64 2 call void @use-ptr(i32* %ptr) %add.ptr = getelementptr inbounds i32, i32* %ptr, i64 0 %tmp = load i32, i32* %add.ptr, align 4 %add.ptr1 = getelementptr inbounds i32, i32* %ptr, i64 1 %tmp1 = load i32, i32* %add.ptr1, align 4 %sexttmp = sext i32 %tmp to i64 %sexttmp1 = sext i32 %tmp1 to i64 %add = add nsw i64 %sexttmp1, %sexttmp ret i64 %add } define i64 @ldp_sext_int_post(i32* %p) nounwind { ; CHECK-LABEL: ldp_sext_int_post: ; CHECK: // %bb.0: ; CHECK-NEXT: str x30, [sp, #-32]! // 8-byte Folded Spill ; CHECK-NEXT: add x8, x0, #8 ; CHECK-NEXT: stp x20, x19, [sp, #16] // 16-byte Folded Spill ; CHECK-NEXT: ldpsw x19, x20, [x0] ; CHECK-NEXT: mov x0, x8 ; CHECK-NEXT: bl "use-ptr" ; CHECK-NEXT: add x0, x20, x19 ; CHECK-NEXT: ldp x20, x19, [sp, #16] // 16-byte Folded Reload ; CHECK-NEXT: ldr x30, [sp], #32 // 8-byte Folded Reload ; CHECK-NEXT: ret %tmp = load i32, i32* %p, align 4 %add.ptr = getelementptr inbounds i32, i32* %p, i64 1 %tmp1 = load i32, i32* %add.ptr, align 4 %sexttmp = sext i32 %tmp to i64 %sexttmp1 = sext i32 %tmp1 to i64 %ptr = getelementptr inbounds i32, i32* %add.ptr, i64 1 call void @use-ptr(i32* %ptr) %add = add nsw i64 %sexttmp1, %sexttmp ret i64 %add }